In a recent article in Elektor magazine, [Clemens Valens] describes the construction and software for an ESP32 walkie-talkie ... The DIY Walkie-Talkie circuit diagram. (Credit: Clemens Valens ...

The student teams recorded their progress on hackaday.io with project descriptions, logs, BOMs, diagrams ... color changing LED bulb, but features a nice custom board for the ESP32 and neopixel ...