USB IO Board 
- USB to IO expansion board for GPIO/PWM/SPI/UART/I2C/ADC interfaces
- 3.3V/5V compatible PIC18F45K50-QFN USB microcontroller is mounted
- Breadboard-friendly 28pin header pins
- Bootloader for firmware download / upgrade
- Any computer with a USB port
- Systems with only a microUSB port available will need a USB OTG adapter cable to use this item.
- USB IO forum at http://forum.odroid.com/viewforum.php?f=87 in the "Topics" section under "Announcements"