CH32V003 NanoC and CH32V003 NanoC Neo are small development borads for the CH32V003 SOP-8 and featuring USB-C power and data.

USB is realized in software using RV003USB.

The board comes with an USB bootloader compatible with minichlink. To enter the Bootloader, hold down the Button while plugging in USB.

• CH32V003J4M6 (SOP-8)
• Power LED (3.3V rail)
• Button (switching to GND) on D1 (used to enter Bootloader on Power-Up)
• LED or SK6812 RGB LED ("Neo" version) on A2
• USB-C for power and programming
• Solder jumper to select the USB D- Pull-Up source between 3V and C4

• A1/D6
• A2 (LED or SK6812 RGB LED data in)
• D1/D4/D5/SWIO (Button switching to GND)
• C4 (may be tied to USB D- via 1.5K)
• C2 (USB D-)
• C1 (USB D+)
• 3V
• GND
• 5V (directly connected to USB VBUS)