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Sound Reactive Backlight Project


Here is twist the a backlit monitor project. Using a sound sensor these LEDs light up from sound adding a whole new dimension to a movie or gaming session!

Via Average Maker:

I’ve never really mixed my addiction to gaming with my love for electronics, however I finally found a cool way of merging the two in aggressive harmony.

Today I’m showing you my Arduino Backlight project – great for games, films and anything else noisy!

As you can see, when loud things happen, the Adafruit sound sensor picks that up, which makes the LEDs flare up behind my screen, adding an awesome immersion that makes it actually feel like I’m participating in hopeless trench warfare!

It’s all about loudness. Loud thing = flash.

You can learn more and get the full details here!



Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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