IOIO-OTG Hookup Guide - SparkFun Learn

Introduction The IOIO-OTG (pronounced “yo-yo-O-T-G"; the OTG stands for On-The-Go) is a development board specially designed to allow developers to add advanced hardware I/O capabilities to their Android or PC application. It features a PIC microcontroller, which acts like a bridge that connects an app on your PC or Android device to low-level peripherals like GPIO, PWM, ADC, I2C, SPI and UART. An