Android I/O board 
This board contains a PIC-microcontroller (PIC16F1938 to be more precise) that translates ASCII-commands received via a serial link to I/O operations on the microcontroller's port pins. The 22 pins can be used for digital I/O, ADC, capacitive sensing switch, PWM and counter. The serial link can be established via WiFi, Bluetooth (2.0 and 4.0) or USB.
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