Archive for November 2016

[ App Android ] Recipes Cooking Book

Wall's Corners

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Title: [ App Android ] Recipes Cooking Book
Author: Wall's Corners
Rating 5 of 5 Des:

Recipes Corner - Cooking Book >>>> Click here to DOWNLOAD from Google Play Store <<<< Recipes Corner for fre...

<a href="https://play.google.com/store/apps/details?id=com.gabriel.cooking" target="_blank">Recipes Corner - Cooking Book</a> 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglkUZtBYG-5V4kYdj6gjdPevnHK4cY9ThX7ghLklP7Lh4zHbIgs1oXs-sK6UTqwGaSaDfUfIXvDDXDLAXUShMrLzEPqExIkHXA1yEkzscGyAS-4nEmROERQtHoNB2Tg8GI0ArizqkBQ1ff/s1600/Screen+Shot+2016-11-19+at+11.26.43+PM.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglkUZtBYG-5V4kYdj6gjdPevnHK4cY9ThX7ghLklP7Lh4zHbIgs1oXs-sK6UTqwGaSaDfUfIXvDDXDLAXUShMrLzEPqExIkHXA1yEkzscGyAS-4nEmROERQtHoNB2Tg8GI0ArizqkBQ1ff/s320/Screen+Shot+2016-11-19+at+11.26.43+PM.png" width="179" /></a></div>
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>>>> <a href="https://play.google.com/store/apps/details?id=com.gabriel.cooking" target="_blank">Click here to DOWNLOAD from Google Play Store</a> <<<< 
 
Recipes Corner for free app is one of the most used recipe apps in the world. It lets you discover new and tasty recipes from around the world. Healthy food for healthy living Cookbook has a healthy meal planner with grocery list. Using the meal planner, you can add healthy recipes to the calendar. Ingredients required for the meal plan gets added to your shopping list automatically. Cooking reminders help you shop for grocery in time for the meal plan. Cookbook's meal planner and shopping list helps you to cook healthy recipes for the whole family. 
<div style="background-color: white; border: 0px; color: #333333; font-family: roboto, uilanguagefont, arial, sans-serif; font-size: 14px; margin-bottom: 16px; padding: 0px;">
Recipe Search by Voice 
Cookbook has voice search for recipes built in. This allows you to search for easy recipes by ingredients on hand. You can also access shopping lists and bookmarked recipes using voice commands. It's your perfect cooking assistant. Search for recipes based on cuisine, cook time & techniques (grill, bake or fry).</div>
<div style="background-color: white; border: 0px; color: #333333; font-family: roboto, uilanguagefont, arial, sans-serif; font-size: 14px; margin-bottom: 16px; padding: 0px;">
Recipes for every event 
Get access to curated collection of the finest recipes for every event, that too for free. Cookbook includes recipes for festivals like Thanksgiving, Christmas & New Year Barbecue parties. Cookbook can also suggest recipes for birthdays, anniversaries, weekend parties and getaways.</div>
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Collect & Save recipes you love 
Cookbook acts as a recipe keeper and allows you to collect recipes from around the world. You can tweak the collected recipe to the way you like it.</div>
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Special Diets 
Cookbook helps people suffering from food allergies to dairy, seafood and peanuts eat healthy meals. Cookbook covers people following vegan, paleo, vegetarian and gluten free diets. Keep track of nutrition requirements for fat, calories, carbs and cholesterol using Cookbook.</div>
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Non-vegetarian recipes for prime ribs, beef stew, pork chops are available in Cookbook. It also covers crock pot and seafood like shrimps and prawns. Appetizers and desserts for Christmas cookies, banana bread, cheesecakes and snickerdoodle are also available.</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiYksEQ59lGH41DVTbkOGUB-FBooxwhm6ZSEpz7ZyF4zzxRLjc22EA2mNr_AZtBaKnS-RjUhLl98s5NBrubHDPfSvxgzxY7o5prPTFnQtl156JdrbhJp0lsvQ7fj7j0EBqjJyoWeUHoP2Y/s1600/GOOGLEPLAY.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="https://play.google.com/store/apps/details?id=com.gabriel.cooking" border="0" height="123" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiYksEQ59lGH41DVTbkOGUB-FBooxwhm6ZSEpz7ZyF4zzxRLjc22EA2mNr_AZtBaKnS-RjUhLl98s5NBrubHDPfSvxgzxY7o5prPTFnQtl156JdrbhJp0lsvQ7fj7j0EBqjJyoWeUHoP2Y/s320/GOOGLEPLAY.png" title="https://play.google.com/store/apps/details?id=com.gabriel.cooking" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="font-size: 12.800000190734863px;">https://play.google.com/store/apps/details?id=com.gabriel.cooking</td></tr>
</tbody></table>
 
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Contact with me if you want to have more recipes: sonpxvn@gmail.com 
http://api.yoursmart.mobi/</div>

[ App Android ] Recipes Cooking Book

Recipes Corner - Cooking Book >>>> Click here to DOWNLOAD from Google Play Store <<<< Recipes Corner for fre...

Adafruit 5″ LCD and the Raspberry Pi 2 with Windows 10

Wall's Corners

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Title: Adafruit 5″ LCD and the Raspberry Pi 2 with Windows 10
Author: Wall's Corners
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Adafruit 5″ LCD and the Raspberry Pi 2 with Windows 10

Hardware setup Connect the Raspberry Pi2 to the breadboard and the other components as per the Fritzing diagram at the bottom of the page. ...

<h3 id="toc-hardware-setup-0">Hardware setup</h3>
Connect the Raspberry Pi2 to the breadboard and the other components as per the Fritzing diagram at the bottom of the page.
Note: The LED pin has changed from the previous <a target="_blank" href="http://bit.ly/2fNawup" rel="nofollow">Blinky example</a> from <a href="http://bit.ly/26nCnnf" target="_bank" itemprop="url" title="GPIO">GPIO</a> 5 to GPIO 18.
<h3 id="toc-code-1">Code</h3>
<h4>MainPage.cs</h4>
You can download the code starting project from <a target="_blank" href="http://bit.ly/2fv5uzF" rel="nofollow">http://bit.ly/2fv5uzF</a> and we will lead you through the addition of the code needed to talk to the web service and get your pin on the map. <a target="_blank" href="http://bit.ly/2fN6B0x" rel="nofollow">What map?</a>
Open up “Lesson_201\StartSolution\Lesson_201.sln<a target="_blank" href="http://bit.ly/2fv3CXP" rel="nofollow">“</a> and open the MainPage.xaml.cs file.
We have filled in a few methods as a starting point for you in this solution. If you want to jump ahead you can find a solution with all the code completed at: “Lesson_201\FullSolution\Lesson_201.sln”
Add the following lines at the top of the MainPage class.  These define what pin on the Pi2 you will use to control the LED and a reference to the InternetLed class which you will be adding shortly.
<pre class="hljs cs">
 public sealed partial class MainPage : Page
 {
 // which GPIO pin do we want to use to control the LED light
 const int GPIOToUse = 18;

// The class which wraps our LED.
 InternetLed internetLed;

public MainPage()

</pre>
Now add code in the OnNavigatedTo method which will:
<ol>
<li>Create a new InternetLed object</li>
<li>Make a web API call to put our pin on the maker map</li>
<li>Initialize the object</li>
<li>Call the webapi to get our delay value.</li>
<li>Loop 100 times with the returned delay, blinking the led each pass.</li>
</ol>
If you do not want to add a pin onto the map, remove <code>MakePinWebAPICall();</code>
<pre class="hljs cs">
// This method will be called by the application framework when the page is first loaded.
protected override async void OnNavigatedTo(NavigationEventArgs navArgs)
{
 Debug.WriteLine("MainPage::OnNavigatedTo");

MakePinWebAPICall();

try
 {
 // Create a new InternetLed object
 internetLed = new InternetLed(GPIOToUse);

// Initialize it for use
 internetLed.InitalizeLed();

// Now have it make the web API call and get the led blink delay
 int blinkDelay = await internetLed.GetBlinkDelayFromWeb();

for (int i = 0; i < 100; i++)
 {
 internetLed.Blink();
 await Task.Delay(blinkDelay);
 }

}
 catch (Exception e)
 {
 Debug.WriteLine(e.Message);
 }
}
</pre>
<h4>InternetLed.cs</h4>
Now you will add a new class file in which most of the work will actually be performed.
From the main menu select Project -> Add Class…
The Add New Item dialog will open and default to Visual C# Class.
Enter InternetLed.cs for the file name and click Add
The class file will be created and opened for you.
Update using’s
You will need replace the using’s section at the top of the file so the code can reference the GPIO device, web interfaces and the system diagnostics.
<pre class="hljs gams">
using System;
using System.Diagnostics;
using System.Net.Http;
using System.Threading.Tasks;
using Windows.Devices.Gpio;

namespace Lesson_201
{
</pre>
Class members
Inside the class brackets add the following lines which will be referenced by the code a little later.
<pre class="hljs cs">
 class InternetLed
 {
 // GPIO controller code
 private GpioController gpio;
 private GpioPin LedControlGPIOPin;
 private int LedControlPin;

// only used if we don't get a response from the webapi call.
 private const int DefaultBlinkDelay = 1000;

// An enumeration to store the state of the led
 public enum eLedState { Off, On };
 private eLedState _LedState;
</pre>
Class constructor
Now, add the class constructor code which will store the value of the pin used to control the LED.
<pre class="hljs cpp">
 public InternetLed(int ledControlPin)
 {
 Debug.WriteLine("InternetLed::New InternetLed");

// Store the selected GPIO control pin id for use when we initialize the GPIO
 LedControlPin = ledControlPin;
 }
</pre>
Initializer member
Add initialization code, this is responsible for setting up communication with the Pi2 General Purpose Input Output (GPIO) controller.
<pre class="hljs pf">
public void InitalizeLed()
{
 Debug.WriteLine("InternetLed::InitalizeLed");

// Now setup the LedControlPin
 gpio = GpioController.GetDefault();

LedControlGPIOPin = gpio.OpenPin(LedControlPin);
 LedControlGPIOPin.SetDriveMode(GpioPinDriveMode.Output);

// Get the current pin value
 GpioPinValue startingValue = LedControlGPIOPin.Read();
 _LedState = (startingValue == GpioPinValue.Low) ? eLedState.On : eLedState.Off;
}
</pre>
LedState property
This wraps interaction with the state of the led (on vs off) into a central location.
<pre class="hljs haxe">
// A public property for interacting with the LED from code.
public eLedState LedState
{
 get { return _LedState; }
 set
 {
 Debug.WriteLine("InternetLed::LedState::set " + value.ToString());
 if (LedControlGPIOPin != null)
 {
 GpioPinValue newValue = (value == eLedState.On ? GpioPinValue.High : GpioPinValue.Low);
 LedControlGPIOPin.Write(newValue);
 _LedState = value;
 }
 }
}
</pre>
Blink method
Add a method that handles changing the led state.
<pre class="hljs cmake">
 // Change the state of the led from on to off or off to on
 public void Blink()
 {
 if (LedState == eLedState.On)
 {
 LedState = eLedState.Off;
 }
 else
 {
 LedState = eLedState.On;
 }
 }
</pre>
GetBlinkDelayFromWeb method
This is where the main work of the class gets done.
Start out by setting up a HttpClient call and then execute it. Then output the returned string to the debug channel so you can see it.
Next, we determine what the value of the delay is and return it.
<pre class="hljs arduino">
 // This will call an exposed web API at the indicated URL
 // the API will return a string value to use as the blink delay.
 const string WebAPIURL = "http://bit.ly/2fv4rjw";
 public async Task<int> GetBlinkDelayFromWeb()
 {
 Debug.WriteLine("InternetLed::MakeWebApiCall");

string responseString = "No response";

try
 {
 using (HttpClient client = new HttpClient())
 {
 // Make the call
 responseString = await client.GetStringAsync(WebAPIURL);

// Let us know what the returned string was
 Debug.WriteLine(String.Format("Response string: [{0}]", responseString));
 }
 }
 catch (Exception e)
 {
 Debug.WriteLine(e.Message);
 }

int delay;

if (!int.TryParse(responseString, out delay))
 {
 delay = DefaultBlinkDelay;
 }

// return the blink delay
 return delay;
 }
 }
}
</pre>
<h3 id="toc-try-it-out-2">Try it out</h3>
Once all the code is entered you can build the solution and run the code on your Pi2. If needed you can review the instructions on how to connect and run code on PI, revisit <a target="_blank" href="http://bit.ly/2fNawup" rel="nofollow">Lesson 1 – Blinky</a>.
Open the Output tab of visual studio.  If needed on the main menu use Debug -> Window -> Output
Now you can watch for the output of the Debug.WriteLine commands.
Look for the messages which start with “Response string:”, they will then be followed with the response from the web API surrounded in “[]” brackets.
<pre class="hljs cpp">
MainPage::OnNavigatedTo
InternetLed::New InternetLed
InternetLed::InitalizeLed
InternetLed::MakeWebApiCall
Response string: [100]
InternetLed::LedState::set Off
</pre>
Blinking LED
At this point your LED should be blinking on and off about once a second based on the value of the time string being returned from the web API.
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World Map of Makers

Hardware setup Connect the Raspberry Pi2 to the breadboard and the other components as per the Fritzing diagram at the bottom of the page. ...

Closed Loop Control, Remote Sensors and Remote UX on RPi3

Wall's Corners

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Title: Pulsating LED Cube
Author: Wall's Corners
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Pulsating LED Cube

Arduino-Powered Laser Turret

Wall's Corners

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Title: Arduino-Powered Laser Turret
Author: Wall's Corners
Rating 5 of 5 Des:

Are you bored? Might as well build a laser turret. You know – one that goes pew pew , shoots a red beam in lots of different directions, and...

Are you bored? Might as well build a laser turret. You know – one that goes pew pew, shoots a red beam in lots of different directions, and maybe even throw in a smoke machine? Yep, one of them.
<h2>What You Will Need</h2>
<ul>
<li>Arduino</li>
<li>2 servos</li>
<li>Laser module, such as one from <a target="_blank" href="http://bit.ly/2fmkjqH">this sensor kit</a></li>
<li>Piezo buzzer or other small output device</li>
<li>Metal wire and cable ties for fixing</li>
<li>Long female->male jump cables, plus regular jump cables</li>
</ul>
Optionally, a smoke machine is needed – the laser is pretty low wattage, so you won’t be able to see the beam without smoke even in a dark room.
<img alt="components" class="aligncenter size-full wp-image-299794" height="427" src="http://bit.ly/2fMUwXf" width="640" />
<h2>Build Plan</h2>
The basic idea of the turret is to put the laser module on top of one servo to provide horizontal rotation; then mount that package onto another servo placed at a 90 degree angle to provide vertical movement. We’ve got a piezo to provide the pew pew sound effects, and I’m throwing in a smoke machine for good measure.
<h2>Servo Testing</h2>
Depending on your servo, the wires may be coloured differently, but in general:
<ul>
<li>Red is the positive wire, and on both my servos it was the centre of three – to be connected to +5v rail.</li>
<li>Brown or black is the negative, to be connected to GND on the Arduino.</li>
<li>White or orange is the signal wire, to be connected to a PWM capable digital I/O pin (9 and 10 in the demo below).</li>
</ul>
Once you’ve wired up your two servos, upload the following sample code. I’ve named one servo “hori” to control the horizontal movement, and the other “vert”. Each should perform a full range of motion sweep (about 60 degrees, in my case).
<pre class=" language-c">
<code class=" language-c">#include <servo.h>
Servo vert,hori; // create servo object to control a servo
 // a maximum of eight servo objects can be created 
int pos = 0; // variable to store the servo position
void setup()
{
 hori.attach(9);
 vert.attach(10); // attaches the servo on pin 9,10 to the servo objects
 vert.write(0);
 hori.write(0);
}

void loop()
{
 for(pos = 0; pos < 180; pos += 10) // goes from 0 degrees to 180 degrees 
 { // in steps of 10 degrees 
 vert.write(pos); 
 hori.write(pos); // tell servo to go to position in variable 'pos' 
 delay(100); // waits 100ms for the servo to reach the position 
 } 
 for(pos = 180; pos>=1; pos-=10) // goes back from 180 degrees to 0 degrees
 { 
 vert.write(pos); // tell servo to go to position in variable 'pos'
 hori.write(pos);
 delay(100); // waits 100ms for the servo to reach the position
 }
}
</code>
</pre>
All good? Moving on then.
<h2>Testing the Laser and Pew Pew Sound</h2>
The laser module is just like an LED, but it has a resistor built into the module so we can hook it up directly to a digital I/O – very simple. If you’re using the same laser module as me, the “–” goes to GND, the S goes to pin 12. Modify the sample code above to make pin 12 an output:
<pre class=" language-c">
<code class=" language-c">int laser = 12;
pinMode(laser,OUTPUT);
</code>
</pre>
Then blink the pin on and off each loop using standard digitalWrite() method.
We’ll just use PWM to drive the piezo buzzer at a comfortable sound level – you could experiment with using the tone library if you wanted, but a simple noise is all I need. Connect the black wire to ground and the red wire to pin 11. Define your buzzer on the relevant pin, set to output mode, and activate using analogWrite(buzzer, 100) (or any number you want up to 254); and analogWrite(buzzer,0) to turn off.
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The full sample code modified to sweep two servo, activate a laser, and play the annoying sound, <a target="_blank" href="http://bit.ly/2fmkanm">can be found here</a>.
All your components should be working – now we need to tie it all together.
<h2>Creating the Turret</h2>
Using cable ties, attach one servo to the other; it doesn’t really matter which, just make sure one will move on the horizontal and the other will move the vertical. You can pull off the rotor blade and re-seat during testing if the angle isn’t right.
<img alt="servos" class="aligncenter size-full wp-image-299778" height="460" src="http://bit.ly/2fMVi6z" width="640" />
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Use some stiff modelling wire to fix the laser module to the blade of the other servo, like so:
<img alt="wire-for-laser-module" class="aligncenter size-full wp-image-299779" height="418" src="http://bit.ly/2fmkAd5" width="640" />
Finally, I attached the whole thing to a desk leg with yet more cable-ties and a bit of scrap wood.
<img alt="attach-turret-to-table" class="aligncenter size-full wp-image-299780" height="406" src="http://bit.ly/2fN0UOm" width="640" />
<h2>Programming the Turret</h2>
I don’t know about you, but my idea of a laser turret comes from countless numbers of sci-fi films and star trek episodes. Invariably someone will fly past a turret and little pew-pew shots will come flying out in a sweeping pattern, always milliseconds too slow so our protagonist doesn’t actually get hit. That’s what I’m trying to replicate, though feel free to tweak the main routine to suit your idea of what a turret should do.
Here’s the pseudo code I ended up using for the main loop:
<ul>
<li>Randomize time between bursts, and time between each individual shot.</li>
<li>Randomize the start and end position for each servo, vert and hori.</li>
<li>Randomize the number of shots to take.</li>
<li>Work out the number of degrees of change after each shot as the difference between start and end positions divided by number of shots.</li>
<li>Move the servos to the starting positions, and wait a little for them to get there (100ms)</li>
<li>Loop until all shots have been taken, each time moving the servos a little as previously calculated; move and shoot, move and shoot.</li>
<li>Repeat.</li>
</ul>
I also added a separate fire() method to structure the code a little better. Adjust the ranges of all random() functions to speed up or slow down each parameter; or increase the number of shots for a more dance club vibe. Scroll down for a video of the code in action!
<pre class=" language-c">
<code class=" language-c">#include <servo.h>

Servo vert,hori; // create servo object to control a servo

int pos = 0; // variable to store the servo position
int laser = 12;
int buzzer = 11;

void setup()
{
 hori.attach(9);
 vert.attach(10); // attaches the servo on pin 9 to the servo object
 pinMode(laser,OUTPUT);
 pinMode(buzzer,OUTPUT);
}

int vertChange = (vertEnd - vertStart) / numShots; //how much to move vertical axis by each shot
 int horiChange = (horiEnd - horiStart) / numShots;

vert.write(vertStart);//let it get to start position first, wait a little
 hori.write(horiStart);
 delay(100);

for(int shot = 0; shot<numShots; shot++){
 vert.write(vertStart);
 hori.write(horiStart);

vertStart += vertChange;//increment the vert value for next time
 horiStart += horiChange;

fire();
 delay(timeBetweenShots); //add a bit of variety to the speed of shots
 }
 delay(timeBetweenBursts);
}

void fire(){
 digitalWrite(laser,HIGH);
 analogWrite(buzzer,100);
 delay(20);//adjust this to change length of turret shot
 digitalWrite(laser,LOW);
 analogWrite(buzzer, 0); 
} 
</code>
</pre>
<h2>In Action</h2>
I don’t think there’s a practical use for this little toy, but it’s an awful lot of fun and there are a lot of variables you can tweak to get the desired effect. Perhaps it’ll come in handy for a homemade LEGO movie?
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