Custom R4 Board Improved Blue Version Minima / WIFI Compatible with Ard R4 Manufacturer

[] 1】The board is compatible with the official Version.

[] 2】An additional row GPIOs has been added for convenient extra expansion.

[] 3】In the WIFI version, the USB port can be switched between the main chip and ESP32.

[] In the official version, soldering with a soldering iron is required for the switch.

[] In our improved version, a DIP switch is used for switching, making it more convenient.

[] UNO-R4-Minima-B x1

[] UNO-R4-WiFi-B x1