The ESP32 is one of the best microcontrollers on the market for building low-power sensors. By connecting a microphone (and sometimes a few additional components), the ESP32 can react to sound in some ...
Regular Christmas trees don’t emit light, nor do they react to music. If you want both things in a holiday decoration, consider this build from [dbmaking]. An ESP32-D1 mini runs the show here. It’s ...
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