https://www.atomic14.com/2025/10/12/CH32V003-music.html

[utterances-bot]

10 Cent Music Machine | atomic14

I built a tiny coin‑cell music board around the $0.10 WCH CH32V003J4M6 (8‑pin, 48MHz RISC‑V, 16K flash/2K RAM). The PCB is just 16.3×11.7mm with a piezo buzzer and transistor, and in standby it sip...

https://www.atomic14.com/2025/10/12/CH32V003-music.html

[WithakErik]

This is pretty remarkable! Any recommendations for learning how to program/flash these sorts of chips? (I have some experience with Pi Picos and Arduinos)

[cgreening]

Theres quite an active community - you do need a WCH link programmer (though I think you can use an Arduino/ESP32).