This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.
This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.
Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.
Use a laser and a photo resistor to build a laser based point-to-point communication system. The best part? It's under $10.
Part 2 in the “How to Make an EFM8-Based Sound Synthesizer” series.
Part 2 in the “How to Make an EFM8-Based Sound Synthesizer” series.
You and your friends are planning the greatest party your hometown has ever seen. Just one problem: you don't have a…
You and your friends are planning the greatest party your hometown has ever seen. Just one problem: you don't have a karaoke system. What's a great party with no karaoke? We're about to fix that. All you need are a few potentiometers and an op-amp.
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