ESP32-C3 SuperMini development board. Pin headers are already installed, and a case is included. Can be used to create custom keyboards and left-handed devices with USB and Bluetooth connections. I have confirmed the normal operation of the LED blink (LED lighting program) at the time of purchase. * Please be sure to read the profile before purchasing, as it contains information about discounts and shipping methods. #ESP32 #Arduino #ElectronicCraft #CustomKeyboard #LeftHandedDevice