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HOW TO CONTROL ARDUINO BOARD USING AN ANDROID PHONE

Wall's Corners

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Title: HOW TO CONTROL ARDUINO BOARD USING AN ANDROID PHONE
Author: Wall's Corners
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In this tutorial you’ll learn how to use a bluetooth module and MIT’s app inventor to create a wireless serial link between an android phone...

<p>In this tutorial you’ll learn how to use a bluetooth module and MIT’s app inventor to create a wireless serial link between an android phone and an <a href="http://bit.ly/1rVsIo6" itemprop="url" target="_bank" title="Using Arduino with Parts and Sensors – Solar Powered Arduino (Part 1)"><strong>arduino</strong></a> board.</p>
<p>Here is a short video showing an example app I created. I’ll describe how to do the wiring, write an <a href="http://bit.ly/1OAQGd1" itemprop="url" target="_bank" title="Arduino Wars: Genuino vs the Phantom Arduino and the Clones"><strong>arduino</strong></a> sketch that can accept basic commands and send them and how to write the app itself. I asume you’re already familiar with some of the basics, you made a few arduino projects and are familiar with the arduino IDE. If you have attempted serial communication with the arduino board everything should be fully comprehensible. If you have any problems or questions feel free to ask them in the comments section.</p>
<p><iframe width="678" height="381" src="https://www.youtube.com/embed/41MRGjdVIMQ?feature=oembed" frameborder="0" allowfullscreen=""></iframe></p>
<p>…and here is an example of receiving the data from the arduino board on the mobile. The temperature sensor connected to the arduino board is a ds18b20 sensor. Just to show how awesome app inventor is I added text to speech functionality – the app says the temperature every 15 seconds. The arduino code and the app is described in more detail in steps 4,5 and 6.</p>
<p><iframe width="678" height="381" src="https://www.youtube.com/embed/cwFBOEtaORM?feature=oembed" frameborder="0" allowfullscreen=""></iframe></p>
<p> </p>
<h2 id="step1" class="step-title">Step 1: Wiring & part list</h2>
<div id="photoset-SADN9WFHD4VPR10" class="photoset" data-item-id="SADN9WFHD4VPR10" data-item-url="http://bit.ly/1XNyu8Z">
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<div class="photoset-item photoset-image"><a class="photoset-link" data-fancybox-group="photoset-gallery-SADN9WFHD4VPR10" data-fancybox-href="http://bit.ly/28rV7Tt" href="http://bit.ly/1U0UaI1" target="_blank"><img alt="Picture of Wiring & part list" data-image-id="FI6B1WKHD7TZGDS" data-large="http://bit.ly/28rV7Tt" data-medium="http://bit.ly/1U0UpTt" data-notes="[]" data-orig-height="1236" data-orig-width="1152" data-original="http://bit.ly/1U0UpTt" data-original-image="http://bit.ly/1XNyw0t" data-pin-no-hover="true" data-small="http://bit.ly/1U0U03r" src="http://bit.ly/1U0UpTt" /></a></div>
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<div class="step-body">The circuit is as simple as it gets so you probably already have most of them.
<p>You will need:<br />
– arduino board<br />
– bluetooth serial module (I used a btm222 module on a breakout board with an inbuilt regulator )<br />
– an LED<br />
– resistor (100ohm)<br />
– wires<br />
– breadboard</p>
<p>The only problematic part here is the bluetooth module. There are different modules all over the internet so be sure you check the pinout in the datasheet of the one you get as it can differ.</p>
<p>Also notice that there are two general classes of bluetooth modules:<br />
Class 1 has range of about 100 meter (300 feet)<br />
Class 2 has range of about 10meter (30 feet)<br />
In case you’re wondering they are entirely compatible and you can only get 100 meter range if both of the devices (ie the mobile and the serial module) are class one. If one of it is class 1 the maximum range is lower.</p>
<p>The bluetooth serial module I got has the following pins from left to right (ground, RX, TX, not connected, VCC). Obviously ground and VCC goes respectively to ground and +5V pin on the arduino board. Since we will be receiveing the data through the module and then in turn sending it to the arduino board we only need to use the TX pin on the module. Run a wire from that pin to the RX pin on the arduino board. The Led is controlled through PIN 2 on the arduino.</p>
</div>
<div class="step-body"></div>
<div class="step-body">
<h2 id="step2" class="step-title">Step 2: Arduino code</h2>
<div class="step-body">Below is an arduino code I used. Feel free to modify it.
<p>The important aspect here is the baud rate – make sure it matches the baud rate of your module – check the datasheet or use AT commands to do it.</p>
<p>const int ledPin = 2;      // the pin that the <a href="http://bit.ly/1WT6RcH" itemprop="url" target="_bank" title="LED"><strong>LED</strong></a> is attached to<br />
byte serialA;<br />
void setup()<br />
{<br />
// initialize the serial communication:<br />
Serial.begin(19200); //baud rate – make sure it matches that of the module you got:<br />
// initialize the ledPin as an output:<br />
pinMode(ledPin, OUTPUT);<br />
}</p>
<p>void loop() {</p>
<p>if (Serial.available() > 0) {serialA = Serial.read();Serial.println(serialA);}</p>
<p>switch (serialA) {<br />
case 1:<br />
digitalWrite(ledPin, HIGH);<br />
break;<br />
case 2:<br />
digitalWrite(ledPin, LOW);<br />
break;<br />
case 3:digitalWrite(ledPin, HIGH);<br />
delay(100);<br />
digitalWrite(ledPin, LOW);<br />
delay(100);<br />
default:</p>
<p>break;<br />
}</p>
<p>}</p>
</div>
</div>
<div class="step-body">
<h2 id="step3" class="step-title">Step 3: The app itself & App inventor</h2>
<div id="photoset-SHKQPAKHD4VPR12" class="photoset" data-item-id="SHKQPAKHD4VPR12" data-item-url="http://bit.ly/1XNyshh">
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<div class="photoset-item photoset-image"><a class="photoset-link" data-fancybox-group="photoset-gallery-SHKQPAKHD4VPR12" data-fancybox-href="http://bit.ly/1XNzfyM" href="http://bit.ly/1U0Us1B" target="_blank"><img alt="Picture of The app itself & App inventor" data-image-id="FPK8FWNHD4VFWB1" data-large="http://bit.ly/1XNzfyM" data-medium="http://bit.ly/1U0UK8E" data-notes="[]" data-orig-height="737" data-orig-width="1012" data-original="http://bit.ly/1U0UK8E" data-original-image="http://bit.ly/28rWa61" data-pin-no-hover="true" data-small="http://bit.ly/24Hzfis" src="http://bit.ly/1U0UK8E" /></a></div>
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<div class="step-body">If all you want is to get the app and see it running then download the app then upload it to your phone.<br />
Download at -> http://bit.ly/28rWth8
<p>Your phone has to be set to allow apps from outside the android market/google play to be able to download them – so check the settings on your mobile.</p>
<p>Now if you want to modify the app go to >><br />
<a href="http://bit.ly/1U0U8jw" rel="nofollow" target="_blank">http://bit.ly/1U0U8jw</a><br />
to find out how to prepare your computer and install App inventor software. Once you have it running I suggest you do at least one or two of their basic tutorials.</p>
<p>Below is the source of the app that I used. You can upload it to the app inventor and then upload to your phone or modify it.<br />
http://bit.ly/28rWth8</p>
</div>
</div>
<div class="step-body">
<h2 id="step4" class="step-title">Step 4: Receiving data from arduino</h2>
<div class="step-body">This step presents an example on how to receive data from the arduino board.
<p>I decided to make something useful so I chose a ds18b20 temperature sensor. The arduino board communicates with the sensor using 1 wire interface, calculates the temperature with the help of OneWire library for arduino and sends the readings through the bluetooth module every 500 ms.</p>
<p>The app checks every 500 ms if there is any data available from the serial port. If data is present it is read and displayed on the screen. Additionally, there is an option to activate text to speech function and make the app say the temperature readings every 15 seconds.</p>
</div>
<div class="step-body">
<h2 id="step5" class="step-title">Step 5: Remote sensor – arduino code</h2>
<div class="step-body">The arduino code<br />
Mind you that you need a OneWire library – you can find a link to it here:<br />
http://bit.ly/1U0UMgM
<p>arduino code >>>>>>></p>
<p>#include <OneWire.h><br />
int DS18S20_Pin = 2; //DS18S20 Signal pin on digital 2</p>
<p>//Temperature chip i/o<br />
OneWire ds(DS18S20_Pin); // on digital pin 2</p>
<p>void setup()<br />
{<br />
// initialize the serial communication:<br />
Serial.begin(19200);<br />
// initialize the ledPin as an output:</p>
<p>}</p>
<p>void loop() {</p>
<p>float temperature = getTemp();<br />
Serial.println(temperature); delay (500);</p>
<p>}</p>
<p>float getTemp(){<br />
//returns the temperature from one DS18S20 in DEG Celsius</p>
<p>byte data[12];<br />
byte addr[8];</p>
<p>if ( !ds.search(addr)) {<br />
//no more sensors on chain, reset search<br />
ds.reset_search();<br />
return -100;<br />
}</p>
<p>if ( OneWire::crc8( addr, 7) != addr[7]) {<br />
Serial.println(“CRC is not valid!”);<br />
return -1000;<br />
}</p>
<p>if ( addr[0] != 0x10 && addr[0] != 0x28) {<br />
Serial.print(“Device is not recognized”);<br />
return -1000;<br />
}</p>
<p>ds.reset();<br />
ds.select(addr);<br />
ds.write(0x44,1); // start conversion, with parasite power on at the end</p>
<p>byte present = ds.reset();<br />
ds.select(addr);<br />
ds.write(0xBE); // Read Scratchpad</p>
<p>for (int i = 0; i < 9; i++) {<br />
data[i] = ds.read();<br />
}</p>
<p>ds.reset_search();</p>
<p>byte MSB = data[1];<br />
byte LSB = data[0];</p>
<p>float tempRead = ((MSB << 8) | LSB);<br />
float TemperatureSum = tempRead / 16;</p>
<p>return TemperatureSum;}</p>
</div>
<div class="step-body">
<h2 id="step6" class="step-title">Step 6: Receiving data – the application side</h2>
<div class="step-body">Here you can find links to the app that receives temperature reading. There is also a source code that can be uploaded into MIT’s app inventor (when you’re in ‘my projects’ click the button ‘More Actions’ – you have an option ‘Upload Source’)
<p>feel free to modify it <img alt="😉" class="wp-smiley" src="http://bit.ly/1XRgdUu" style="height: 1em; max-height: 1em;" /></p>
<p>The application >><br />
http://bit.ly/1U0UwP1</p>
<p>The source file >><br />
http://bit.ly/1XNzhXq</p>
<p>I’ll try to add something more descriptive soon, but here are some tips you might find useful if you’re trying to create your own app: Make sure you understand the terms ‘delimiter byte’, know how to set it from MIT’s app inventor and that it is a byte so be careful what data types you use. Also it seems that there is no serial timeout function implemented in the app inventor so sending data more often than receiving it can cause the app to crash (probably because there isn’t anything to flush the buffer)</p>
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<div class="step-body"></div>
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HOW TO CONTROL ARDUINO BOARD USING AN ANDROID PHONE

In this tutorial you’ll learn how to use a bluetooth module and MIT’s app inventor to create a wireless serial link between an android phone...

HOW TO CONTROL ARDUINO BOARD USING AN ANDROID PHONE

Wall's Corners

Link Author

Title: HOW TO CONTROL ARDUINO BOARD USING AN ANDROID PHONE
Author: Wall's Corners
Rating 5 of 5 Des:

In this tutorial you’ll learn how to use a bluetooth module and MIT’s app inventor to create a wireless serial link between an android phone...

<p>In this tutorial you’ll learn how to use a bluetooth module and MIT’s app inventor to create a wireless serial link between an android phone and an <a href="http://bit.ly/1rVsIo6" itemprop="url" target="_bank" title="Using Arduino with Parts and Sensors – Solar Powered Arduino (Part 1)"><strong>arduino</strong></a> board.</p>
<p>Here is a short video showing an example app I created. I’ll describe how to do the wiring, write an <a href="http://bit.ly/1OAQGd1" itemprop="url" target="_bank" title="Arduino Wars: Genuino vs the Phantom Arduino and the Clones"><strong>arduino</strong></a> sketch that can accept basic commands and send them and how to write the app itself. I asume you’re already familiar with some of the basics, you made a few arduino projects and are familiar with the arduino IDE. If you have attempted serial communication with the arduino board everything should be fully comprehensible. If you have any problems or questions feel free to ask them in the comments section.</p>
<p><iframe width="678" height="381" src="https://www.youtube.com/embed/41MRGjdVIMQ?feature=oembed" frameborder="0" allowfullscreen=""></iframe></p>
<p>…and here is an example of receiving the data from the arduino board on the mobile. The temperature sensor connected to the arduino board is a ds18b20 sensor. Just to show how awesome app inventor is I added text to speech functionality – the app says the temperature every 15 seconds. The arduino code and the app is described in more detail in steps 4,5 and 6.</p>
<p><iframe width="678" height="381" src="https://www.youtube.com/embed/cwFBOEtaORM?feature=oembed" frameborder="0" allowfullscreen=""></iframe></p>
<p> </p>
<h2 id="step1" class="step-title">Step 1: Wiring & part list</h2>
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<div class="photoset-item photoset-image"><a class="photoset-link" data-fancybox-group="photoset-gallery-SADN9WFHD4VPR10" data-fancybox-href="http://bit.ly/28rV7Tt" href="http://bit.ly/1U0UaI1" target="_blank"><img alt="Picture of Wiring & part list" data-image-id="FI6B1WKHD7TZGDS" data-large="http://bit.ly/28rV7Tt" data-medium="http://bit.ly/1U0UpTt" data-notes="[]" data-orig-height="1236" data-orig-width="1152" data-original="http://bit.ly/1U0UpTt" data-original-image="http://bit.ly/1XNyw0t" data-pin-no-hover="true" data-small="http://bit.ly/1U0U03r" src="http://bit.ly/1U0UpTt" /></a></div>
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<div class="photoset-item photoset-image"><a class="photoset-link" data-fancybox-group="photoset-gallery-SADN9WFHD4VPR10" data-fancybox-href="http://bit.ly/1U0THpw" href="http://bit.ly/1XNzslF" target="_blank"><img alt="BTserialModule.JPG" class="lazy-img" data-image-id="FRR8340HD4VFIGK" data-large="http://bit.ly/1U0THpw" data-medium="http://bit.ly/1XNygPg" data-notes="[]" data-orig-height="211" data-orig-width="655" data-original="http://bit.ly/1XNygPg" data-original-image="http://bit.ly/1U0TouJ" data-pin-no-hover="true" data-small="http://bit.ly/1XNyJRz" src="http://bit.ly/1XNygPg" /></a></div>
</div>
</div>
</div>
<div class="step-body">The circuit is as simple as it gets so you probably already have most of them.
<p>You will need:<br />
– arduino board<br />
– bluetooth serial module (I used a btm222 module on a breakout board with an inbuilt regulator )<br />
– an LED<br />
– resistor (100ohm)<br />
– wires<br />
– breadboard</p>
<p>The only problematic part here is the bluetooth module. There are different modules all over the internet so be sure you check the pinout in the datasheet of the one you get as it can differ.</p>
<p>Also notice that there are two general classes of bluetooth modules:<br />
Class 1 has range of about 100 meter (300 feet)<br />
Class 2 has range of about 10meter (30 feet)<br />
In case you’re wondering they are entirely compatible and you can only get 100 meter range if both of the devices (ie the mobile and the serial module) are class one. If one of it is class 1 the maximum range is lower.</p>
<p>The bluetooth serial module I got has the following pins from left to right (ground, RX, TX, not connected, VCC). Obviously ground and VCC goes respectively to ground and +5V pin on the arduino board. Since we will be receiveing the data through the module and then in turn sending it to the arduino board we only need to use the TX pin on the module. Run a wire from that pin to the RX pin on the arduino board. The Led is controlled through PIN 2 on the arduino.</p>
</div>
<div class="step-body"></div>
<div class="step-body">
<h2 id="step2" class="step-title">Step 2: Arduino code</h2>
<div class="step-body">Below is an arduino code I used. Feel free to modify it.
<p>The important aspect here is the baud rate – make sure it matches the baud rate of your module – check the datasheet or use AT commands to do it.</p>
<p>const int ledPin = 2;      // the pin that the <a href="http://bit.ly/1UhB2tm" itemprop="url" target="_bank" title="LED"><strong>LED</strong></a> is attached to<br />
byte serialA;<br />
void setup()<br />
{<br />
// initialize the serial communication:<br />
Serial.begin(19200); //baud rate – make sure it matches that of the module you got:<br />
// initialize the ledPin as an output:<br />
pinMode(ledPin, OUTPUT);<br />
}</p>
<p>void loop() {</p>
<p>if (Serial.available() > 0) {serialA = Serial.read();Serial.println(serialA);}</p>
<p>switch (serialA) {<br />
case 1:<br />
digitalWrite(ledPin, HIGH);<br />
break;<br />
case 2:<br />
digitalWrite(ledPin, LOW);<br />
break;<br />
case 3:digitalWrite(ledPin, HIGH);<br />
delay(100);<br />
digitalWrite(ledPin, LOW);<br />
delay(100);<br />
default:</p>
<p>break;<br />
}</p>
<p>}</p>
</div>
</div>
<div class="step-body">
<h2 id="step3" class="step-title">Step 3: The app itself & App inventor</h2>
<div id="photoset-SHKQPAKHD4VPR12" class="photoset" data-item-id="SHKQPAKHD4VPR12" data-item-url="http://bit.ly/1XNyshh">
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<div class="photoset-item photoset-image"><a class="photoset-link" data-fancybox-group="photoset-gallery-SHKQPAKHD4VPR12" data-fancybox-href="http://bit.ly/1XNzfyM" href="http://bit.ly/1U0Us1B" target="_blank"><img alt="Picture of The app itself & App inventor" data-image-id="FPK8FWNHD4VFWB1" data-large="http://bit.ly/1XNzfyM" data-medium="http://bit.ly/1U0UK8E" data-notes="[]" data-orig-height="737" data-orig-width="1012" data-original="http://bit.ly/1U0UK8E" data-original-image="http://bit.ly/28rWa61" data-pin-no-hover="true" data-small="http://bit.ly/1U0TRNt" src="http://bit.ly/1U0UK8E" /></a></div>
</div>
</div>
</div>
<div class="step-body">If all you want is to get the app and see it running then download the app then upload it to your phone.<br />
Download at -> http://bit.ly/1XNywxx
<p>Your phone has to be set to allow apps from outside the android market/google play to be able to download them – so check the settings on your mobile.</p>
<p>Now if you want to modify the app go to >><br />
<a href="http://bit.ly/1U0U8jw" rel="nofollow" target="_blank">http://bit.ly/1U0U8jw</a><br />
to find out how to prepare your computer and install App inventor software. Once you have it running I suggest you do at least one or two of their basic tutorials.</p>
<p>Below is the source of the app that I used. You can upload it to the app inventor and then upload to your phone or modify it.<br />
http://bit.ly/28rWth8</p>
</div>
</div>
<div class="step-body">
<h2 id="step4" class="step-title">Step 4: Receiving data from arduino</h2>
<div class="step-body">This step presents an example on how to receive data from the arduino board.
<p>I decided to make something useful so I chose a ds18b20 temperature sensor. The arduino board communicates with the sensor using 1 wire interface, calculates the temperature with the help of OneWire library for arduino and sends the readings through the bluetooth module every 500 ms.</p>
<p>The app checks every 500 ms if there is any data available from the serial port. If data is present it is read and displayed on the screen. Additionally, there is an option to activate text to speech function and make the app say the temperature readings every 15 seconds.</p>
</div>
<div class="step-body">
<h2 id="step5" class="step-title">Step 5: Remote sensor – arduino code</h2>
<div class="step-body">The arduino code<br />
Mind you that you need a OneWire library – you can find a link to it here:<br />
http://bit.ly/1U0UMgM
<p>arduino code >>>>>>></p>
<p>#include <OneWire.h><br />
int DS18S20_Pin = 2; //DS18S20 Signal pin on digital 2</p>
<p>//Temperature chip i/o<br />
OneWire ds(DS18S20_Pin); // on digital pin 2</p>
<p>void setup()<br />
{<br />
// initialize the serial communication:<br />
Serial.begin(19200);<br />
// initialize the ledPin as an output:</p>
<p>}</p>
<p>void loop() {</p>
<p>float temperature = getTemp();<br />
Serial.println(temperature); delay (500);</p>
<p>}</p>
<p>float getTemp(){<br />
//returns the temperature from one DS18S20 in DEG Celsius</p>
<p>byte data[12];<br />
byte addr[8];</p>
<p>if ( !ds.search(addr)) {<br />
//no more sensors on chain, reset search<br />
ds.reset_search();<br />
return -100;<br />
}</p>
<p>if ( OneWire::crc8( addr, 7) != addr[7]) {<br />
Serial.println(“CRC is not valid!”);<br />
return -1000;<br />
}</p>
<p>if ( addr[0] != 0x10 && addr[0] != 0x28) {<br />
Serial.print(“Device is not recognized”);<br />
return -1000;<br />
}</p>
<p>ds.reset();<br />
ds.select(addr);<br />
ds.write(0x44,1); // start conversion, with parasite power on at the end</p>
<p>byte present = ds.reset();<br />
ds.select(addr);<br />
ds.write(0xBE); // Read Scratchpad</p>
<p>for (int i = 0; i < 9; i++) {<br />
data[i] = ds.read();<br />
}</p>
<p>ds.reset_search();</p>
<p>byte MSB = data[1];<br />
byte LSB = data[0];</p>
<p>float tempRead = ((MSB << 8) | LSB);<br />
float TemperatureSum = tempRead / 16;</p>
<p>return TemperatureSum;}</p>
</div>
<div class="step-body">
<h2 id="step6" class="step-title">Step 6: Receiving data – the application side</h2>
<div class="step-body">Here you can find links to the app that receives temperature reading. There is also a source code that can be uploaded into MIT’s app inventor (when you’re in ‘my projects’ click the button ‘More Actions’ – you have an option ‘Upload Source’)
<p>feel free to modify it <img alt="😉" class="wp-smiley" src="http://bit.ly/1XRgdUu" style="height: 1em; max-height: 1em;" /></p>
<p>The application >><br />
http://bit.ly/1U0UwP1</p>
<p>The source file >><br />
http://bit.ly/1XNzhXq</p>
<p>I’ll try to add something more descriptive soon, but here are some tips you might find useful if you’re trying to create your own app: Make sure you understand the terms ‘delimiter byte’, know how to set it from MIT’s app inventor and that it is a byte so be careful what data types you use. Also it seems that there is no serial timeout function implemented in the app inventor so sending data more often than receiving it can cause the app to crash (probably because there isn’t anything to flush the buffer)</p>
</div>
<div class="step-body"></div>
</div>
</div>
</div>
<p><span style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 17px;"> </span></p>
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View more at: <a href="http://bit.ly/1XReQFr">http://bit.ly/1XReQFr</a>

HOW TO CONTROL ARDUINO BOARD USING AN ANDROID PHONE

In this tutorial you’ll learn how to use a bluetooth module and MIT’s app inventor to create a wireless serial link between an android phone...

Arduino Street Traffic Light – Breadboard Edition

Wall's Corners

Link Author

Title: Arduino Street Traffic Light – Breadboard Edition
Author: Wall's Corners
Rating 5 of 5 Des:

Build a simple Arduino powered Traffic Light with us! This instructable is meant to walk you through almost every step, but there are a fe...

<div class="step-container">
<div class="step-body">Build a simple <a href="http://bit.ly/1XReOgM" itemprop="url" target="_bank" title="Arduino"><strong>Arduino</strong></a> powered Traffic Light with us! This instructable is meant to walk you through almost every step, but there are a few assumptions. Read over the intro and the first step to make sure you are fully prepared! This is the breadboard version, a more realistic traffic <a href="http://bit.ly/1T1Ll2n" itemprop="url" target="_bank" title="Create your own musical light show with Raspberry Pi"><strong>light</strong></a> will be generated soon. <strong>Please leave comments – tell us if things are confusing</strong>!
<p><strong>Supplies Needed:</strong><br />
1 x Computer with Internet Access<br />
1 x Arduino Uno<br />
1 x USB A/B Cable for connecting the Arduino to your PC<br />
1 x Breadboard (Half-Size, with Voltage Rails)<br />
1 x Red LED<br />
1 x Yellow LED<br />
1 x Green LED<br />
3 x 100 Ohm Resistors (Brown Black Brown)<br />
4 x Breadboard Wires (22 AWG, approx. 6+ inches in length)</p>
<p><strong>Other Helpful Things:</strong><br />
– Good lighting<br />
– A clean workspace<br />
– An hour of your time<br />
– Someone awesome to work with</p>
<p><strong>Missing Something?</strong><br />
– Check out hackerspaces.org for a local place for tools, supplies, etc.<br />
– Near Ann Arbor, MI? We have all the supplies needed to do this instructable at our hackerspace “All Hands Active”<br />
– Radioshack, <a href="http://bit.ly/1XRf2Vh" rel="nofollow" target="_blank">AdaFruit</a>, <a href="http://bit.ly/1RXxOF6" rel="nofollow" target="_blank">SparkFun</a>, <a href="http://bit.ly/1XFAvE3" rel="nofollow" target="_blank">Jameco</a>, are just a few resources that will have all the needed items.</p>
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<p><strong>You wanted a smarter traffic light?</strong><br />
– That’s our next instructable, stay tuned!</p>
</div>
</div>
<div class="step-container">
<h2 id="step1" class="step-title">Step 1: Set Up the Arduino Environment</h2>
<div id="photoset-SKU417ZHH2VKK1D" class="photoset" data-item-id="SKU417ZHH2VKK1D" data-item-url="http://bit.ly/1RXwlyB">
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<div class="photoset-item photoset-image"><a class="photoset-link" data-fancybox-group="photoset-gallery-SKU417ZHH2VKK1D" data-fancybox-href="http://bit.ly/1RXxR3K" href="http://bit.ly/1XFBcgE" target="_blank"><img alt="Picture of Set Up the Arduino Environment" data-image-id="FVELA93HH2VNWZX" data-large="http://bit.ly/1RXxR3K" data-medium="http://bit.ly/1XFAOyM" data-notes="[]" data-orig-height="455" data-orig-width="731" data-original="http://bit.ly/1XFAOyM" data-original-image="http://bit.ly/1RXx178" data-pin-no-hover="true" data-small="http://bit.ly/1taBz5w" src="http://bit.ly/1XFAOyM" /></a></div>
</div>
</div>
</div>
<div class="step-body">This instructable makes many assumptions! Some people like to call these “prerequisites”. In order to make sure you get the most out of this instructable, you should have:<br />
– The <a href="http://bit.ly/2730fwR" rel="nofollow" target="_blank">Arduino Software downloaded</a> and installed on your computer.<br />
– Plugged in and tested your Arduino by following <a href="http://bit.ly/1XFBoN3" rel="nofollow" target="_blank">the installation guide</a> appropriate for your computer.<br />
– Approximately one hour of time to spare, and a nice clean workspace with plenty of lighting.
<p>Mission Complete? Continue on!</p>
<p>Image Source:  The Getting Started w/Arduino Guide</p>
</div>
</div>
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Arduino Street Traffic Light – Breadboard Edition

Build a simple Arduino powered Traffic Light with us! This instructable is meant to walk you through almost every step, but there are a fe...

Arduino Street Traffic Light – Breadboard Edition

Wall's Corners

Link Author

Title: Arduino Street Traffic Light – Breadboard Edition
Author: Wall's Corners
Rating 5 of 5 Des:

Build a simple Arduino powered Traffic Light with us! This instructable is meant to walk you through almost every step, but there are a fe...

<div class="step-container">
<div class="step-body">Build a simple <a href="http://bit.ly/26nCm2w" itemprop="url" target="_bank" title="Arduino"><strong>Arduino</strong></a> powered Traffic Light with us! This instructable is meant to walk you through almost every step, but there are a few assumptions. Read over the intro and the first step to make sure you are fully prepared! This is the breadboard version, a more realistic traffic <a href="http://bit.ly/1T1Ll2n" itemprop="url" target="_bank" title="Create your own musical light show with Raspberry Pi"><strong>light</strong></a> will be generated soon. <strong>Please leave comments – tell us if things are confusing</strong>!
<p><strong>Supplies Needed:</strong><br />
1 x Computer with Internet Access<br />
1 x Arduino Uno<br />
1 x USB A/B Cable for connecting the Arduino to your PC<br />
1 x Breadboard (Half-Size, with Voltage Rails)<br />
1 x Red LED<br />
1 x Yellow LED<br />
1 x Green LED<br />
3 x 100 Ohm Resistors (Brown Black Brown)<br />
4 x Breadboard Wires (22 AWG, approx. 6+ inches in length)</p>
<p><strong>Other Helpful Things:</strong><br />
– Good lighting<br />
– A clean workspace<br />
– An hour of your time<br />
– Someone awesome to work with</p>
<p><strong>Missing Something?</strong><br />
– Check out hackerspaces.org for a local place for tools, supplies, etc.<br />
– Near Ann Arbor, MI? We have all the supplies needed to do this instructable at our hackerspace “All Hands Active”<br />
– Radioshack, <a href="http://bit.ly/1XRf2Vh" rel="nofollow" target="_blank">AdaFruit</a>, <a href="http://bit.ly/1RXxOF6" rel="nofollow" target="_blank">SparkFun</a>, <a href="http://bit.ly/1XFAvE3" rel="nofollow" target="_blank">Jameco</a>, are just a few resources that will have all the needed items.</p>
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<p><strong>You wanted a smarter traffic light?</strong><br />
– That’s our next instructable, stay tuned!</p>
</div>
</div>
<div class="step-container">
<h2 id="step1" class="step-title">Step 1: Set Up the Arduino Environment</h2>
<div id="photoset-SKU417ZHH2VKK1D" class="photoset" data-item-id="SKU417ZHH2VKK1D" data-item-url="http://bit.ly/1RXwlyB">
<div class="photoset-row cols-1">
<div class="photoset-cell image-cell">
<div class="photoset-item photoset-image"><a class="photoset-link" data-fancybox-group="photoset-gallery-SKU417ZHH2VKK1D" data-fancybox-href="http://bit.ly/1RXxR3K" href="http://bit.ly/1XFBcgE" target="_blank"><img alt="Picture of Set Up the Arduino Environment" data-image-id="FVELA93HH2VNWZX" data-large="http://bit.ly/1RXxR3K" data-medium="http://bit.ly/1XFAOyM" data-notes="[]" data-orig-height="455" data-orig-width="731" data-original="http://bit.ly/1XFAOyM" data-original-image="http://bit.ly/1RXx178" data-pin-no-hover="true" data-small="http://bit.ly/1XFAaRU" src="http://bit.ly/1XFAOyM" /></a></div>
</div>
</div>
</div>
<div class="step-body">This instructable makes many assumptions! Some people like to call these “prerequisites”. In order to make sure you get the most out of this instructable, you should have:<br />
– The <a href="http://bit.ly/2730fwR" rel="nofollow" target="_blank">Arduino Software downloaded</a> and installed on your computer.<br />
– Plugged in and tested your Arduino by following <a href="http://bit.ly/1XFBoN3" rel="nofollow" target="_blank">the installation guide</a> appropriate for your computer.<br />
– Approximately one hour of time to spare, and a nice clean workspace with plenty of lighting.
<p>Mission Complete? Continue on!</p>
<p>Image Source:  The Getting Started w/Arduino Guide</p>
</div>
</div>
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View more at: <a href="http://bit.ly/1XReQFr">http://bit.ly/1XReQFr</a>

Arduino Street Traffic Light – Breadboard Edition

Build a simple Arduino powered Traffic Light with us! This instructable is meant to walk you through almost every step, but there are a fe...

Using Arduino with Parts and Sensors Infrared Remote Control (Last Part)

Wall's Corners

Link Author

Title: Using Arduino with Parts and Sensors Infrared Remote Control (Last Part)
Author: Wall's Corners
Rating 5 of 5 Des:

we learned how to use the infrared receiver module and an infrared LED. This time, let’s put what we’ve learned into practice by creating a ...

<p>we learned how to use the infrared receiver module and an infrared LED. This time, let’s put what we’ve learned into practice by creating a “smart controller” that will be used as a remote control for our home appliances. I think that everybody has several remote controls in your home. When I did this project, I gathered all the remote controls in my home.</p>
<h2>Today’s Electronic Recipe</h2>
<p><strong>Expected time to complete: 90 minutes<br />
Parts needed:</strong></p>
<ul>
<li>Arduino (Arduino UNO R3) <a href="http://ift.tt/19qjkOK" target="_blank">http://ift.tt/19qjkOK</a></li>
<li>Breadboard <a href="http://ift.tt/1z7Tzip" target="_blank">http://ift.tt/1z7Tzip</a></li>
<li>Infrared remote control receiver module SPS-440-1 (38kHz)</li>
<li>5mm infrared LED OSI5LA5113A <a href="http://ift.tt/1r3ihhI" target="_blank">http://ift.tt/1r3ihhI</a></li>
<li>CDS sensor (light sensor) <a href="http://ift.tt/1XLTCbZ" target="_blank">http://ift.tt/1XLTCbZ</a></li>
<li>Tact switch <a href="http://ift.tt/1r3ijpV" target="_blank">http://ift.tt/1r3ijpV</a></li>
<li>Resistor (220Ω)</li>
</ul>
<h2>Smart <a href="http://ift.tt/1XD45pW" target="_bank" title="Controller"><strong>Controller</strong></a> Specifications</h2>
<p>Let’s first determine the specifications.</p>
<ol>
<li>Use the numerical value from both the light sensor and the temperature sensor to create automatic process.</li>
<li>Being able to operate the smart controller from computer or smartphone to use it with home appliances.</li>
</ol>
<p>We’ll try to implement these two functions.</p>
<h2>1. Sending a Remote Control Signal Depending on the <a href="http://ift.tt/1UNGqoz" target="_bank" title="Light"><strong>Light</strong></a> Sensor Numerical Value</h2>
<p>I can control the light with a remote control in the room I’m working in. I usually notices that at dusk, the room becomes darker and I have to use the remote control to turn on the light. And this happens every day. Let’s see how we could use a light sensor and send <a href="http://ift.tt/1o7SsLj" target="_bank" title="automatically"><strong>automatically</strong></a> a signal to switch on the light when the room is plunged into a certain darkness.</p>
<p>Let’s register the signal to turn on the light. Similarly to what we did last time, we’ll save in Arduino the code we analyze from the remote control infrared with the receiver module.</p>
<p><img alt="P1190293" class="alignnone size-full wp-image-1794" height="525" src="http://ift.tt/1r3ijpX" width="700" /></p>
<p>Picture 2 Light remote control and  Arduino</p>
<p>Next, we’ll write the sending program in the Arduino. Let’s make sure that we can turn on the light with Arduino. This time, we analyze the remote control “full light” signal to be sent.</p>
<p>When the remote control signal is ready, add the light sensor to the circuit. Then, create a program that will send the remote control signal when it’s becoming dark. We don’t want the light sensor to react when somebody just passes by it. To avoid that, let’s send the signal only when the state of darkness is continuous.  (<a href="http://ift.tt/1qAdaVU" target="_blank">Please refer to the following links for a detailed circuit description of the light sensor</a>)</p>
<p><img alt="b2042315a9f69fc75de6bbfee9abb51c-e1432360796705" class="alignnone size-full wp-image-1796" height="313" src="http://ift.tt/1r3ihhK" width="700" /><br />
Figure 1 Light sensor and infrared LED transmitter circuit<br />
<strong>Program: light will be turned on based on the light sensor value</strong></p>
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<div class="line number1 index0 alt2"><code class="cpp preprocessor">#include <IRremote.h></code></div>
<div class="line number2 index1 alt1"><code class="cpp spaces"> </code></div>
<div class="line number3 index2 alt2"><code class="cpp plain">IRsend irsend;</code></div>
<div class="line number4 index3 alt1"><code class="cpp spaces"> </code></div>
<div class="line number5 index4 alt2"><code class="cpp color1 bold">int</code><code class="cpp plain">pin = A1;</code></div>
<div class="line number6 index5 alt1"><code class="cpp color1 bold">int</code><code class="cpp plain">count = 0; </code> <code class="cpp comments">//count the continuous dark state</code></div>
<div class="line number7 index6 alt2"><code class="cpp spaces"> </code></div>
<div class="line number8 index7 alt1"><code class="cpp keyword bold">void</code><code class="cpp plain">setup()</code></div>
<div class="line number9 index8 alt2"><code class="cpp plain">{</code></div>
<div class="line number10 index9 alt1"><code class="cpp spaces">  </code><code class="cpp plain">Serial.begin(9600);</code></div>
<div class="line number11 index10 alt2"><code class="cpp plain">}</code></div>
<div class="line number12 index11 alt1"><code class="cpp spaces"> </code></div>
<div class="line number13 index12 alt2"><code class="cpp keyword bold">void</code><code class="cpp plain">loop() {</code></div>
<div class="line number14 index13 alt1"><code class="cpp spaces">  </code><code class="cpp color1 bold">int</code><code class="cpp plain">s = analogRead(pin); </code> <code class="cpp comments">//enter the value for the light sensor</code></div>
<div class="line number15 index14 alt2"><code class="cpp spaces">  </code><code class="cpp plain">Serial.println(s);</code></div>
<div class="line number16 index15 alt1"><code class="cpp spaces">  </code><code class="cpp keyword bold">if</code><code class="cpp plain">(s > 660) { </code> <code class="cpp comments">//when meets the specified input conditions (when it becomes dark)</code></div>
<div class="line number17 index16 alt2"><code class="cpp spaces">    </code><code class="cpp plain">count++;</code></div>
<div class="line number18 index17 alt1"><code class="cpp spaces">    </code><code class="cpp keyword bold">if</code><code class="cpp plain">(count > 5){</code></div>
<div class="line number19 index18 alt2"><code class="cpp spaces">        </code><code class="cpp plain">Serial.println(</code><code class="cpp string">"Light ON"</code><code class="cpp plain">);</code></div>
<div class="line number20 index19 alt1"><code class="cpp spaces">        </code><code class="cpp keyword bold">for</code><code class="cpp plain">(</code><code class="cpp color1 bold">int</code><code class="cpp plain">i = 0; i < 3; i++) {</code></div>
<div class="line number21 index20 alt2"><code class="cpp spaces">          </code><code class="cpp plain">irsend.sendNEC(0xa90, 12);</code> <code class="cpp comments">// lighting ON of</code></div>
<div class="line number22 index21 alt1"><code class="cpp spaces">          </code><code class="cpp plain">delay(40);</code></div>
<div class="line number23 index22 alt2"><code class="cpp spaces">        </code><code class="cpp plain">}</code></div>
<div class="line number24 index23 alt1"><code class="cpp spaces">        </code><code class="cpp plain">count = 0;</code></div>
<div class="line number25 index24 alt2"><code class="cpp spaces">    </code><code class="cpp plain">}</code></div>
<div class="line number26 index25 alt1"><code class="cpp spaces">  </code><code class="cpp plain">}</code></div>
<div class="line number27 index26 alt2"><code class="cpp spaces">  </code><code class="cpp keyword bold">else</code><code class="cpp plain">{</code></div>
<div class="line number28 index27 alt1"><code class="cpp spaces">    </code><code class="cpp plain">count = 0; </code> <code class="cpp comments">//reset the count when it's getting bright</code></div>
<div class="line number29 index28 alt2"><code class="cpp spaces">  </code><code class="cpp plain">}</code></div>
<div class="line number30 index29 alt1"><code class="cpp spaces">  </code><code class="cpp plain">delay(5000);</code></div>
<div class="line number31 index30 alt2"><code class="cpp plain">}</code></div>
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<p>Now, we’re done with our first specification: “sending a remote control signal depending on the light sensor condition” feature.</p>
<h2>2. Sending a Remote Control Signal Through the Network</h2>
<p>We can send a remote control signal depending on the light sensor. Now, let’s try to send  a remote control signal through smartphone or computer. Let’s turn Arduino into a server by using the <a href="http://ift.tt/1XLTCc3" target="_blank">Ethernet shield</a>, that we used a few time already, and then let’s try to operate the remote control with the HTML displayed on the server.</p>
<p><img alt="P1180679" class="alignnone size-full wp-image-1797" height="525" src="http://ift.tt/1r3ijpZ" width="700" /><br />
Picture 3 Arduino Ethernet Shield</p>
<p>Let’s begin by operating Arduino as a WEB server, which will allow us to create a turn on/turn off an LED with some HTML displayed on the server. If we can do that, we can replace a part of the LED remote control signal to write a program.</p>
<p>※ In this program, we use the “<a href="http://ift.tt/1BF6WCB" target="_blank">TextFinder</a>” in the library for text analysis. (<a href="http://ift.tt/1r3ijq1" target="_blank">Please refer to following link how to add a library</a>)</p>
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<div class="line number1 index0 alt2"><code class="cpp preprocessor">#include <SPI.h></code></div>
<div class="line number2 index1 alt1"><code class="cpp preprocessor">#include <Ethernet.h></code></div>
<div class="line number3 index2 alt2"><code class="cpp preprocessor">#include "TextFinder.h"</code></div>
<div class="line number4 index3 alt1"><code class="cpp spaces"> </code></div>
<div class="line number5 index4 alt2"><code class="cpp plain">byte mac[] = {</code></div>
<div class="line number6 index5 alt1"><code class="cpp plain">0x90, 0xA2, 0xDA, 0x0F, 0x3F, 0x0D</code></div>
<div class="line number7 index6 alt2"><code class="cpp plain">};</code></div>
<div class="line number8 index7 alt1"><code class="cpp plain">IPAddress ip(192,168,0,20);</code></div>
<div class="line number9 index8 alt2"><code class="cpp spaces"> </code></div>
<div class="line number10 index9 alt1"><code class="cpp comments">// Initialize the Ethernet server library</code></div>
<div class="line number11 index10 alt2"><code class="cpp comments">// with the IP address and port you want to use</code></div>
<div class="line number12 index11 alt1"><code class="cpp comments">// (port 80 is default for HTTP):</code></div>
<div class="line number13 index12 alt2"><code class="cpp plain">EthernetServer server(80);</code></div>
<div class="line number14 index13 alt1"><code class="cpp spaces"> </code></div>
<div class="line number15 index14 alt2"><code class="cpp color1 bold">int</code> <code class="cpp plain">lightPin = A0;</code></div>
<div class="line number16 index15 alt1"><code class="cpp color1 bold">int</code> <code class="cpp plain">ledPin1 = 3;</code></div>
<div class="line number17 index16 alt2"><code class="cpp color1 bold">int</code> <code class="cpp plain">ledPin2 = 2;</code></div>
<div class="line number18 index17 alt1"><code class="cpp spaces"> </code></div>
<div class="line number19 index18 alt2"><code class="cpp keyword bold">void</code> <code class="cpp plain">setup() {</code></div>
<div class="line number20 index19 alt1"><code class="cpp comments">// Open serial communications and wait for port to open:</code></div>
<div class="line number21 index20 alt2"><code class="cpp plain">Serial.begin(9600);</code></div>
<div class="line number22 index21 alt1"><code class="cpp keyword bold">while</code> <code class="cpp plain">(!Serial) {</code></div>
<div class="line number23 index22 alt2"><code class="cpp plain">;</code> <code class="cpp comments">// wait for serial port to connect. Needed for Leonardo only</code></div>
<div class="line number24 index23 alt1"><code class="cpp plain">}</code></div>
<div class="line number25 index24 alt2"><code class="cpp comments">// start the Ethernet connection and the server:</code></div>
<div class="line number26 index25 alt1"><code class="cpp plain">Ethernet.begin(mac, ip);</code></div>
<div class="line number27 index26 alt2"><code class="cpp plain">server.begin();</code></div>
<div class="line number28 index27 alt1"><code class="cpp plain">Serial.print(</code><code class="cpp string">"server is at "</code><code class="cpp plain">);</code></div>
<div class="line number29 index28 alt2"><code class="cpp plain">Serial.println(Ethernet.localIP());</code></div>
<div class="line number30 index29 alt1"><code class="cpp spaces"> </code></div>
<div class="line number31 index30 alt2"><code class="cpp plain">pinMode(ledPin1, OUTPUT);</code></div>
<div class="line number32 index31 alt1"><code class="cpp plain">pinMode(ledPin2, OUTPUT);</code></div>
<div class="line number33 index32 alt2"><code class="cpp spaces"> </code></div>
<div class="line number34 index33 alt1"><code class="cpp plain">}</code></div>
<div class="line number35 index34 alt2"><code class="cpp keyword bold">void</code> <code class="cpp plain">loop() {</code></div>
<div class="line number36 index35 alt1"><code class="cpp comments">// listen for incoming clients</code></div>
<div class="line number37 index36 alt2"><code class="cpp plain">EthernetClient client = server.available();</code></div>
<div class="line number38 index37 alt1"><code class="cpp keyword bold">if</code> <code class="cpp plain">(client) {</code></div>
<div class="line number39 index38 alt2"><code class="cpp spaces"> </code></div>
<div class="line number40 index39 alt1"><code class="cpp comments">//**********************************************************</code></div>
<div class="line number41 index40 alt2"><code class="cpp comments">//* When there is a transfer of the data in the GET format</code></div>
<div class="line number42 index41 alt1"><code class="cpp comments">//**********************************************************</code></div>
<div class="line number43 index42 alt2"><code class="cpp plain">TextFinder finder(client);</code></div>
<div class="line number44 index43 alt1"><code class="cpp keyword bold">if</code> <code class="cpp plain">(finder.find(</code><code class="cpp string">"GET"</code><code class="cpp plain">))</code></div>
<div class="line number45 index44 alt2"><code class="cpp plain">{</code></div>
<div class="line number46 index45 alt1"><code class="cpp keyword bold">while</code> <code class="cpp plain">(finder.findUntil(</code><code class="cpp string">"mode"</code><code class="cpp plain">,</code> <code class="cpp string">"\n\r"</code><code class="cpp plain">))</code></div>
<div class="line number47 index46 alt2"><code class="cpp plain">{</code></div>
<div class="line number48 index47 alt1"><code class="cpp color1 bold">int</code> <code class="cpp plain">val = finder.getValue();</code></div>
<div class="line number49 index48 alt2"><code class="cpp plain">Serial.println(</code><code class="cpp string">"val="</code><code class="cpp plain">+String(val));</code></div>
<div class="line number50 index49 alt1"><code class="cpp comments">//tv on</code></div>
<div class="line number51 index50 alt2"><code class="cpp keyword bold">if</code> <code class="cpp plain">(val == 1)</code></div>
<div class="line number52 index51 alt1"><code class="cpp plain">{</code></div>
<div class="line number53 index52 alt2"><code class="cpp plain">digitalWrite(ledPin1,HIGH);</code></div>
<div class="line number54 index53 alt1"><code class="cpp plain">delay(1000);</code></div>
<div class="line number55 index54 alt2"><code class="cpp plain">digitalWrite(ledPin1,LOW);</code></div>
<div class="line number56 index55 alt1"><code class="cpp plain">Serial.println(</code><code class="cpp string">" ON"</code><code class="cpp plain">);</code></div>
<div class="line number57 index56 alt2"><code class="cpp plain">}</code></div>
<div class="line number58 index57 alt1"><code class="cpp comments">//light on</code></div>
<div class="line number59 index58 alt2"><code class="cpp keyword bold">else</code> <code class="cpp keyword bold">if</code> <code class="cpp plain">(val == 2)</code></div>
<div class="line number60 index59 alt1"><code class="cpp plain">{</code></div>
<div class="line number61 index60 alt2"><code class="cpp plain">digitalWrite(ledPin2,HIGH);</code></div>
<div class="line number62 index61 alt1"><code class="cpp plain">delay(1000);</code></div>
<div class="line number63 index62 alt2"><code class="cpp plain">digitalWrite(ledPin2,LOW);</code></div>
<div class="line number64 index63 alt1"><code class="cpp plain">Serial.println(</code><code class="cpp string">" ON"</code><code class="cpp plain">);</code></div>
<div class="line number65 index64 alt2"><code class="cpp plain">}</code></div>
<div class="line number66 index65 alt1"><code class="cpp plain">}</code></div>
<div class="line number67 index66 alt2"><code class="cpp plain">}</code></div>
<div class="line number68 index67 alt1"><code class="cpp comments">//*******************************************</code></div>
<div class="line number69 index68 alt2"><code class="cpp plain">Serial.println(</code><code class="cpp string">"new client"</code><code class="cpp plain">);</code></div>
<div class="line number70 index69 alt1"><code class="cpp comments">// an http request ends with a blank line</code></div>
<div class="line number71 index70 alt2"><code class="cpp plain">boolean currentLineIsBlank =</code> <code class="cpp keyword bold">true</code><code class="cpp plain">;</code></div>
<div class="line number72 index71 alt1"><code class="cpp keyword bold">while</code> <code class="cpp plain">(client.connected()) {</code></div>
<div class="line number73 index72 alt2"><code class="cpp keyword bold">if</code> <code class="cpp plain">(client.available()) {</code></div>
<div class="line number74 index73 alt1"><code class="cpp color1 bold">char</code> <code class="cpp plain">c = client.read();</code></div>
<div class="line number75 index74 alt2"><code class="cpp plain">Serial.write(c);</code></div>
<div class="line number76 index75 alt1"><code class="cpp comments">// if you've gotten to the end of the line (received a newline</code></div>
<div class="line number77 index76 alt2"><code class="cpp comments">// character) and the line is blank, the http request has ended,</code></div>
<div class="line number78 index77 alt1"><code class="cpp comments">// so you can send a reply</code></div>
<div class="line number79 index78 alt2"><code class="cpp keyword bold">if</code> <code class="cpp plain">(c ==</code> <code class="cpp string">'\n'</code> <code class="cpp plain">&& currentLineIsBlank) {</code></div>
<div class="line number80 index79 alt1"><code class="cpp comments">// send a standard http response header</code></div>
<div class="line number81 index80 alt2"><code class="cpp plain">client.println(</code><code class="cpp string">"HTTP/1.1 200 OK"</code><code class="cpp plain">);</code></div>
<div class="line number82 index81 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"Content-Type: text/html"</code><code class="cpp plain">);</code></div>
<div class="line number83 index82 alt2"><code class="cpp plain">client.println(</code><code class="cpp string">"Connection: close"</code><code class="cpp plain">);</code> <code class="cpp comments">// the connection will be closed after completion of the response</code></div>
<div class="line number84 index83 alt1"><code class="cpp comments">//client.println("Refresh: 5"); // refresh the page <a href="http://ift.tt/1UDKUyD" target="_bank" title="How to automatically water your plants with the Raspberry Pi"><strong>automatically</strong></a> every 5 sec</code></div>
<div class="line number85 index84 alt2"><code class="cpp plain">client.println();</code></div>
<div class="line number86 index85 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"<!DOCTYPE HTML>"</code><code class="cpp plain">);</code></div>
<div class="line number87 index86 alt2"><code class="cpp plain">client.println(</code><code class="cpp string">"<html>"</code><code class="cpp plain">);</code></div>
<div class="line number88 index87 alt1"><code class="cpp spaces"> </code></div>
<div class="line number89 index88 alt2"><code class="cpp comments">//*************************************************</code></div>
<div class="line number90 index89 alt1"><code class="cpp comments">//* bootstrap</code></div>
<div class="line number91 index90 alt2"><code class="cpp comments">//*************************************************</code></div>
<div class="line number92 index91 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"<head>"</code><code class="cpp plain">);</code></div>
<div class="line number93 index92 alt2"><code class="cpp plain">client.println(</code><code class="cpp string">"<link rel='stylesheet' href='<a href="http://ift.tt/1FHelXo" target="_blank">http://ift.tt/1FHelXo</a>'>"</code><code class="cpp plain">);</code></div>
<div class="line number94 index93 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"<link rel='stylesheet' href='<a href="http://ift.tt/1GSvD1Z" target="_blank">http://ift.tt/1GSvD1Z</a>'>"</code><code class="cpp plain">);</code></div>
<div class="line number95 index94 alt2"><code class="cpp plain">client.println(</code><code class="cpp string">"<script src='<a href="http://ift.tt/19wK3Lg" target="_blank">http://ift.tt/19wK3Lg</a>'></script>"</code><code class="cpp plain">);</code></div>
<div class="line number96 index95 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"</head>"</code><code class="cpp plain">);</code></div>
<div class="line number97 index96 alt2"><code class="cpp comments">//*************************************************</code></div>
<div class="line number98 index97 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"<body>"</code><code class="cpp plain">);</code></div>
<div class="line number99 index98 alt2"><code class="cpp spaces"> </code></div>
<div class="line number100 index99 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"<a class='btn btn-primary' href='/?mode=1'>TV ON</a> "</code><code class="cpp plain">);</code></div>
<div class="line number101 index100 alt2"><code class="cpp plain">client.println(</code><code class="cpp string">"<a class='btn btn-primary' href='/?mode=2'>Light ON</a><hr/>"</code><code class="cpp plain">);</code></div>
<div class="line number102 index101 alt1"><code class="cpp comments">// output the value of each analog input pin</code></div>
<div class="line number103 index102 alt2"><code class="cpp color1 bold">int</code> <code class="cpp plain">sensorReading = analogRead(lightPin);</code></div>
<div class="line number104 index103 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"Light:"</code><code class="cpp plain">);</code></div>
<div class="line number105 index104 alt2"><code class="cpp plain">client.println(sensorReading);</code></div>
<div class="line number106 index105 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"<br />"</code><code class="cpp plain">);</code></div>
<div class="line number107 index106 alt2"><code class="cpp plain">client.println(</code><code class="cpp string">"</body>"</code><code class="cpp plain">);</code></div>
<div class="line number108 index107 alt1"><code class="cpp plain">client.println(</code><code class="cpp string">"</html>"</code><code class="cpp plain">);</code></div>
<div class="line number109 index108 alt2"><code class="cpp keyword bold">break</code><code class="cpp plain">;</code></div>
<div class="line number110 index109 alt1"><code class="cpp plain">}</code></div>
<div class="line number111 index110 alt2"><code class="cpp keyword bold">if</code> <code class="cpp plain">(c ==</code> <code class="cpp string">'\n'</code><code class="cpp plain">) {</code></div>
<div class="line number112 index111 alt1"><code class="cpp comments">// you're starting a new line</code></div>
<div class="line number113 index112 alt2"><code class="cpp plain">currentLineIsBlank =</code> <code class="cpp keyword bold">true</code><code class="cpp plain">;</code></div>
<div class="line number114 index113 alt1"><code class="cpp plain">}</code></div>
<div class="line number115 index114 alt2"><code class="cpp keyword bold">else</code> <code class="cpp keyword bold">if</code> <code class="cpp plain">(c !=</code> <code class="cpp string">'\r'</code><code class="cpp plain">) {</code></div>
<div class="line number116 index115 alt1"><code class="cpp comments">// you've gotten a character on the current line</code></div>
<div class="line number117 index116 alt2"><code class="cpp plain">currentLineIsBlank =</code> <code class="cpp keyword bold">false</code><code class="cpp plain">;</code></div>
<div class="line number118 index117 alt1"><code class="cpp plain">}</code></div>
<div class="line number119 index118 alt2"><code class="cpp plain">}</code></div>
<div class="line number120 index119 alt1"><code class="cpp plain">}</code></div>
<div class="line number121 index120 alt2"><code class="cpp comments">// give the web browser time to receive the data</code></div>
<div class="line number122 index121 alt1"><code class="cpp plain">delay(1);</code></div>
<div class="line number123 index122 alt2"><code class="cpp comments">// close the connection:</code></div>
<div class="line number124 index123 alt1"><code class="cpp plain">client.stop();</code></div>
<div class="line number125 index124 alt2"><code class="cpp plain">Serial.println(</code><code class="cpp string">"client disconnected"</code><code class="cpp plain">);</code></div>
<div class="line number126 index125 alt1"><code class="cpp plain">}</code></div>
<div class="line number127 index126 alt2"><code class="cpp plain">}</code></div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<p><img alt="P1190297" class="alignnone size-full wp-image-1799" height="525" src="http://ift.tt/1XLTDNc" width="700" /><br />
Picture 4 Test circuit for turn on the LED from the web server</p>
<p>I was able to turn on and off the LED from the WEB server. Then, instead of the LED, I was able to update to send a remote control signal. Then, instead of the LED, by updating the program and circuit, I was able to send a remote control signal. When using the Ethernet shield, you should use the pin 4 and pin 10-13 and keep the other pins to create the circuit. Finally, below is the program that will combine the light sensor circuit input. Please try to change the signal and the HTML output depending on your remote control.</p>
<p><strong>Program: Smart controller circuit</strong></p>
<div>
<div id="highlighter_278629" class="syntaxhighlighter cpp">
<table border="0" cellspacing="0" cellpadding="0">
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</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2"><code class="cpp preprocessor">#include <SPI.h></code></div>
<div class="line number2 index1 alt1"><code class="cpp preprocessor">#include <Ethernet.h></code></div>
<div class="line number3 index2 alt2"><code class="cpp preprocessor">#include "TextFinder.h"</code></div>
<div class="line number4 index3 alt1"><code class="cpp preprocessor">#include <IRremote.h></code></div>
<div class="line number5 index4 alt2"><code class="cpp spaces"> </code></div>
<div class="line number6 index5 alt1"><code class="cpp plain">IRsend irsend;</code></div>
<div class="line number7 index6 alt2"><code class="cpp spaces"> </code></div>
<div class="line number8 index7 alt1"><code class="cpp plain">byte mac[] = {</code></div>
<div class="line number9 index8 alt2"><code class="cpp spaces">  </code><code class="cpp plain">0x90, 0xA2, 0xDA, 0x0F, 0x3F, 0x0D</code></div>
<div class="line number10 index9 alt1"><code class="cpp plain">}; </code> <code class="cpp comments">//Fill in the MAC address of the Ethernet shield you are using</code></div>
<div class="line number11 index10 alt2"><code class="cpp plain">IPAddress ip(192,168,0,20); </code> <code class="cpp comments">//IP address of the network band you are using</code></div>
<div class="line number12 index11 alt1"><code class="cpp spaces"> </code></div>
<div class="line number13 index12 alt2"><code class="cpp comments">// Initialize the Ethernet server library</code></div>
<div class="line number14 index13 alt1"><code class="cpp comments">// with the IP address and port you want to use</code></div>
<div class="line number15 index14 alt2"><code class="cpp comments">// (port 80 is default for HTTP):</code></div>
<div class="line number16 index15 alt1"><code class="cpp plain">EthernetServer server(80);</code></div>
<div class="line number17 index16 alt2"><code class="cpp spaces"> </code></div>
<div class="line number18 index17 alt1"><code class="cpp color1 bold">int</code> <code class="cpp plain">lightPin  = A1;</code></div>
<div class="line number19 index18 alt2"><code class="cpp color1 bold">int</code> <code class="cpp plain">count  = 0;</code></div>
<div class="line number20 index19 alt1"><code class="cpp keyword bold">void</code> <code class="cpp plain">setup() {</code></div>
<div class="line number21 index20 alt2"><code class="cpp spaces">  </code><code class="cpp comments">// Open serial communications and wait for port to open:</code></div>
<div class="line number22 index21 alt1"><code class="cpp spaces">  </code><code class="cpp plain">Serial.begin(9600);</code></div>
<div class="line number23 index22 alt2"><code class="cpp spaces">  </code><code class="cpp keyword bold">while</code> <code class="cpp plain">(!Serial) {</code></div>
<div class="line number24 index23 alt1"><code class="cpp spaces">    </code><code class="cpp plain">;</code> <code class="cpp comments">// wait for serial port to connect. Needed for Leonardo only</code></div>
<div class="line number25 index24 alt2"><code class="cpp spaces">  </code><code class="cpp plain">}</code></div>
<div class="line number26 index25 alt1"><code class="cpp spaces">  </code><code class="cpp comments">// start the Ethernet connection and the server:</code></div>
<div class="line number27 index26 alt2"><code class="cpp spaces">  </code><code class="cpp plain">Ethernet.begin(mac, ip);</code></div>
<div class="line number28 index27 alt1"><code class="cpp spaces">  </code><code class="cpp plain">server.begin();</code></div>
<div class="line number29 index28 alt2"><code class="cpp spaces">  </code><code class="cpp plain">Serial.print(</code><code class="cpp string">"server is at "</code><code class="cpp plain">);</code></div>
<div class="line number30 index29 alt1"><code class="cpp spaces">  </code><code class="cpp plain">Serial.println(Ethernet.localIP());</code></div>
<div class="line number31 index30 alt2"><code class="cpp spaces"> </code></div>
<div class="line number32 index31 alt1"><code class="cpp plain">}</code></div>
<div class="line number33 index32 alt2"><code class="cpp spaces"> </code></div>
<div class="line number34 index33 alt1"><code class="cpp keyword bold">void</code> <code class="cpp plain">loop() {</code></div>
<div class="line number35 index34 alt2"><code class="cpp spaces"> </code></div>
<div class="line number36 index35 alt1"><code class="cpp spaces">  </code><code class="cpp color1 bold">int</code> <code class="cpp plain">sensorValue = analogRead(lightPin);</code></div>
<div class="line number37 index36 alt2"><code class="cpp comments">//***************************************************************************************</code></div>
<div class="line number38 index37 alt1"><code class="cpp comments">//* ON the lighting when the case darker than the specified brightness was followed by</code></div>
<div class="line number39 index38 alt2"><code class="cpp comments">//***************************************************************************************</code></div>
<div class="line number40 index39 alt1"><code class="cpp spaces">  </code><code class="cpp keyword bold">if</code><code class="cpp plain">(sensorValue > 660){</code></div>
<div class="line number41 index40 alt2"><code class="cpp spaces">    </code><code class="cpp plain">count++;</code></div>
<div class="line number42 index41 alt1"><code class="cpp spaces">    </code><code class="cpp keyword bold">if</code><code class="cpp plain">(count > 10){</code></div>
<div class="line number43 index42 alt2"><code class="cpp spaces">     </code><code class="cpp comments">// Lighting on</code></div>
<div class="line number44 index43 alt1"><code class="cpp spaces">     </code><code class="cpp keyword bold">for</code> <code class="cpp plain">(</code><code class="cpp color1 bold">int</code> <code class="cpp plain">i = 0; i < 3; i++) {</code></div>
<div class="line number45 index44 alt2"><code class="cpp spaces">        </code><code class="cpp plain">irsend.sendNEC(0xC318F7, 32);</code></div>
<div class="line number46 index45 alt1"><code class="cpp spaces">        </code><code class="cpp plain">delay(40);</code></div>
<div class="line number47 index46 alt2"><code class="cpp spaces">      </code><code class="cpp plain">}</code></div>
<div class="line number48 index47 alt1"><code class="cpp spaces">      </code><code class="cpp plain">Serial.println(</code><code class="cpp string">" ON"</code><code class="cpp plain">);</code></div>
<div class="line number49 index48 alt2"><code class="cpp spaces">      </code><code class="cpp plain">count = 0;</code></div>
<div class="line number50 index49 alt1"><code class="cpp spaces">    </code><code class="cpp plain">}</code></div>
<div class="line number51 index50 alt2"><code class="cpp spaces">  </code><code class="cpp plain">}</code></div>
<div class="line number52 index51 alt1"><code class="cpp spaces">  </code><code class="cpp keyword bold">else</code><code class="cpp plain">{</code></div>
<div class="line number53 index52 alt2"><code class="cpp spaces">    </code><code class="cpp plain">count = 0;</code></div>
<div class="line number54 index53 alt1"><code class="cpp spaces">  </code><code class="cpp plain">}</code></div>
<div class="line number55 index54 alt2"><code class="cpp spaces">  </code><code class="cpp plain">delay(1000);</code></div>
<div class="line number56 index55 alt1"><code class="cpp spaces"> </code></div>
<div class="line number57 index56 alt2"><code class="cpp spaces">  </code><code class="cpp comments">// listen for incoming clients</code></div>
<div class="line number58 index57 alt1"><code class="cpp spaces">  </code><code class="cpp plain">EthernetClient client = server.available();</code></div>
<div class="line number59 index58 alt2"><code class="cpp spaces">  </code><code class="cpp keyword bold">if</code> <code class="cpp plain">(client) {</code></div>
<div class="line number60 index59 alt1"><code class="cpp spaces"> </code></div>
<div class="line number61 index60 alt2"><code class="cpp comments">//*********************************************************************************************</code></div>
<div class="line number62 index61 alt1"><code class="cpp comments">//* When there is a transfer of the data in the GET format (operation from the browser side)</code></div>
<div class="line number63 index62 alt2"><code class="cpp comments">//*********************************************************************************************</code></div>
<div class="line number64 index63 alt1"><code class="cpp spaces">                </code><code class="cpp plain">TextFinder finder(client);</code></div>
<div class="line number65 index64 alt2"><code class="cpp spaces">        </code><code class="cpp keyword bold">if</code> <code class="cpp plain">(finder.find(</code><code class="cpp string">"GET"</code><code class="cpp plain">))</code></div>
<div class="line number66 index65 alt1"><code class="cpp spaces">        </code><code class="cpp plain">{</code></div>
<div class="line number67 index66 alt2"><code class="cpp spaces">            </code><code class="cpp keyword bold">while</code> <code class="cpp plain">(finder.findUntil(</code><code class="cpp string">"mode"</code><code class="cpp plain">,</code> <code class="cpp string">"\n\r"</code><code class="cpp plain">))</code></div>
<div class="line number68 index67 alt1"><code class="cpp spaces">            </code><code class="cpp plain">{</code></div>
<div class="line number69 index68 alt2"><code class="cpp spaces">                </code><code class="cpp color1 bold">int</code> <code class="cpp plain">val = finder.getValue();</code></div>
<div class="line number70 index69 alt1"><code class="cpp spaces">                </code><code class="cpp plain">Serial.println(</code><code class="cpp string">"val="</code><code class="cpp plain">+String(val));</code></div>
<div class="line number71 index70 alt2"><code class="cpp spaces">                                </code><code class="cpp comments">//tv on</code></div>
<div class="line number72 index71 alt1"><code class="cpp spaces">                </code><code class="cpp keyword bold">if</code> <code class="cpp plain">(val == 1)</code></div>
<div class="line number73 index72 alt2"><code class="cpp spaces">                </code><code class="cpp plain">{</code></div>
<div class="line number74 index73 alt1"><code class="cpp spaces">                                   </code><code class="cpp comments">// TV power ON signal</code></div>
<div class="line number75 index74 alt2"><code class="cpp spaces">                                   </code><code class="cpp keyword bold">for</code> <code class="cpp plain">(</code><code class="cpp color1 bold">int</code> <code class="cpp plain">i = 0; i < 3; i++) {</code></div>
<div class="line number76 index75 alt1"><code class="cpp spaces">                                     </code><code class="cpp plain">irsend.sendSony(0xa90, 12);</code></div>
<div class="line number77 index76 alt2"><code class="cpp spaces">                                     </code><code class="cpp plain">delay(40);</code></div>
<div class="line number78 index77 alt1"><code class="cpp spaces">                                   </code><code class="cpp plain">}</code></div>
<div class="line number79 index78 alt2"><code class="cpp spaces">                   </code><code class="cpp plain">Serial.println(</code><code class="cpp string">" ON"</code><code class="cpp plain">);</code></div>
<div class="line number80 index79 alt1"><code class="cpp spaces">                </code><code class="cpp plain">}</code></div>
<div class="line number81 index80 alt2"><code class="cpp spaces">                                </code><code class="cpp comments">//light on</code></div>
<div class="line number82 index81 alt1"><code class="cpp spaces">                </code><code class="cpp keyword bold">else</code> <code class="cpp keyword bold">if</code> <code class="cpp plain">(val == 2)</code></div>
<div class="line number83 index82 alt2"><code class="cpp spaces">                </code><code class="cpp plain">{</code></div>
<div class="line number84 index83 alt1"><code class="cpp spaces">                                   </code><code class="cpp comments">// Light on</code></div>
<div class="line number85 index84 alt2"><code class="cpp spaces">                                   </code><code class="cpp keyword bold">for</code> <code class="cpp plain">(</code><code class="cpp color1 bold">int</code> <code class="cpp plain">i = 0; i < 3; i++) {</code></div>
<div class="line number86 index85 alt1"><code class="cpp spaces">                                     </code><code class="cpp plain">irsend.sendNEC(0xC318F7, 32);</code></div>
<div class="line number87 index86 alt2"><code class="cpp spaces">                                     </code><code class="cpp plain">delay(40);</code></div>
<div class="line number88 index87 alt1"><code class="cpp spaces">                                   </code><code class="cpp plain">}</code></div>
<div class="line number89 index88 alt2"><code class="cpp spaces">                   </code><code class="cpp plain">Serial.println(</code><code class="cpp string">" ON"</code><code class="cpp plain">);</code></div>
<div class="line number90 index89 alt1"><code class="cpp spaces">                </code><code class="cpp plain">}</code></div>
<div class="line number91 index90 alt2"><code class="cpp spaces">            </code><code class="cpp plain">}</code></div>
<div class="line number92 index91 alt1"><code class="cpp spaces">        </code><code class="cpp plain">}</code></div>
<div class="line number93 index92 alt2"><code class="cpp comments">//*******************************************</code></div>
<div class="line number94 index93 alt1"><code class="cpp spaces"> </code></div>
<div class="line number95 index94 alt2"><code class="cpp spaces">    </code><code class="cpp plain">Serial.println(</code><code class="cpp string">"new client"</code><code class="cpp plain">);</code></div>
<div class="line number96 index95 alt1"><code class="cpp spaces">    </code><code class="cpp comments">// an http request ends with a blank line</code></div>
<div class="line number97 index96 alt2"><code class="cpp spaces">    </code><code class="cpp plain">boolean currentLineIsBlank =</code> <code class="cpp keyword bold">true</code><code class="cpp plain">;</code></div>
<div class="line number98 index97 alt1"><code class="cpp spaces">    </code><code class="cpp keyword bold">while</code> <code class="cpp plain">(client.connected()) {</code></div>
<div class="line number99 index98 alt2"><code class="cpp spaces">      </code><code class="cpp keyword bold">if</code> <code class="cpp plain">(client.available()) {</code></div>
<div class="line number100 index99 alt1"><code class="cpp spaces">        </code><code class="cpp color1 bold">char</code> <code class="cpp plain">c = client.read();</code></div>
<div class="line number101 index100 alt2"><code class="cpp spaces">        </code><code class="cpp plain">Serial.write(c);</code></div>
<div class="line number102 index101 alt1"><code class="cpp spaces">        </code><code class="cpp comments">// if you've gotten to the end of the line (received a newline</code></div>
<div class="line number103 index102 alt2"><code class="cpp spaces">        </code><code class="cpp comments">// character) and the line is blank, the http request has ended,</code></div>
<div class="line number104 index103 alt1"><code class="cpp spaces">        </code><code class="cpp comments">// so you can send a reply</code></div>
<div class="line number105 index104 alt2"><code class="cpp spaces">        </code><code class="cpp keyword bold">if</code> <code class="cpp plain">(c ==</code> <code class="cpp string">'\n'</code> <code class="cpp plain">&& currentLineIsBlank) {</code></div>
<div class="line number106 index105 alt1"><code class="cpp spaces">          </code><code class="cpp comments">// send a standard http response header</code></div>
<div class="line number107 index106 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"HTTP/1.1 200 OK"</code><code class="cpp plain">);</code></div>
<div class="line number108 index107 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"Content-Type: text/html"</code><code class="cpp plain">);</code></div>
<div class="line number109 index108 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"Connection: close"</code><code class="cpp plain">); </code> <code class="cpp comments">// the connection will be closed after completion of the response</code></div>
<div class="line number110 index109 alt1"><code class="cpp spaces">          </code><code class="cpp comments">//client.println("Refresh: 5");  // refresh the page automatically every 5 sec</code></div>
<div class="line number111 index110 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println();</code></div>
<div class="line number112 index111 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<!DOCTYPE HTML>"</code><code class="cpp plain">);</code></div>
<div class="line number113 index112 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<html>"</code><code class="cpp plain">);</code></div>
<div class="line number114 index113 alt1"><code class="cpp spaces"> </code></div>
<div class="line number115 index114 alt2"><code class="cpp spaces"> </code><code class="cpp comments">//*************************************************</code></div>
<div class="line number116 index115 alt1"><code class="cpp comments">//* bootstrap</code></div>
<div class="line number117 index116 alt2"><code class="cpp spaces"> </code><code class="cpp comments">//*************************************************</code></div>
<div class="line number118 index117 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<head>"</code><code class="cpp plain">);</code></div>
<div class="line number119 index118 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<link rel='stylesheet' href='<a href="http://ift.tt/1FHelXo" target="_blank">http://ift.tt/1FHelXo</a>'>"</code><code class="cpp plain">);</code></div>
<div class="line number120 index119 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<link rel='stylesheet' href='<a href="http://ift.tt/1GSvD1Z" target="_blank">http://ift.tt/1GSvD1Z</a>'>"</code><code class="cpp plain">);</code></div>
<div class="line number121 index120 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<script src='<a href="http://ift.tt/19wK3Lg" target="_blank">http://ift.tt/19wK3Lg</a>'></script>"</code><code class="cpp plain">);</code></div>
<div class="line number122 index121 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"</head>"</code><code class="cpp plain">);</code></div>
<div class="line number123 index122 alt2"><code class="cpp spaces"> </code><code class="cpp comments">//*************************************************</code></div>
<div class="line number124 index123 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<body>"</code><code class="cpp plain">);</code></div>
<div class="line number125 index124 alt2"><code class="cpp spaces"> </code></div>
<div class="line number126 index125 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<a class='btn btn-primary' href='/?mode=1'>TV ON</a> "</code><code class="cpp plain">);</code></div>
<div class="line number127 index126 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<a class='btn btn-primary' href='/?mode=2'>Light ON</a><hr/>"</code><code class="cpp plain">);</code></div>
<div class="line number128 index127 alt1"><code class="cpp spaces">          </code><code class="cpp comments">// output the value of each analog input pin</code></div>
<div class="line number129 index128 alt2"><code class="cpp spaces">          </code><code class="cpp color1 bold">int</code> <code class="cpp plain">sensorReading = analogRead(lightPin);</code></div>
<div class="line number130 index129 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"Light:"</code><code class="cpp plain">);</code></div>
<div class="line number131 index130 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(sensorReading);</code></div>
<div class="line number132 index131 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"<br />"</code><code class="cpp plain">);</code></div>
<div class="line number133 index132 alt2"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"</body>"</code><code class="cpp plain">);</code></div>
<div class="line number134 index133 alt1"><code class="cpp spaces">          </code><code class="cpp plain">client.println(</code><code class="cpp string">"</html>"</code><code class="cpp plain">);</code></div>
<div class="line number135 index134 alt2"><code class="cpp spaces">          </code><code class="cpp keyword bold">break</code><code class="cpp plain">;</code></div>
<div class="line number136 index135 alt1"><code class="cpp spaces">        </code><code class="cpp plain">}</code></div>
<div class="line number137 index136 alt2"><code class="cpp spaces">        </code><code class="cpp keyword bold">if</code> <code class="cpp plain">(c ==</code> <code class="cpp string">'\n'</code><code class="cpp plain">) {</code></div>
<div class="line number138 index137 alt1"><code class="cpp spaces">          </code><code class="cpp comments">// you're starting a new line</code></div>
<div class="line number139 index138 alt2"><code class="cpp spaces">          </code><code class="cpp plain">currentLineIsBlank =</code> <code class="cpp keyword bold">true</code><code class="cpp plain">;</code></div>
<div class="line number140 index139 alt1"><code class="cpp spaces">        </code><code class="cpp plain">}</code></div>
<div class="line number141 index140 alt2"><code class="cpp spaces">        </code><code class="cpp keyword bold">else</code> <code class="cpp keyword bold">if</code> <code class="cpp plain">(c !=</code> <code class="cpp string">'\r'</code><code class="cpp plain">) {</code></div>
<div class="line number142 index141 alt1"><code class="cpp spaces">          </code><code class="cpp comments">// you've gotten a character on the current line</code></div>
<div class="line number143 index142 alt2"><code class="cpp spaces">          </code><code class="cpp plain">currentLineIsBlank =</code> <code class="cpp keyword bold">false</code><code class="cpp plain">;</code></div>
<div class="line number144 index143 alt1"><code class="cpp spaces">        </code><code class="cpp plain">}</code></div>
<div class="line number145 index144 alt2"><code class="cpp spaces">      </code><code class="cpp plain">}</code></div>
<div class="line number146 index145 alt1"><code class="cpp spaces">    </code><code class="cpp plain">}</code></div>
<div class="line number147 index146 alt2"><code class="cpp spaces">    </code><code class="cpp comments">// give the web browser time to receive the data</code></div>
<div class="line number148 index147 alt1"><code class="cpp spaces">    </code><code class="cpp plain">delay(1);</code></div>
<div class="line number149 index148 alt2"><code class="cpp spaces">    </code><code class="cpp comments">// close the connection:</code></div>
<div class="line number150 index149 alt1"><code class="cpp spaces">    </code><code class="cpp plain">client.stop();</code></div>
<div class="line number151 index150 alt2"><code class="cpp spaces">    </code><code class="cpp plain">Serial.println(</code><code class="cpp string">"client disconnected"</code><code class="cpp plain">);</code></div>
<div class="line number152 index151 alt1"><code class="cpp spaces">  </code><code class="cpp plain">}</code></div>
<div class="line number153 index152 alt2"><code class="cpp plain">}</code></div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<p>We’re able to operate from the WEB server!</p>
<h2>Summary</h2>
<p>We were able to successfully implement the second pattern in our smart controller and to use it. Now, our home appliances can be controlled automatically depending on the sensor value, and can also be controlled via smartphone or PC. This time, we have been using the light sensor. But we could have combined in with an ultrasonic wave sensor to turn on the light when somebody is there, or with a temperature sensor to turn on the electric fan when it’s becoming hot. These are some examples of features that can be implemented in the smart controller to make his usage more interesting.</p>
<p>Note: When operating smartphone or when doing automatic control, to prevent accident like fire, please experiment in the vicinity.</p>
</div>
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