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How to assemble the RTK motor board

Wall's Corners

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Title: How to assemble the RTK motor board
Author: Wall's Corners
Rating 5 of 5 Des:

Many thanks to Ryan Walmsley ( @Ryanteck ) for these instructions on how to assemble the RTK-000-001 Kit (Motor controller kit for the Ras...

<p>Many thanks to Ryan Walmsley (<a href="https://twitter.com/ryanteck" target="_blank">@Ryanteck</a>) for these instructions on how to assemble the <a href="http://ift.tt/1q28xn1" target="_blank">RTK-000-001 Kit</a> (Motor controller kit for the <a href="http://ift.tt/1o7SsLh" itemprop="url" target="_bank" title="Raspberry"><strong>Raspberry</strong></a> Pi) These instructions apply for both the kits on their own and the kits packaged with the robots as they are identical.   <strong><strong>What you need</strong> </strong>Main Parts:</p>
<ul>
<li><a href="http://ift.tt/1q28xn1" target="_blank">RTK-000-001 Kit</a></li>
<li><a href="http://ift.tt/1q28yHH" target="_blank">Soldering iron</a></li>
<li><a href="http://ift.tt/1UEWJEC" target="_blank">Solder</a> & <a href="http://ift.tt/1q28xn4" target="_blank">soldering sponge</a></li>
<li><a href="http://ift.tt/1UEWI3q" target="_blank">Wire cutters</a></li>
</ul>
<p>Optional:</p>
<ul>
<li><a href="http://ift.tt/1q28xn8" target="_blank">Helping Hands</a></li>
<li><a href="http://ift.tt/1UEWI3t" target="_blank">Long-nose Pliers</a></li>
</ul>
<p><strong>Assembly Instructions</strong> First start by confirming that you have all of the pieces out of the pack, it should contain: 1 X RTK-000-001 PCB 1 X SN754410NE (The IC) 1 X 16 Pin IC Socket 1 X 26 extra tall 26 way pin header 3 X Two Way terminal screw blocks 3 X Two Pin Headers</p>
<p><img alt="rtk-assembly-01" src="http://ift.tt/1q28x6E" /></p>
<p> </p>
<p><strong>Soldering the IC Socket</strong> First start by soldering the IC socket to the board, to do this insert the socket in with the notch lining up on the PCB, turn upside down and then solder, the foam from the socket can help to keep the PCB stable while soldering as seen below.</p>
<p><img alt="rtk-assembly-04" class="alignnone size-full wp-image-231" height="450" src="http://ift.tt/1UEWJUU" width="600" /> <img alt="rtk-assembly-03" class="alignnone size-full wp-image-230" height="450" src="http://ift.tt/1q28yHL" width="600" /></p>
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<p><strong>Soldering the terminal blocks</strong> Next solder the terminal blocks, place the blocks in with the terminals pointing outwards and then solder one pin of each socket. By doing only one pin you are able to check that they all are flush to the board and if not amend by heating the pin up and then pushing the terminal block in place. <img alt="rtk-assembly-06" class="alignnone size-full wp-image-233" height="450" src="http://ift.tt/1UEWI3v" width="600" /> <img alt="rtk-assembly-05" class="alignnone size-full wp-image-232" height="450" src="http://ift.tt/1q28xnc" width="600" /></p>
<p><strong>Soldering the 26 Pin GPIO header</strong> Now we need to solder the hardest part of the kit, the 26 Pin GPIO header, we find it easiest to first fit the GPIO header onto the Raspberry Pi and then solder two pins from oposite corners to make the board flat and hold it for the other 24 pins. After then solder all of the pins making sure you are careful not to cause a bridge or accidently melt another piece of the board. This will take time to get correct so do not rush this step otherwise there is a high chance you can make a mistake. Placing the pins ready and then soldering the top left and bottom right pins.</p>
<p><img alt="rtk-assembly-11" class="alignnone size-full wp-image-238" height="450" src="http://ift.tt/1UEWJUW" width="600" /> <img alt="rtk-assembly-08" class="alignnone size-full wp-image-235" height="450" src="http://ift.tt/1q28xne" width="600" /></p>
<p>Soldering the harder bottom row and then the top row.</p>
<p><img alt="rtk-assembly-09" class="alignnone size-full wp-image-236" height="450" src="http://ift.tt/1UEWJUY" width="600" /> <img alt="rtk-assembly-10" class="alignnone size-full wp-image-237" height="450" src="http://ift.tt/1q28yHN" width="600" /></p>
<p><strong>Soldering the 2 Pin Headers (Optional)</strong> If you wish to also have the extra <a href="http://ift.tt/1WLPB6O" itemprop="url" target="_bank" title="I2C"><strong>I2C</strong></a>, GND and 3V3 Pins then you can solder them on now, this may be tricky as you will need something to help keep the pins in place, a sponge normally can help or a piece of wood.</p>
<p><img alt="rtk-assembly-13" class="alignnone size-full wp-image-240" height="450" src="http://ift.tt/1UEWJV3" width="600" /> <img alt="rtk-assembly-12" class="alignnone size-full wp-image-239" height="450" src="http://ift.tt/1q28xng" width="600" /></p>
<p><strong>Fitting the IC Into the Socket</strong> Finally take the IC out of its foam and then insert into the socket, you will require to bend the pins slightly to fit it in. Make sure you fit it in with the notch aligning the notch on the socket (Closest to the two terminal blocks if the IC socket has been accidently put in the wrong way round).   <strong>Wiring the board</strong> The battery pack goes into the terminal block in the bottom right labeled VCC2 with the Positive wire in the left side and Negative in the Right side. Then use a small phillips screwdriver to screw the terminal block shut to hold the cables in place. The motors are able to go into the motor sockets either way round, once programmed if you find a motor is going the wrong direction it can be solved by switching the motor’s wires around in the same socket.   <strong>Other Notes</strong> It is not recommended to put the black conductive foam from the IC socket and the IC on the board to protect any pins. The foam is conductive so could cause issues to the board or your Raspberry Pi. You can store with the foam on when not in use and when there is no power applied as long as there is no foam when power is applied. This board has been tested up to 12V at 0.5A a motor, even tough the chip is capable of more these are the guidelines we recommend. The motors we provide with 4AAs work perfectly fine with the chip getting warm, any higher voltages or ampage may cause the chip to get extremely hot.</p>
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How to assemble the RTK motor board

Many thanks to Ryan Walmsley ( @Ryanteck ) for these instructions on how to assemble the RTK-000-001 Kit (Motor controller kit for the Ras...

Introducing the Adafruit WICED Feather WiFi

Wall's Corners

Link Author

Title: Introducing the Adafruit WICED Feather WiFi
Author: Wall's Corners
Rating 5 of 5 Des:

Overview Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed F...

<div class="page-title-wrapper">
<h1 class="headline"><span id="overview">Overview</span></h1>
</div>
<div class="page-content">
<div class="row-fluid build-image"><a href="http://ift.tt/1VsdqSp" target="_blank"><img alt="adafruit_products_3056_iso_demo_ORIG.jpg" class="31387-asset img-responsive" src="http://ift.tt/1Ycys6Q" /></a></div>
<div class="row-fluid build-text">
<p><a href="http://ift.tt/1ODoJ6c" target="_blank">Feather</a> is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the <strong>Adafruit WICED Feather </strong>– it’s our most powerful Feather yet! <a href="http://ift.tt/1ODoJ6c" target="_blank">We have other boards in the Feather family, check’em out here.</a></p>
<p>Say “Hi!” the WICED Feather! Perfect for your next Internet connected project, with a processor and WiFi core that can take anything you throw at it!</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1Ycyv2t" target="_blank"><img alt="adafruit_products_3056_top_demo_ORIG.jpg" class="31389-asset img-responsive" src="http://ift.tt/1Vsdpho" /></a></div>
<div class="row-fluid build-text">
<p>The WICED Feather is based on Broadcom’s WICED (Wireless Internet Connectivity for Embedded Devices) platform, and is paired up with a powerful STM32F205 ARM Cortex M3 processor running at 120MHz, with support for TLS 1.2 to access sites and web services safely and securely.</p>
<p>We spent a lot of time adding support for this processor and WiFi chipset to the <a href="http://ift.tt/25oS3pH" itemprop="url" target="_bank" title="Arduino"><strong>Arduino</strong></a> IDE you know and love. <a href="http://ift.tt/1LNMgUi" itemprop="url" target="_bank" title="Programming"><strong>Programming</strong></a> doesn’t rely on any online or third party tools to build, flash or run your code.  You write your code in the Arduino IDE using the same standard libraries you’ve always used (Wire, SPI, etc.), compile locally, and the device is flashed directly from the IDE over USB.</p>
<p>Since the WICED Feather is based on the standard <a href="http://ift.tt/21E1277" target="_blank">Adafruit Feather</a> layout, you also have instant access to a variety of Feather Wings, as well as all the usual standard breakouts available from Adafruit or other vendors.</p>
<p>After more than a year of full time effort in the making, we think it’s the best and most flexible WiFi development board out there, and the easiest way to get your TCP/IP-based project off the ground without sacrificing flexibility or security. We even cooked in some built-in libraries in the WiFi core, wuch as TCP client and Server, HTTP client and server, and MQTT client (with easy Adafruit IO interfacing).</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1VsdscQ" target="_blank"><img alt="adafruit_products_3056_quarter_ORIG.jpg" class="31390-asset img-responsive" src="http://ift.tt/1Ycysnd" /></a></div>
<div class="row-fluid build-text">
<p>The WICED Feather has the following key features:</p>
<ul>
<li>Measures 2.0″ x 0.9″ x 0.28″ (51mm x 23mm x 8mm) without headers soldered in</li>
<li>Light as a (large?) feather – 5.7 grams</li>
<li><a href="http://ift.tt/1XNU216" target="_blank">STM32F205RG</a> 120MHz ARM Cortex M3 MCU</li>
<li><a href="http://ift.tt/1ME5hYf" target="_blank">BCM43362</a> 802.11b/G/N radio</li>
<li>128KB SRAM and 1024KB flash memory (total)</li>
<li>16KB SRAM and 128KB flash available for user code</li>
<li>16MBit (2MB) SPI flash for additional data storage</li>
<li>Built in Real Time Clock (RTC) with optional external battery supply</li>
<li>Hardware SPI and <a href="http://ift.tt/1WLPB6O" itemprop="url" target="_bank" title="I2C"><strong>I2C</strong></a> (including clock-stretching)</li>
<li>12 standard GPIO pins, with additional GPIOs available via SPI, UART and I2C pins</li>
<li>7 standard PWM outputs, with additional outputs available via SPI, UART and I2C pins</li>
<li>Up to 8 12-bit ADC inputs</li>
<li>Two 12-bit DAC outputs (Pins A4 and SCK/A5)</li>
<li>Up to 3 UARTs (including one with full HW flow control)</li>
<li>TLS 1.2 support to access secure HTTPS and TCP servers</li>
<li>On board single-cell LIPO charging and battery monitoring</li>
<li>Fast and easy firmware updates to keep your module up to date</li>
<li>Based on the excellent community-supported<a href="http://ift.tt/1B3V5Ai" target="_blank">Maple</a> project</li>
</ul>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1VsdrFZ" target="_blank"><img alt="adafruit_products_3056_kit_revised_ORIG.jpg" class="31421-asset img-responsive" src="http://ift.tt/1YcyviQ" /></a></div>
<div class="row-fluid build-text">
<p>Comes fully assembled and tested, with a USB bootloader that lets you quickly use it with the Arduino IDE. We also toss in some headers so you can solder it in and plug into a solderless breadboard. <strong><a href="http://ift.tt/1wb196V" target="_blank">Lipoly battery</a> and <a href="http://ift.tt/1MnwlIM" target="_blank">MicroUSB cable</a> not included</strong> (but we do have lots of options in the shop if you’d like!)</p>
<p>Our learn guide will show you everything you need to know to get your projects online, and connected to the outside world!</p>
<div class="page-title-wrapper">
<h1 class="headline"><span id="board-layout">Board Layout</span></h1>
</div>
<div class="page-content">
<div class="row-fluid build-text">
<p>The WICED Feather uses the same standard pinout as the rest of the <a href="http://ift.tt/1VsdrG5" target="_blank">Feather family</a>, allowing you to use the same Feather Wings across all your compatible devices.</p>
<p>It has the standard Feather on board LIPO battery charger (simply connect a LIPO battery and USB power at the same time), and 3.3V voltage regulation from either USB or VBAT (the LIPO cell) with automatic switching between power supplies.</p>
</div>
<div class="row-fluid build-text">
<h1><span id="pin-multiplexing" class="anchor-link-target"></span>Pin Multiplexing</h1>
<p>The pins on the WICED Feather can be configured for several different purposes, with the main config options shown in the illustration below:</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1YcysDI" target="_blank"><img alt="adafruit_products_WICEDPinout.jpg" class="31391-asset img-responsive" src="http://ift.tt/1VsdrWo" /></a></div>
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<h1><span id="power-config" class="anchor-link-target"></span>Power Config</h1>
<p>The WICED Feather can be run from either 5V USB power or a standard ~3.7V LIPO cell, and includes the ability to charge LIPO cells from USB power when both are connected at the same time.</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1YcyviW" target="_blank"><img alt="adafruit_products_Power.jpg" class="31021-asset img-responsive" src="http://ift.tt/1VsdrWs" /></a></div>
<div class="row-fluid build-text">
<p>The following pins are included as part of the WICED Feather’s power system:</p>
<ul>
<li><strong>3V</strong>: The output of the on-board 3.3V 600mA voltage regulator</li>
<li><strong>RTC</strong>: The input for the realt-time clock (RTC) on the STM32F205 (optional)</li>
<li><strong>GND</strong>: The common/GND pin which should be connect to GND on any other boards you use</li>
<li><strong>BAT</strong>: The input for the 3.7V LIPO cell</li>
<li><strong>EN</strong>: The ‘EN’ switch for the 3.3V voltage regulator.  Set this to GND to disable power.</li>
<li><strong>VUSB</strong>: The 5V USB power input (USB VBUS)</li>
<li><strong>A1</strong>: This pin is optionally connected to a 10K+10K voltage divider that allows you to safely measure the output of the LIPO cell using the internal ADC (analog to digital converter).</li>
</ul>
<h3>LIPO Cell Power Monitoring (A1)</h3>
<p>The LIPO battery level can optionally be monitored via a voltage divider configured on ADC pin <strong>A1</strong>.</p>
<p>To enable the 10K + 10K voltage divider (which will divide the LIPO voltage levels in half so that the ADC pin can safely read them), you need to solder shut the <strong>BATADC</strong> solder jumper on the bottom of the PCB:</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1YcyviY" target="_blank"><img alt="adafruit_products_BATADC.jpg" class="31022-asset img-responsive" src="http://ift.tt/1VsdrWu" /></a></div>
<div class="row-fluid build-text">
<p>This will allow you to read the voltage level of the LIPO cell using pin <strong>A1</strong> where each value on the ADC is equal to <strong>0.80566mV</strong>since:</p>
<ul>
<li>3300mV / 4096 (12-bit ADC) = 0.80566406mV per LSB</li>
</ul>
<p>You need to <strong>double</strong> the calculated voltage to compensate for the 10K+10K voltage divider, so in reality every value from the ADC is equal to <strong>1.61133mV</strong> on the LIPO cell, although it appears on the ADC at half that level.</p>
</div>
<div class="row-fluid build-text">
<h1><span id="16-mbit-2mbyte-spi-flash" class="anchor-link-target"></span>16 Mbit (2MByte) SPI Flash</h1>
<p>The WICED Feather contains an optional (default = off) 16MBit SPI flash chip that is controlled by FeatherLib.</p>
<p>In order to keep the maximum number of pins available to customers, the SPI flash is currently disabled, but in a future version of the firmware the SPI flash will be enabled with USB Mass Storage support so that you can access the contents on the flash memory from your PC to easily exchange data and files.</p>
</div>
<div class="row-fluid build-alert alert-info">
<div class="alert">The 16MBit SPI Flash chip is not currently enabled in FeatherLib, but will be enabled along with USB Mass Storage support in a future firmware release.</div>
</div>
<div class="row-fluid build-alert alert-danger">
<div class="alert">The SPI3 bus used for SPI flash is controlled by FeatherLib, and the four pins shown below should be avoided in your own sketches when SPI Flash is enabled in a future FeatherLib release.</div>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1YcysDM" target="_blank"><img alt="adafruit_products_SPIFlash.jpg" class="31019-asset img-responsive" src="http://ift.tt/1VsdrWw" /></a></div>
<div class="row-fluid build-text">
<p>SPI flash is disabled by default. It can be enabled by soldering the <strong>SPIFCS (A4)</strong> solder jumper on the back of the PCB closed before powering the board up, which will connect the CS/SSEL of the SPI flash to pin <strong>A4</strong>:</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1YcysDR" target="_blank"><img alt="adafruit_products_SPIFlashSJ.jpg" class="31018-asset img-responsive" src="http://ift.tt/1VsdrWC" /></a></div>
<div class="row-fluid build-image">
<div class="page-title-wrapper">
<h1 class="headline"><span id="assembly">Assembly</span></h1>
</div>
<div class="page-content">
<div class="row-fluid build-text">
<p>We ship Feathers fully tested but without headers attached – this gives you the most flexibility on choosing how to use and configure your Feather</p>
</div>
<div class="row-fluid build-text">
<h1><span id="header-options" class="anchor-link-target"></span>Header Options!</h1>
<p>Before you go gung-ho on soldering, there’s a few options to consider!</p>
</div>
<table class="build-table">
<tbody>
<tr class="build-row">
<td class="side-images"><span id="step-3" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/1YcysDT" target="_blank"><img alt="feather_3010-05.jpg" class="30192-asset medium-side-image img-responsive" src="http://ift.tt/1VsdsK5" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Ycyvzk" target="_blank"><img alt="feather_3010-05.jpg" class="30192-asset small-side-image img-responsive" src="http://ift.tt/1VsdsK7" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1YcysDT" target="_blank"><img alt="feather_3010-01.jpg" class="30201-asset small-side-image img-responsive" src="http://ift.tt/1Ycyvzo" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<p>The first option is soldering in plain male headers, this lets you plug in the Feather into a solderless breadboard</p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-4" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/1VsdsK9" target="_blank"><img alt="feather_2886-01.jpg" class="30195-asset medium-side-image img-responsive" src="http://ift.tt/1Sxg4RV" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1VsdsK9" target="_blank"><img alt="feather_2886-01.jpg" class="30195-asset small-side-image img-responsive" src="http://ift.tt/25HSs71" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg4RX" target="_blank"><img alt="feather_2886-02.jpg" class="30196-asset small-side-image img-responsive" src="http://ift.tt/25HStYt" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<p>Another option is to go with socket female headers. This won’t let you plug the Feather into a breadboard but it will let you attach featherwings very easily</p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-5" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/1Sxg4S0" target="_blank"><img alt="feather_2940-01.jpg" class="30197-asset medium-side-image img-responsive" src="http://ift.tt/25HSsnf" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg4S0" target="_blank"><img alt="feather_2940-01.jpg" class="30197-asset small-side-image img-responsive" src="http://ift.tt/1Sxg4S2" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HStYv" target="_blank"><img alt="feather_2940-04.jpg" class="30198-asset small-side-image img-responsive" src="http://ift.tt/1Sxg4S5" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<p>We also  have ‘slim’ versions of the female headers, that are a little shorter and give a more compact shape</p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-6" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/25HStYx" target="_blank"><img alt="feather_2830-01.jpg" class="30199-asset medium-side-image img-responsive" src="http://ift.tt/1Sxg4S7" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HStYx" target="_blank"><img alt="feather_2830-01.jpg" class="30199-asset small-side-image img-responsive" src="http://ift.tt/25HSsnh" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg2cP" target="_blank"><img alt="feather_2830-00.jpg" class="30200-asset small-side-image img-responsive" src="http://ift.tt/25HSsnj" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<p>Finally, there’s the “Stacking Header” option. This one is sort of the best-of-both-worlds. You get the ability to plug into a solderless breadboard <em>and</em> plug a featherwing on top. But its a little bulky</p>
</div>
</td>
</tr>
</tbody>
</table>
<div class="row-fluid build-text">
<h1><span id="soldering-in-plain-headers" class="anchor-link-target"></span>Soldering in Plain Headers</h1>
</div>
<table class="build-table">
<tbody>
<tr class="build-row">
<td class="side-images"><span id="step-8" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/1Sxg58l" target="_blank"><img alt="feather_headers.jpg" class="30183-asset medium-side-image img-responsive" src="http://ift.tt/25HSsnl" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<h2>Prepare the header strip:</h2>
<p>Cut the strip to length if necessary. It will be easier to solder if you insert it into a breadboard – <strong>long pins down</strong></p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-9" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/1Sxg2cR" target="_blank"><img alt="feather_solder1.jpg" class="30184-asset medium-side-image img-responsive" src="http://ift.tt/25HStYB" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg2cR" target="_blank"><img alt="feather_solder1.jpg" class="30184-asset small-side-image img-responsive" src="http://ift.tt/1Sxg58n" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HSsnn" target="_blank"><img alt="feather_solder2.jpg" class="30185-asset small-side-image img-responsive" src="http://ift.tt/1Sxg2cT" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HSsnp" target="_blank"><img alt="feather_solder3.jpg" class="30186-asset small-side-image img-responsive" src="http://ift.tt/1Sxg58p" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<h2>Add the breakout board:</h2>
<p>Place the breakout board over the pins so that the short pins poke through the breakout pads</p>
<h2>And Solder!</h2>
<p>Be sure to solder all pins for reliable electrical contact.</p>
<p><em>(For tips on soldering, be sure to check out our</em> <a href="http://ift.tt/1sJUaVd" target="_blank"><em>Guide to Excellent Soldering</em></a><em>).</em></p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-10" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/1Sxg58r" target="_blank"><img alt="feather_solder4.jpg" class="30187-asset medium-side-image img-responsive" src="http://ift.tt/25HStYD" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg58r" target="_blank"><img alt="feather_solder4.jpg" class="30187-asset small-side-image img-responsive" src="http://ift.tt/1Sxg58v" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HSsnr" target="_blank"><img alt="feather_solder5.jpg" class="30188-asset small-side-image img-responsive" src="http://ift.tt/1Sxg2cV" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HSueT" target="_blank"><img alt="feather_solder6.jpg" class="30189-asset small-side-image img-responsive" src="http://ift.tt/1Sxg58x" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<p>Solder the other strip as well.</p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-11" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/25HSueV" target="_blank"><img alt="feather_done.jpg" class="30190-asset medium-side-image img-responsive" src="http://ift.tt/1Sxg2cX" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<p>You’re done! Check your solder joints visually and continue onto the next steps</p>
</div>
</td>
</tr>
</tbody>
</table>
<div class="row-fluid build-text">
<h1><span id="soldering-on-female-header" class="anchor-link-target"></span>Soldering on Female Header</h1>
</div>
<table class="build-table">
<tbody>
<tr class="build-row">
<td class="side-images"><span id="step-13" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/25HSsnv" target="_blank"><img alt="feather_taped.jpg" class="30203-asset medium-side-image img-responsive" src="http://ift.tt/1Sxg2tb" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<h2>Tape In Place</h2>
<p>For sockets you’ll want to tape them in place so when you flip over the board they don’t fall out</p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-14" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/25HSueZ" target="_blank"><img alt="feather_tack1.jpg" class="30204-asset medium-side-image img-responsive" src="http://ift.tt/1Sxg2td" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HSueZ" target="_blank"><img alt="feather_tack1.jpg" class="30204-asset small-side-image img-responsive" src="http://ift.tt/25HSsDL" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg2tf" target="_blank"><img alt="feather_tack2.jpg" class="30205-asset small-side-image img-responsive" src="http://ift.tt/25HSuf3" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg2th" target="_blank"><img alt="feather_tack3.jpg" class="30206-asset small-side-image img-responsive" src="http://ift.tt/25HSsDO" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<h2>Flip & Tack Solder</h2>
<p>After flipping over, solder one or two points on each strip, to ‘tack’ the header in place</p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-15" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/1Sxg2tj" target="_blank"><img alt="feather_soldre1.jpg" class="30207-asset medium-side-image img-responsive" src="http://ift.tt/25HSsDQ" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg2tl" target="_blank"><img alt="feather_soldre1.jpg" class="30207-asset small-side-image img-responsive" src="http://ift.tt/25HSuf5" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg58B" target="_blank"><img alt="feather_solder2.jpg" class="30208-asset small-side-image img-responsive" src="http://ift.tt/25HSuf7" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/1Sxg2tj" target="_blank"><img alt="feather_solder3.jpg" class="30209-asset small-side-image img-responsive" src="http://ift.tt/1Sxg2tp" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<h2>And Solder!</h2>
<p>Be sure to solder all pins for reliable electrical contact.</p>
<p><em>(For tips on soldering, be sure to check out our</em> <a href="http://ift.tt/1sJUaVd" target="_blank"><em>Guide to Excellent Soldering</em></a><em>).</em></p>
</div>
</td>
</tr>
<tr class="build-row">
<td class="side-images"><span id="step-16" class="anchor-link-target"></span>
<ul>
<li class="medium-side"><a class="large-side-image-link" href="http://ift.tt/25HSsDS" target="_blank"><img alt="feather_soldered.jpg" class="30210-asset medium-side-image img-responsive" src="http://ift.tt/1Sxg2tr" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HSsDU" target="_blank"><img alt="feather_soldered.jpg" class="30210-asset small-side-image img-responsive" src="http://ift.tt/1Sxg58D" /></a></li>
<li class="small-side"><a class="medium-side-image-link" href="http://ift.tt/25HSsDS" target="_blank"><img alt="feather_done.jpg" class="30211-asset small-side-image img-responsive" src="http://ift.tt/25HSsDW" /></a></li>
</ul>
</td>
<td class="side-text">
<div class="text">
<p>You’re done! Check your solder joints visually and continue onto the next steps</p>
</div>
</td>
</tr>
</tbody>
</table>
<div class="page-title-wrapper">
<h1 class="headline"><span id="get-the-wiced-bsp">Get the WICED BSP</span></h1>
</div>
<div class="page-content">
<div class="row-fluid build-text">
<p>To use the WICED Feather, you first need to install a board support package (BSP) that includes all the classes, drivers and example code that make it possible to create projects that can talk to the STM32F205 MCU and Broadcom radio.  This guide will walk you through the process of getting the BSP setup on your development machine.</p>
</div>
<div class="row-fluid build-alert alert-danger">
<div class="alert">In a future release the WICED Feather BSP will be installable through the Arduino IDE’s Board Manager, but for the initial Developer Edition this is still a manual process.</div>
</div>
<div class="row-fluid build-alert alert-info">
<div class="alert">This guide is based on Arduino 1.6.5 or higher. We suggest using a similar version of the Arduino IDE with the WICED Feather.</div>
</div>
<div class="row-fluid build-text">
<h1><span id="setup-option-1-download-a-release-from-github" class="anchor-link-target"></span>Setup Option 1: Download a Release from Github</h1>
<p>The easiest method of getting the WICED Feather board support package onto your system is to go to the <a href="http://ift.tt/1Sxg2tt" target="_blank">Releases Page</a> in the Adafruit_WICED_Arduino Github repo and download a .zip file containing all the files you need.</p>
</div>
<div class="button-element"><a class="btn btn-large btn-block btn-primary" href="http://ift.tt/1Sxg2tt" target="_blank">Go to the Adafruit_WICED_Arduino Releases Page</a></div>
<div class="row-fluid build-text">
<h2><span id="1-download-the-release-dot-zip-file" class="anchor-link-target"></span>1. Download the Release .zip File</h2>
<ul>
<li>From the <a href="http://ift.tt/1Sxg2tt" target="_blank">Releases page</a> download the <strong>.zip</strong> file for the release you want:</li>
</ul>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/25HSuvn" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-15_at_14.24.44.png" class="31291-asset img-responsive" src="http://ift.tt/1Sxg2JI" /></a></div>
<div class="row-fluid build-text">
<ul>
<li>Unzip the downloaded file (simply double-click the file in most operating systems)</li>
<li>Rename the unzipped folder <strong>Adafruit_WICED_Arduino</strong></li>
</ul>
</div>
<div class="row-fluid build-text">
<h2><span id="2-create-the-arduino-slash-hardware-folder" class="anchor-link-target"></span>2. Create the ‘Arduino/hardware’ Folder</h2>
<p>Before you can start using the WICED Feather board support package that you just downloaded, you will probably need to setup a special ‘<strong>hardware</strong>‘ folder on your system, which is used to store special board support packages.</p>
<p>The exact location of this folder depends on your operating system:</p>
<h3>OS X / Linux</h3>
<p>From the command-line run the following commands to create the ‘Arduino/hardware’ folder:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSuvp" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="com"># Move to the Documents/Arduino folder</span></li>
<li class="L1"><span class="pln">$ cd $HOME</span><span class="pun">/</span><span class="typ">Documents</span><span class="pun">/</span><span class="typ">Arduino</span></li>
<li class="L2"><span class="pln"> </span></li>
<li class="L3"><span class="com"># Create the ‘hardware’ folder if it doesn’t already exist</span></li>
<li class="L4"><span class="pln">$ mkdir hardware</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h2><span id="windows" class="anchor-link-target"></span>Windows</h2>
<p>On Windows, click on the <strong>My Documents</strong> icon in Windows Explorer, and then create a new folder name ‘hardware’ if it doesn’t already exists:</p>
</div>
<div class="row-fluid build-alert alert-info">
<div class="alert">The ‘Arduino’ folder is usually found at ‘\Users\{yourusername}\Documents\Arduino’</div>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg5oR" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-09_at_15.00.07.png" class="30950-asset img-responsive" src="http://ift.tt/25HSsE0" /></a></div>
<div class="row-fluid build-text">
<h2><span id="3-move-the-repo-into-arduino-slash-hardware" class="anchor-link-target"></span>3. Move the Repo into ‘Arduino/Hardware’</h2>
<p>Once you’ve unzipped the WICED Feather board support package and created the ‘hardware’ folder, simply drag the ‘Adafruit_WICED_Arduino’ folder into ‘hardware’.</p>
<p>This should give you a folder structure like this:</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg5oT" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-09_at_15.13.46.png" class="30951-asset img-responsive" src="http://ift.tt/25HSsE2" /></a></div>
<div class="row-fluid build-text">
<h1><span id="setup-option-2-clone-adafruit-wiced-arduino" class="anchor-link-target"></span> Setup Option 2: Clone Adafruit_WICED_Arduino</h1>
<p>If you already have ‘git’ available on the command-line, the easiest way to clone the <a href="http://ift.tt/1Sxg2JL" target="_blank">Adafruit_WICED_Arduino</a> repo is to run the following command sequence from the ‘Arduino’ sub-folder in your local documents directory.</p>
</div>
<div class="row-fluid build-text">
<h2><span id="os-x-slash-linux-command-line" class="anchor-link-target"></span>OS X / Linux Command Line</h2>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSuvp" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="com"># Move to the Documents/Arduino folder</span></li>
<li class="L1"><span class="pln">$ cd $HOME</span><span class="pun">/</span><span class="typ">Documents</span><span class="pun">/</span><span class="typ">Arduino</span></li>
<li class="L2"><span class="pln"> </span></li>
<li class="L3"><span class="com"># Create the ‘hardware’ folder if it doesn’t already exist</span></li>
<li class="L4"><span class="pln">$ mkdir hardware</span></li>
<li class="L5"><span class="pln"> </span></li>
<li class="L6"><span class="com"># Switch to the ‘hardware’ folder</span></li>
<li class="L7"><span class="pln">$ cd hardware</span></li>
<li class="L8"><span class="pln"> </span></li>
<li class="L9"><span class="com"># Clone the Adafruit_WICED_Arduino repository</span></li>
<li class="L0"><span class="pln">$ git clone https</span><span class="pun">:</span><span class="com">//github.com/adafruit/Adafruit_WICED_Arduino.git</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h2><span id="windows-command-line" class="anchor-link-target"></span>Windows Command Line</h2>
<p>If you are using the Windows command line, we suggest using the latest <a href="http://ift.tt/1IUp28F" target="_blank">git for Windows</a> installer.</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSuvp" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="com"># Move to the ‘My Documents\Arduino’ folder</span></li>
<li class="L1"><span class="pun">></span> <span class="pln">cd \users\{yourusername</span><span class="pun">}</span><span class="pln">\documents\Arduino</span></li>
<li class="L2"><span class="pln"> </span></li>
<li class="L3"><span class="com"># Create the ‘hardware’ folder if it doesn’t already exist</span></li>
<li class="L4"><span class="pun">></span> <span class="pln">md hardware</span></li>
<li class="L5"><span class="pln"> </span></li>
<li class="L6"><span class="com"># Switch to the ‘hardware’ folder</span></li>
<li class="L7"><span class="pun">></span> <span class="pln">cd hardware</span></li>
<li class="L8"><span class="pln"> </span></li>
<li class="L9"><span class="com"># Clone the Adafruit_WICED_Arduino repository</span></li>
<li class="L0"><span class="pun">></span> <span class="pln">git clone https</span><span class="pun">:</span><span class="com">//github.com/adafruit/Adafruit_WICED_Arduino.git</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h2><span id="windows-tortoisegit" class="anchor-link-target"></span>Windows TortoiseGit</h2>
<p>If you prefer to use <a href="http://ift.tt/1ec3Dhr" target="_blank">TortoiseGit</a> you need to create the <strong>My Documents/Arduino/hardware</strong> folder, and then clone the Adafruit_WICED_Arduino repository into that folder as shown below.</p>
<ul>
<li>Right click inside the <strong>My Documents/Arduino/hardware</strong>folder in Windows Explorer and select the <strong>Git Clone</strong>… menu item:</li>
</ul>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/25HSsUg" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-09_at_14.45.21.png" class="30947-asset img-responsive" src="http://ift.tt/1Sxg5oV" /></a>
<div class="page-title-wrapper">
<h1 class="headline"><span id="windows-setup">Windows Setup</span></h1>
</div>
<div class="page-content">
<div class="row-fluid build-text">
<p>To setup the WICED Feather on Windows, the following steps are necessary:</p>
</div>
<div class="row-fluid build-alert alert-danger">
<div class="alert">This page assumes you have already installed the WICED Feather BSP, as detailed earlier in this guide.</div>
</div>
<div class="row-fluid build-text">
<h1><span id="install-adafruit-windows-drivers" class="anchor-link-target"></span>Install Adafruit Windows Drivers</h1>
<p>If you are using a Windows based system, you will need to install a set of drivers for the USB DFU, USB CDC and other USB interfaces used by the WICED Feather to perform fimware updates and communicate with the device.</p>
<p>Adafruit provides a convenient <a href="http://ift.tt/25HSsUi" target="_blank">Adafruit Windows Drivers</a> installer that takes care of the details for you.  Simply download and install the package below:</p>
</div>
<div class="button-element"><a class="btn btn-large btn-block btn-primary" href="http://ift.tt/25HSsUi" target="_blank">Visit the Adafruit Windows Drivers download page</a></div>
<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg2JN" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-15_at_14.42.07.png" class="31293-asset img-responsive" src="http://ift.tt/25HSuvz" /></a></div>
<div class="row-fluid build-text">
<p>Once the installation process is complete, you should be able to plug your WICED Feather into your system and it will be recognized thanks to the signed drivers you just installed.</p>
</div>
<div class="row-fluid build-text">
<h1><span id="install-libusb-0-dot-1-runtime" class="anchor-link-target"></span>Install libusb 0.1 Runtime</h1>
<p>To use libusb (which is required to communicate with the WICED Feather), you will first need to install a pre-compiled libusb runtime.</p>
<p>You can install this by downloading and running <a href="http://ift.tt/1Sxg2JP" target="_blank">libusb-win32 driver</a>, taking care to select the file named <strong>libusb-win32-devel-filter-1.2.6.0.exe</strong>.</p>
</div>
<div class="button-element"><a class="btn btn-large btn-block btn-primary" href="http://ift.tt/25HSuvB" target="_blank">Download libusb-win32-devel-filter-1.2.6.0.exe from SourceForge</a></div>
<div class="row-fluid build-text">
<p>Make sure to <strong>DISABLE</strong> the ‘Launch filter installer wizard’ option at the end of the installation process!</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg2JQ" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-15_at_14.36.18.png" class="31292-asset img-responsive" src="http://ift.tt/25HSuvD" /></a></div>
<div class="row-fluid build-text">
<h1><span id="install-python-2-dot-7" class="anchor-link-target"></span>Install Python 2.7</h1>
<p>Python is used by the WICED Feather for a number of cross-platform tools and scripts, meaning that you will need to install<a href="http://ift.tt/1IwEnkn" target="_blank">Python 2.7</a> (ideally 2.7.9 or higher) on your system in order to communicate with the board.</p>
<p>Depending on whether you are running a 32-bit (x86) or a 64-bit (AMD x64) version of Windows, download the installer linked below and start the installation process:</p>
</div>
<div class="button-element"><a class="btn btn-large btn-block btn-primary" href="http://ift.tt/25HSsUm" target="_blank">Click here to download the Python 2.7.11 Windows 32-bit (x86) Installer</a></div>
<div class="button-element"><a class="btn btn-large btn-block btn-primary" href="http://ift.tt/1Sxg2JS" target="_blank">Click here to download the Python 2.7.11 Windows 64-bit (AMD x64) Installer</a></div>
<div class="row-fluid build-text">
<p>During the installation process make sure that you enable the option to add Python to the system path (the option is disabled by default). This is required for the Arduino IDE to be able to access the <a href="http://ift.tt/1RBcFRc" itemprop="url" target="_bank" title="python"><strong>python</strong></a> scripts it needs to communicate with the WICED Feather:</p>
</div>
<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg2JT" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-15_at_14.11.09.png" class="31290-asset img-responsive" src="http://ift.tt/25HSsUq" /></a></div>
<div class="row-fluid build-text">
<h2><span id="testing-the-python-installation" class="anchor-link-target"></span>Testing the Python Installation</h2>
<p>Once the installer is finished you can open the command line and enter the following command to test the availability of Python on your system:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/1Sxg5oZ" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">python</span> <span class="pun">—</span><span class="pln">version</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<p>You should see something like this:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/1Sxg5oZ" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="typ">Python</span> <span class="lit">2.7</span><span class="pun">.</span><span class="lit">11</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h1><span id="install-python-tools" class="anchor-link-target"></span>Install Python Tools</h1>
<p>The WICED Feather BSP uses a few Python based tools to allow the Arduino IDE to talk to the hardware in a platform-independent manner (specifically<strong>tools/feather_dfu/feather_dfu.py</strong>).</p>
<p>To use these Python tools, you will need a few additional libraries to make the <a href="http://ift.tt/25HSsUs" itemprop="url" target="_bank" title="Controlling DC Motors Using Python With a Raspberry Pi"><strong>python</strong></a> scripts work.</p>
<p>Running the following command from the command line will install these dependencies:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/1Sxg5oZ" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">pip install</span> <span class="pun">—</span><span class="pln">pre pyusb</span></li>
<li class="L1"><span class="pln">pip install click</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<p>This will display some basic progress data on the installation process, and you should end up with something resembling the following output:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/1Sxg5oZ" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">C</span><span class="pun">:</span><span class="pln">\Users\me</span><span class="pun">></span><span class="pln">pip install</span> <span class="pun">—</span><span class="pln">pre pyusb</span></li>
<li class="L1"><span class="typ">Collecting</span> <span class="pln">pyusb</span></li>
<li class="L2"><span class="typ">Downloading</span> <span class="pln">pyusb</span><span class="pun">–</span><span class="lit">1.0</span><span class="pun">.</span><span class="lit">0rc1.tar</span><span class="pun">.</span><span class="pln">gz</span> <span class="pun">(</span><span class="lit">53kB</span><span class="pun">)</span></li>
<li class="L3"><span class="lit">100</span><span class="pun">%</span> <span class="pun">|</span><span class="com">################################| 57kB 1.3MB/s</span></li>
<li class="L4"><span class="typ">Installing</span> <span class="pln">collected packages</span><span class="pun">:</span> <span class="pln">pyusb</span></li>
<li class="L5"><span class="typ">Running</span> <span class="pln">setup</span><span class="pun">.</span><span class="pln">py install</span> <span class="kwd">for</span> <span class="pln">pyusb</span></li>
<li class="L6"><span class="typ">Successfully</span> <span class="pln">installed pyusb</span><span class="pun">–</span><span class="lit">1.0</span><span class="pun">.</span><span class="lit">0rc1</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h3>Testing the Installation</h3>
<p>You can test if Python is setup correctly by going to the ‘/tools/feather_dfu’ folder in the WICED Feather BSP and running the following command with the WICED Feather connected:</p>
</div>
<div class="row-fluid build-alert alert-info">
<div class="alert">This step assumes you have already installed the Arduino IDE and the WICED Feather BSP, detailed earlier in this learning guide.</div>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/1Sxg5oZ" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">$ cd \tools\feather_dfu</span></li>
<li class="L1"><span class="pln">$ python feather_dfu</span><span class="pun">.</span><span class="pln">py info</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<p>This should display something resembling the following output:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/1Sxg5oZ" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="typ">Feather</span></li>
<li class="L1"><span class="pln">ST32F205RGY</span></li>
<li class="L2"><span class="lit">353231313533470E00420037</span></li>
<li class="L3"><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span></li>
<li class="L4"><span class="lit">1.0</span><span class="pun">.</span><span class="lit">0</span></li>
<li class="L5"><span class="lit">3.5</span><span class="pun">.</span><span class="lit">2</span></li>
<li class="L6"><span class="lit">0.5</span><span class="pun">.</span><span class="lit">0</span></li>
<li class="L7"><span class="lit">0.5</span><span class="pun">.</span><span class="lit">0</span></li>
<li class="L8"><span class="typ">Mar</span> <span class="lit">8</span> <span class="lit">2016</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h1><span id="optional-install-adalink" class="anchor-link-target"></span>Optional: Install AdaLink</h1>
<p>If you ever need to reflash the USB DFU bootloader on the WICED Feather (which will require either a <a href="http://ift.tt/1Sxg2JV" target="_blank">Segger J-Link</a> or an<a href="http://ift.tt/1I5zfiZ" target="_blank">STLink/V2</a>), you will also need to install a utility called <a href="http://ift.tt/1Mt7hCm" target="_blank">AdaLink</a>.</p>
<p>AdaLink acts as a simple python-based abstraction layer between various HW debuggers, and the different ARM MCU families that we use at Adafruit.</p>
<p>For installation instructions on AdaLink see the <a href="http://ift.tt/1Mt7hCm" target="_blank">Readme file</a> in the git repository.</p>
</div>
</div>
<p><a href="http://ift.tt/25HSsUu" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-15_at_23.16.37.png" class="31304-asset img-responsive" src="http://ift.tt/1Sxg2JX" /></a></p>
</div>
<div class="row-fluid build-image">
<div class="page-title-wrapper">
<h1 class="headline"><span id="os-x-setup">OS X Setup</span></h1>
</div>
<div class="page-content">
<div class="row-fluid build-text">
<p>To setup the WICED Feather on OS X, the following steps are necessary:</p>
</div>
<div class="row-fluid build-alert alert-danger">
<div class="alert">This page assumes you have already installed the WICED Feather BSP, as detailed earlier in this guide.</div>
</div>
<div class="row-fluid build-text">
<h1><span id="install-dfu-util" class="anchor-link-target"></span>Install dfu-util</h1>
<p>The WICED Feather uses USB DFU to perform firmware updates from the Arduino IDE.  To enable to Arduino IDE to talk to the board you will need to install dfu-util.</p>
<p>The easiest way to install dfu-util is to use <a href="http://brew.sh/" target="_blank">homebrew</a>, which can be installed with the following command if it doesn’t already exist on your system:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSsUw" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="str">/usr/</span><span class="pln">bin</span><span class="pun">/</span><span class="pln">ruby</span> <span class="pun">–</span><span class="pln">e</span> <span class="str">“$(curl -fsSL http://ift.tt/YQTuQh)”</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<p>Once homebrew is installed you can install <strong>dfu-util</strong> from the command line with the following command:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSsUw" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">brew install dfu</span><span class="pun">–</span><span class="pln">util</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h3>Testing the Installation</h3>
<p>You can check if dfu-util was installed correctly by running the following command with the WICED Feather connected:</p>
</div>
<div class="row-fluid build-alert alert-info">
<div class="alert">Make sure your board is in DFU mode before running this command. You can enter DFU mode by double-clicking the RESET button quickly, or by setting the DFU pin to GND at startup. You’ll know that are in DFU mode because the status LED will blink at a 5Hz rate.</div>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSsUw" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">$ dfu</span><span class="pun">–</span><span class="pln">util</span> <span class="pun">—</span><span class="pln">list</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<div class="ezAdsense adsense adsense-midtext" style="text-align:center;margin:12px;"><script async="" src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js" type="text/javascript">
</script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-2979805726071943" data-ad-slot="7471922310" data-ad-format="auto"></ins> <script type="text/javascript">
//<![CDATA[
(adsbygoogle = window.adsbygoogle || []).push({});
//]]>
</script></div>
<p>This should give you results resembling the following output:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSsUw" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">dfu</span><span class="pun">–</span><span class="pln">util</span> <span class="lit">0.8</span></li>
<li class="L1"><span class="pln"> </span></li>
<li class="L2"><span class="typ">Copyright</span> <span class="lit">2005</span><span class="pun">–</span><span class="lit">2009</span> <span class="typ">Weston</span> <span class="typ">Schmidt</span><span class="pun">,</span> <span class="typ">Harald</span> <span class="typ">Welte</span> <span class="kwd">and</span> <span class="typ">OpenMoko</span> <span class="typ">Inc</span><span class="pun">.</span></li>
<li class="L3"><span class="typ">Copyright</span> <span class="lit">2010</span><span class="pun">–</span><span class="lit">2014</span> <span class="typ">Tormod</span> <span class="typ">Volden</span> <span class="kwd">and</span> <span class="typ">Stefan</span> <span class="typ">Schmidt</span></li>
<li class="L4"><span class="typ">This</span> <span class="pln">program</span> <span class="kwd">is</span> <span class="typ">Free</span> <span class="typ">Software</span> <span class="kwd">and</span> <span class="pln">has ABSOLUTELY NO WARRANTY</span></li>
<li class="L5"><span class="typ">Please</span> <span class="pln">report bugs to</span> <span class="pln">dfu</span><span class="pun">–</span><span class="pln">util@lists</span><span class="pun">.</span><span class="pln">gnumonks</span><span class="pun">.</span><span class="pln">org</span></li>
<li class="L6"><span class="pln"> </span></li>
<li class="L7"><span class="typ">Deducing</span> <span class="pln">device DFU version</span> <span class="kwd">from</span> <span class="pln">functional descriptor length</span></li>
<li class="L8"><span class="typ">Found</span> <span class="pln">DFU</span><span class="pun">:</span> <span class="pun">[</span><span class="lit">239a</span><span class="pun">:</span><span class="lit">0008</span><span class="pun">]</span> <span class="pln">ver</span><span class="pun">=</span><span class="lit">0200</span><span class="pun">,</span> <span class="pln">devnum</span><span class="pun">=</span><span class="lit">12</span><span class="pun">,</span> <span class="pln">cfg</span><span class="pun">=</span><span class="lit">1</span><span class="pun">,</span> <span class="pln">intf</span><span class="pun">=</span><span class="lit">0</span><span class="pun">,</span> <span class="pln">alt</span><span class="pun">=</span><span class="lit">0</span><span class="pun">,</span> <span class="pln">name</span><span class="pun">=</span><span class="str">“@Internal Flash /0x08000000/02*016Ka,02*016Kg,01*064Kg,07*128Kg”</span><span class="pun">,</span> <span class="pln">serial</span><span class="pun">=</span><span class="str">“00000000001C”</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h1><span id="install-python-tools" class="anchor-link-target"></span>Install Python Tools</h1>
<p>The WICED Feather BSP uses a few Python based tools to allow the Arduino IDE to talk to the hardware in a platform-independent manner (specifically<strong>tools/feather_dfu/feather_dfu.py</strong>).</p>
<p>To use these Python tools, you will need to have Python available on your system (which OS X does by default), but you will also need a few additional libraries to make the python scripts work.</p>
<p>Running the following command from the command line will install these dependencies:</p>
</div>
<div class="row-fluid build-alert alert-info">
<div class="alert">Depending on your system setup you may need to run the pip commands with ‘sudo’</div>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSsUw" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">pip install</span> <span class="pun">—</span><span class="pln">pre pyusb</span></li>
<li class="L1"><span class="pln">pip install click</span></li>
</ol>
</div>
<div class="row-fluid build-alert alert-danger">
<div class="alert">If you get an error like ‘-bash: pip: command not found’ you can install pip via ‘sudo easy_install pip’</div>
</div>
<div class="row-fluid build-text">
<h3>Testing the Installation</h3>
<p>You can test if Python is setup correctly by going to the ‘/tools/feather_dfu’ folder in the WICED Feather BSP and running the following command with the WICED Feather connected:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSsUw" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="pln">$ cd tools</span><span class="pun">/</span><span class="pln">feather_dfu</span></li>
<li class="L1"><span class="pln">$ python feather_dfu</span><span class="pun">.</span><span class="pln">py info</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<p>This should display something resembling the following output:</p>
</div>
<div class="build-code">
<div class="code-copy-container"><a class="code-copy-button" href="http://ift.tt/25HSsUw" target="_blank">Copy Code</a></div>
<ol class="linenums">
<li class="L0"><span class="typ">Feather</span></li>
<li class="L1"><span class="pln">ST32F205RGY</span></li>
<li class="L2"><span class="lit">353231313533470E00420037</span></li>
<li class="L3"><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span><span class="pun">:</span><span class="pln">FF</span></li>
<li class="L4"><span class="lit">1.0</span><span class="pun">.</span><span class="lit">0</span></li>
<li class="L5"><span class="lit">3.5</span><span class="pun">.</span><span class="lit">2</span></li>
<li class="L6"><span class="lit">0.5</span><span class="pun">.</span><span class="lit">0</span></li>
<li class="L7"><span class="lit">0.5</span><span class="pun">.</span><span class="lit">0</span></li>
<li class="L8"><span class="typ">Mar</span> <span class="lit">8</span> <span class="lit">2016</span></li>
</ol>
</div>
<div class="row-fluid build-text">
<h1><span id="optional-install-adalink" class="anchor-link-target"></span>Optional: Install AdaLink</h1>
<p>If you ever need to reflash the USB DFU bootloader on the WICED Feather (which will require either a <a href="http://ift.tt/1Sxg2JV" target="_blank">Segger J-Link</a> or an<a href="http://ift.tt/1I5zfiZ" target="_blank">STLink/V2</a>), you will also need to install a utility called <a href="http://ift.tt/1Mt7hCm" target="_blank">AdaLink</a>.</p>
<p>AdaLink acts as a simple python-based abstraction layer between various HW debuggers, and the different ARM MCU families that we use at Adafruit.</p>
<p>For installation instructions on AdaLink see the <a href="http://ift.tt/1Mt7hCm" target="_blank">Readme file</a> in the git repository.</p>
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<h1 class="headline"><span id="arduino-ide-setup">Arduino IDE Setup</span></h1>
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<p>Once you have the WICED Feather board support package set up — as described in <strong>Get the WICED BSP</strong> earlier in this guide — you can start compiling code against FeatherLib or update the firmware on your device directly from the Arduino IDE.</p>
<p>To make sure that the Arduino IDE has access to all of the tools, libraries and config data it needs, however, you will first need to make some adjustments in the IDE:</p>
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<h1><span id="install-an-arm-cortex-m3-toolchain" class="anchor-link-target"></span>Install an ARM Cortex M3 Toolchain</h1>
<p>In order to build code for the STM32F205 ARM Cortex M3 MCU you will need to install and appropriate toolchain in the Arduino IDE. Thankfully, this is easy to do!</p>
<p>Simply go to the <strong>Tools </strong>-> <strong>Board </strong>-> <strong>Board Manager</strong> menu item:</p>
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<p>If you don’t already have it installed, download the <strong>Arduino SAM Boards (32-bits ARM Cortex-M3)</strong> board support package:</p>
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<p>This will install a version of GCC and related tools that is aimed at the ARM Cortex M3 mcu, and will allow you to produce machine code the the STM32F205 understands.</p>
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<div class="alert">If you install or update the Arduino SAM ARM Cortex M3 board support package you will need to restart the Arduino IDE for the board support package changes to take effect!</div>
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<h1><span id="board-selection" class="anchor-link-target"></span>Board Selection</h1>
<p>The next thing to do (assuming that you already have the WICED BSP installed on your system, as describe in <strong>Get the WICED BSP</strong> earlier in this guide!) is to make sure that you have <strong>Adafruit WICED Feather</strong> selected as the Board target.</p>
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<div class="alert">Selecting the right board target is critical since the board target is what causes the FeatherLib support files to be included as part of the build process!</div>
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<p>To change the board target, simply click the <strong>Tools > Board</strong> menu item and then select <strong>Adafruit WICED Feather</strong> under the ‘Adafruit Feather Boards’ heading:</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg8kz" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-11_at_01.02.16.png" class="31044-asset img-responsive" src="http://ift.tt/25HStaO" /></a></div>
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<p>The actual position of the board in your menu will depend on your system setup, but it should resemble the following image:</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg5p5" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-11_at_01.02.45.png" class="31045-asset img-responsive" src="http://ift.tt/25HSuLX" /></a></div>
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<h1><span id="setting-the-section" class="anchor-link-target"></span>Setting the ‘Section’</h1>
<p>As described in the System Architecture page in this guide, the WICED Feather is broken up into three separate firmware images: the user code, FeatherLib, and the USB DFU bootloader.</p>
<p>Each of these firmware images exists in a specific section of the flash memory on the STM32F205 MCU, and you can switch between the two user-modifiable sections via the <strong>Tools > Section</strong> menu:</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg8kB" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-11_at_01.02.58.png" class="31047-asset img-responsive" src="http://ift.tt/25HSuLZ" /></a></div>
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<p>The following sections are available in the menu:</p>
<ul>
<li><strong>User Code</strong>: This section (which consists of 128KB flash and 16KB SRAM) is where your user sketches go, which is the project that you compile in the Arduino IDE.  <strong>This is the section you will want to use 99% of the time!</strong></li>
<li><strong>Feather Lib</strong>: This is the library that contains the low level WiFi stack and security layer, manage the RTOS (real time operating system) that schedules different tasks on the system, and does all of the heavy lifting for you.  By selecting ‘Feather Lib’ as the section and then flashing your WICED Feather like you would for a normal project you can either reflash or update the FeatherLib on your hardware.  If you update the WICED Feather BSP and a new version of FeatherLib is available, you would do this once to update your device and then switch back to ‘User Code’.
<ul>
<li><strong>Feather Lib (Release)</strong>: This will flash the latest release version of FeatherLib</li>
<li><strong>Feather Lib (Beta)</strong>: This will flash the latest BETA release of FeatherLib if one is available. If no BETA version is available, this is generally identical to the release files. You should check the FeatherLib version numbers to verify if there is a difference.</li>
</ul>
</li>
<li><strong>Factory Reset</strong>: Selecting this ‘section’ and then flashing your device is a bit of a hack since it won’t actually flash a sketch, but it will use the feather_dfu.py tool to perform a factory reset on your device in case it went off into the weeds somehow.</li>
<li><strong>NVM Reset</strong>: Similar to the factory reset above, selectiing this section and then flashing your device will cause the non-volatile config memory on your WICED Feather to be reset to factory defaults (although the rest of the device, such as the user code, will be left untouched).</li>
</ul>
<p>To flash the appropriate code to the device (or perform a factory reset or NVM reset), you simply need to change the section and click the <strong>Sketch > Upload</strong> tools menu, or click the arrow icon in the Arduino IDE (the second icon from the left below):</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg8kD" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-11_at_01.20.38.png" class="31049-asset img-responsive" src="http://ift.tt/25HStaQ" /></a></div>
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<div class="alert">If you select FeatherLib, Factory Reset or NVM Reset (which require no code compilation themselves) a full project compilation will still take place before FeatherLib is flashed or a reset is performed. The compiled user code will not be used, but the compilation process can’t be avoided due to the nature of sections in the Arduino IDE.</div>
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<h1><span id="selecting-the-serial-port" class="anchor-link-target"></span>Selecting the Serial Port</h1>
<p>By default, two USB CDC serial ports will be enumerated with the WICED Feather.  One serial port will be used for general purpose serial data and is connected to the <strong>Serial Monitor</strong>.  This is the port you should normally select in the Arduino IDE.</p>
<p>The second port that is enumerated is for basic debugging and for future expansion, and enumerates a currently unused AT Parser that only supports a very basic set of commands (for example ‘ATI’ will return some basic information about the module).</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg8kF" target="_blank"><img alt="adafruit_products_WICEDWinCOMPorts.png" class="31476-asset img-responsive" src="http://ift.tt/25HStaW" /></a></div>
<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg5p9" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-11_at_01.27.32.png" class="31052-asset img-responsive" src="http://ift.tt/25HStaY" /></a></div>
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<p>With the right serial port selected (normally the numerically lowest number is the Serial <a href="http://ift.tt/1VXA0mp" itemprop="url" target="_bank" title="Monitor"><strong>Monitor</strong></a> COM port), you can open the <strong>Serial Monitor</strong> and you can send and receive serial data like you would with any other Arduino development board.</p>
<p>On Windows, you can verify which COM port corresponds to which function by opening the Device Manager and examining the list of serial ports. COM35 below is the Serial Monitor port (<strong>WICED Feather Serial</strong>) and COM36 is the AT parser port (<strong>WICED Feather ATParser</strong>).</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/25HStb0" target="_blank"><img alt="adafruit_products_wicedcomports.png" class="31475-asset img-responsive" src="http://ift.tt/1Sxg5Fn" /></a></div>
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<h1><span id="optional-updating-the-bootloader" class="anchor-link-target"></span>Optional: Updating the Bootloader</h1>
<p>While you should never have to update the USB DFU bootloader on your WICED Feather, if you have a <a href="http://ift.tt/1Sxg2JV" target="_blank">Segger J-Link</a> or an<a href="http://ift.tt/1I5zfiZ" target="_blank">STLink/V2</a> you can reflash the normally read-only bootloader from within the Arduino IDE.</p>
<p>A J-Link or STLink is required since this is the only way to talk to the STM32F205 if the bootloader is somehow erased.</p>
<p>To reflash the bootloader hook the SWDIO, SWCLK, RESET and GND pins up to the pins of the same name on the WICED Feather (see the JLink or STLink/V2 pinout to know where to find these pins on your debugger).  If you are using a JLink, make sure to also connect the VTRef pin to 3.3V on the WICED Feather since it needs to know the logic level for the target device.</p>
<p>Select the appropriate debugger from the <strong>Tools > Programmer</strong>menu (only the J-Link or STLink options will work!):</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/25HStb2" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-11_at_01.33.10.png" class="31053-asset img-responsive" src="http://ift.tt/1Sxg5Fp" /></a></div>
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<p>You can then click the <strong>Burn Bootloader</strong> menu entry and the Arduino IDE will attempt to use the JLink or STLink (via<a href="http://ift.tt/1Mt7hCm" target="_blank">AdaLink</a>) to reflash the bootloader for you.</p>
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<h1><span id="compiling-your-sketch" class="anchor-link-target"></span>Compiling your Sketch</h1>
<p>At this point you’re ready to start flashing your projects to the WICED Feather as you would with any other Arduino compatible development board!</p>
<p>If you run into any problems, make sure that the WICED Feather BSP is properly configured, that you have installed the appropriate ARM Cortex M3 toolchain, and that the IDE is setup with the following values:</p>
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<h1 class="headline"><span id="system-architecture">System Architecture</span></h1>
<div class="author"></div>
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<p>One of the key challenges creating the WICED Feather is that it is based on the Broadcom WICED WiFi stack, and due to the license terms we’re unable to release any of the source files.</p>
<p>This poses a bit of a dilemma since we tested almost every embedded WiFi stack out there, and WICED easily climbed to the top in terms of features, performance and reliability.  We want that reliability and speed, but we also want to make sure customers have the flexibility to bring all kind of projects to life as well, without having to sign restrictive license agreements themselves.</p>
<p>So how do we make this available to customers in a way they can use in the real world, without signing NDAs themselves?</p>
<p>The answer wasn’t obvious at first, but <strong>FeatherLib</strong> was the end result of a lot of head scratching and firmware dead ends.</p>
<h1><span id="wiced-wifi-plus-rtos-plus-sdep-equals-featherlib" class="anchor-link-target"></span>WICED WiFi + RTOS + SDEP = FeatherLib</h1>
<p>The proprietary Broadcom WICED WiFi stack is designed around an RTOS (Real Time Operating System), which handles all of the various tasks involved in WiFi, such as async data requests, security and cryptography, etc. (If you’re not familiar with them, an RTOS breaks tasks into ‘threads’, and then shares MCU cycles between those threads, allowing you to effectively multi-task on a single MCU.)</p>
<p>The RTOS and all of the proprietary Broadcom WiFi stack and code runs behind the scenes in a binary black box we call the<strong>FeatherLib</strong> (see the Flash Memory Layout section below for details). By providing a binary black box, we solve the legal hurdles of working with WICED, but this still leaves the problem of exposing the WiFi functionality to end user.</p>
<p>We solved this by essentially ‘wrapping’ every useful function in the WICED stack with a custom command (using an in house protocol called SDEP), and then routing these commands between the Broadcom SDK in FeatherLib and end users. We can freely expose the source related to the SDEP commands (since we wrote 100% of it), while still hiding the proprietary Broadcom functions, header files and structs. The lawyers are happy, and hopefully our customers are too!</p>
<p>By basically reimplementing the entire Broadcom WICED WiFi stack with a new set of SDEP commands and a more focused custom API, you get access to Broadcoms high quality stack, without any of the legal headaches.  The headaches were all on our side reimplementing the wheel just to solve a legal problem. <img alt=":)" class="wp-smiley" src="http://ift.tt/1SzJAcn" style="height: 1em; max-height: 1em;" /></p>
<h1><span id="arduino-user-code" class="anchor-link-target"></span>Arduino User Code</h1>
<p>This left the problem of how to allow users to write code themselves that talks to FeatherLib via SDEP.</p>
<p>Since FeatherLib runs on an RTOS,  we start a single RTOS ‘thread’ at startup that is used for the user code.  FeatherLib will start the Broadcom WiFi stack, and as part of that process it also start the ‘user code’ thread that runs the custom code that you write and compile in the Arduino IDE.</p>
<p>This custom user code is built in the Arduino IDE like you would for any other MCU, and gets written into a dedicate section of flash memory with it’s own chunk of SRAM reserved purely for the user code in Arduino land.</p>
<p>This setup allows you to share the MCU processing time between your own code and the lower level WiFi stack, but the process should normally be invisible to you, and you never really need to worry about the FeatherLib black box.</p>
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<h1><span id="inter-process-communication-sdep" class="anchor-link-target"></span>Inter Process Communication (SDEP)</h1>
<p>Communication between the user code and the Feather lib happens via an in-memory messaging system, sending and receiving commands using a custom protocol we call <strong>SDEP</strong>(Simple Data Exchange Protocol).</p>
<p>An SDEP command is sent to the Feather lib, and a standard response is sent back and interpretted, allowing the two binary blobs to exist entirely independent of each other, and be updated separately.</p>
<p>You normally never need to deal with SDEP commands directly since the commands are all hidden in the public WICED Feather helper classes (AdafruitFeather, AdafruitHTTP, etc.). These helper classes and functions send the SDEP commands for you, and convert the responses into meaningful data.</p>
<p>There is a special AdafruitSDEP helper class that allows you to send SDEP commands directly if the need does every arise, though, and the SDEP commands are all documented elsewhere in this learning guide.</p>
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<h1><span id="flash-memory-layout" class="anchor-link-target"></span>Flash Memory Layout</h1>
<p>To keep things as simple as possible, and to make updates easy, the flash-memory and SRAM on the STM32F205 MCU is broken up into several <strong>Sections</strong>, as shown in the diagram below.</p>
<p>Keeping the sections independent allows you to update the user code without having to recompile and reflash the rest of the system, significantly speeding up build and write times.</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg5Fr" target="_blank"><img alt="adafruit_products_WICEDMemoryMap.png" class="30490-asset img-responsive" src="http://ift.tt/25HSw6t" /></a></div>
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<h2><span id="user-code-128kb-plus-16kb-sram" class="anchor-link-target"></span>User Code (128KB + 16KB SRAM)</h2>
<p>Your own code (‘User Code’) will be compiled directly by the Arduino IDE, and has access to 128KB of flash and 16KB of SRAM.</p>
<h2><span id="feather-lib-832-kb-plus-112kb-sram" class="anchor-link-target"></span>Feather Lib (832 KB + 112KB SRAM)</h2>
<p>The low level WiFi stack from Broadcom (‘Feather Lib’) is provided as a single pre-compiled .hex file that gets flashed to a dedicated location in flash memory on the STM32F205 MCU. Because most of the heavy lifting is done here, it has access to most of the flash and SRAM.</p>
<h2><span id="config-data-32kb" class="anchor-link-target"></span>Config Data (32KB)</h2>
<p>Two identical sets of non-volatile config data are stored in this section, and when any changes are made the bank used is switched to make sure that no data is lost during the updates. Normally you will never access this memory directly, and this is managed by the Feather Lib.</p>
<h2><span id="usb-dfu-bootloader-32kb" class="anchor-link-target"></span>USB DFU Bootloader (32KB)</h2>
<p>This code runs as soon as your device powers up and starts the Feather Lib, and also checks if any User Code is available.</p>
<p>This is what allows you to update the User Code or Feather Lib using USB DFU.</p>
<p>The bootloader code itself can be updated from the Arduino IDE as well, but it requires you have either a Segger J-Link or an STLink/V2 connected to the SWDIO and SWCLK pins on the WICED Feather, and you will normally never need to update the bootloader yourself.</p>
</div>
</div>
<ul>
<li><strong>Board</strong>: Adafruit WICED Feather</li>
<li><strong>Section</strong>: User Code</li>
<li><strong>Serial Port:</strong> Typically the numerically lowest WICED CDC port, but it should be set to the COM port that appears as ‘<strong>WICED Feather Serial</strong>‘ in the Device Manager on Windows where the order of enumeration may change.</li>
</ul>
<p>Then just click the ‘<strong>Upload</strong>‘ arrow icon, and the compilation and USB DFU flashing process should start, which will result in the following output:</p>
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<div class="row-fluid build-image"><a href="http://ift.tt/1Sxg5Ft" target="_blank"><img alt="adafruit_products_Screen_Shot_2016-03-11_at_01.39.56.png" class="31054-asset img-responsive" src="http://ift.tt/25HSuM3" /></a></div>
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<h1 class="headline"><span id="wiced-feather-api">WICED Feather </span></h1>
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<p>In order to simplify the most common activities with the WICED Feather, several helper classes have been added to the board support package.</p>
<p>These helper classes are described below, and detailed explanations of each class can be found later in this guide.</p>
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<h1><span id="adafruitfeather" class="anchor-link-target"></span>AdafruitFeather</h1>
<p>This is the main class you will use to configure the WICED Feather. It contains functions to connect or disconnect to an AP, ping another device, set certificate details when using TLS and HTTPS, as well as a few more specialized commands like some MQTT commands to use the internal MQTT stack in the WICED Feather WiFi stack.</p>
<p>For detailed information see:<a href="http://ift.tt/1Sxg5Fv" target="_blank">AdafruitFeather</a> and <a href="http://ift.tt/25HSw6w" target="_blank">AdafruitFeather: Profiles</a></p>
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<h1><span id="adafruittcp" class="anchor-link-target"></span>AdafruitTCP</h1>
<p>The AdafruitTCP class provides helper functions to open, close and work with TCP based socket connections.  There are convenient callback functions for the socket disconnect events, as well as when data is received, and you can start an open or SSL based connection.</p>
<p>For detailed information see:<a href="http://ift.tt/1Sxg8kL" target="_blank">AdafruitTCP</a> and <a href="http://ift.tt/25HSuM7" target="_blank">AdafruitTCPServer</a></p>
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<h1><span id="adafruitudp" class="anchor-link-target"></span>AdafruitUDP</h1>
<p>The AdafruitUDP class provides helper functions to open, close and work with UDP based socket connections. There is a callback function to handle data receive events.</p>
<p>For detailed information see: <a href="http://ift.tt/1Sxg5Fx" target="_blank">AdafruitUDP</a></p>
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<h1><span id="adafruithttp" class="anchor-link-target"></span>AdafruitHTTP</h1>
<p>This class provides a convenient wrapper for the most common HTTP activities, including a callback for when data is received, and helpers to deal with response headers and and TLS (for secure HTTPS connections).</p>
<p>For detailed information see: <a href="http://ift.tt/25HSuM9" target="_blank">AdafruitHTTP</a></p>
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<h1><span id="adafruitmqtt" class="anchor-link-target"></span>AdafruitMQTT</h1>
<p>This class provides a basic MQTT client, allowing you to connect to remote MQTT brokers over a standard TCP connection.  You can establish open or secure connections to the MQTT broker, publish to topics, subscribe to up to <strong>eight</strong> topics (including using subscribe wildcards like ‘adafruit/+’ to subscribe to all changes above ‘/adafruit’), and capture subscribe events via a convenient callback handler.</p>
<p>For detailed information see:<a href="http://ift.tt/1Sxg8kN" target="_blank">AdafruitMQTT</a> and <a href="http://ift.tt/25HSw6y" target="_blank">AdafruitMQTTTopic</a></p>
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<h1><span id="adafruitaio" class="anchor-link-target"></span>AdafruitAIO</h1>
<p>The AdafruitAIO family is a specialized version of the AdafruitMQTT classes, and is designed to work specifically with<a href="http://io.adafruit.com/" target="_blank">Adafruit IO</a>.</p>
<p>For detailed information see: <a href="http://ift.tt/22YgGHJ" target="_blank">AdafruitAIO</a> and <a href="http://ift.tt/25HSuMb" target="_blank">AdafruitAIOFeed</a></p>
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<h1><span id="adafruitsdep" class="anchor-link-target"></span>AdafruitSDEP</h1>
<p>This class handles sending and receiving SDEP messages between the user code and the lower level feather lib.  Normally you will never need to send SDEP messages yourself, and you will use the higher level helper classes mentionned elsewhere on this page, but AdafruitHTTP inherits from AdafruitSDEP, so you have access to all of the functions in AdafruitSDEP via the standard <strong>Feather</strong> object, such as<strong>Feather.sdep_n(…)</strong>, <strong>Feather.errno()</strong>, etc.</p>
<p>For detailed information see: <a href="http://ift.tt/1Sxg8kP" target="_blank">AdafruitSDEP</a></p>
</div>
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<h1><span id="client-api" class="anchor-link-target"></span>Client API</h1>
<p>The WICED Feather board support package also includes support for the standard <a href="http://ift.tt/1T2i1aP" target="_blank">Arduino Client</a> interface, which is common to almost every networking device in the Arduino family. The Adafruit helper classes mentionned above expose many standard Client functions, and you should be able to adapt Client based example code to the WICED Feather with minimal changes and effort.</p>
<p>For detailed information see: Client</p>
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