WeAct Studio CH32X035F8U6 CH32 USB PD Core Board RISC-V

The board is supported by the MounRiver Studio IDE (based on Eclipse) and can be programmed via the Arduino IDE using community-developed cores. It uses a 1-wire Serial Debug Interface (SDI) for flashing and debugging, requiring a compatible WCH-Link or similar RISC-V debug probe. Official toolchains and SDKs are available from WCH for low-level register access and peripheral configuration.

The board accepts a 3.3V or 5V DC input via its designated power pins. In active mode at 48MHz, expect current draw in the tens of mA range. For low-power operation, utilize the Sleep or Standby modes via firmware to reduce current to microamp levels, which is critical for battery-powered IoT deployments. Always ensure your power supply can provide stable voltage within these ranges.

The MCU provides USART, I2C, and SPI hardware interfaces, accessible via the board's GPIO pins. For I2C sensors, connect SDA and SCL lines with appropriate pull-up resistors. For SPI devices, connect MOSI, MISO, SCK, and a chip select GPIO. The integrated 10-bit ADC can read analog sensors directly. Refer to the pinout diagram to identify the specific pins assigned to each peripheral function.