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Arduino iOS Blueprints by Fabrizio Boco

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Chapter 5. TV Set Constant Volume Controller

I don't watch TV much, but when I do, I usually completely relax and fall asleep. I know that TV is not meant for putting you to sleep, but it does this to me. Unfortunately, commercials are transmitted at a very high volume and they wake me up. How can I relax if commercials wake me up every five minutes?

Can you believe it? During one of my naps between two commercials, I came up with a solution based on iOS and Arduino.

It's nothing complex. An iOS device listens to the TV set's audio, and when the audio level becomes higher than a preset threshold, the iOS device sends a message (via Bluetooth) to Arduino, which controls the TV set volume, emulating the traditional IR remote control. Exactly the same ...

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