In this project we see how to make a walkie-talkie using an ESP32; audio data is transmitted via UDP or ESP-NOW transmission. So the Walkie-Talkie will work even without a WiFi network! The system is based on an I2S microphone and an I2S amplifier, but it will work equally well with analog microphones and headphones…
[…]In the third version I got a lot closer to the vision in my head. I designed some custom PCBs to mount addressable LEDs to instead of individually PWM-ing each Common-Cathode LED (I still have unplaced anger at whoever let me live so long without knowing about the WS2812). I was also able to use…
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