Android Controlled RGB Lights

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Here’s a handy hack for an Android controlled, Arduino driven, RGB light setup.

[Kerimil] recently wrote up this project on the Arduino.cc, and is sharing all of the source code and plans. While many of our seasoned Arduino-lovers can easily throw together the code for an RGB LED circuit in their sleep, [Kerimil] also threw in the Android app, and the source file to be modified in App Inventor, an Android app development program originally released by Google, but now maintained by MIT.

We’ve seen many commercial versions of this product, but it’s nice to see one that can be easily hacked to our liking. Next up is writing an app to use the phone’s camera to identify colors and reproduce them with the LED! While you’re at it, why not mix it with an easy to build infinity mirror!

To see the board and app in action, check out the video after the break.

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Beginner’s Android/Arduino example shows the power of App Inventor

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This is a simple project. It uses an Android device to switch an LED driven by the Arduino. Connectivity is provided by the Bluetooth module inserted in the breadboard. But one look at the UI on the Android device and you might think this is anything but simple. The truth is that [Kerimil] didn’t spend forever learning Java and programming the app. Instead he’s showing off the power of  App Inventor to get your Android controls up and running fast.

Check out the third button down; when was the last time you added voice commands to your project? It’s worth clicking through to see just how simple that portion was. App Inventor — a Google cast-out that is now maintained by MIT — is a graphical tool that unlocks the power of an Android handset to those with the most basic of programming understanding. For instance, the voice controls shown off after the break are provided by a single bracket which uses conditional statements to ‘listen’ for the words on, off, and blink. You’ll find the voice recognition diagram after the break as well.

You could try to go completely graphical with this project. There’s the option of programming the Arduino side of the project in a similar way.

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