The CH32V307V-EVT-R1 is a development board based on WCH CH32V307 RISC-V microcontroller with an Ethernet port, an USB Type-C port, and eight UART interfaces accessible through headers.

Specifications:

• MCU: WCH CH32V307VCT6 32-bit RISC-V microcontroller @ 144 MHz as described above
• Networking: 10 Mbps Ethernet
• USB: 1x USB 2.0 Type-C port (480 Mbps), 1x USB 2.0 Type-C port (Full Speed: 12 Mbps)
• Expansion: MCU I/O expansion headers with 8x UART interfaces, and more
                         Arduino headers
• Debugging: SDI & UART header to download and debug CH32V307 firmware
                          USB-C port to connect to WCH-Link (selectable by jumper)
                          Misc – LEDs, Reset button, user button
• Power Supply: Switch to select USB or external 5V power supply
                                5V to 3.3V voltage regulator

Documentation :

• Datasheet
  
• Reference Manual

Tools and Software:

• IDE: MounRiver Studio (MRS)
• EVT (SDK & HDK)