for ODROID-X2 / U3 / U2 / XU / XU3 / C1 / XU4 / C0 / C2
USB to IO expansion board that provides GPIO/PWM/SPI/UART/I2C/ADC interfaces. It uses 3.3V/5V compatible PIC18F45K50-QFN USB Microcontroller. It includes 28 pin headers to make it easy to plug into a breadboard or other circuit. It has a bootloader that allows for downloading or upgrading the firmware.