Ever since the first Linux capable single-board computers came out, there have been projects turning them into handhelds. The Raspberry Pi Zero and in particular the Compute Modules are ideally ...
Tanaka Masayuki’s PCMFlow722 library enables (half-duplex) two-way real-time HD voice over ESP-NOW on ESP32 boards with a speaker and a microphone, effectively transforming them into walkie-talkies.
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