https://www.cnx-software.com/2024/01/04/wch-risc-v-mcu-arduino-ide/
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WCH RISC-V microcontrollers can now be programmed with the Arduino IDE - CNX Software
WCH has announced Arduino support for their RISC-V microcontrollers such as the 10 cents WCH32V003 or the features-rich WCH32V307 MCUs.