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MPR121

Breakout V12 Capacitive Touch Sensor

This is a breakout board for Freescale's MPR121QR2 The MPR121 is a capacitive touch sensor controller driven by an I2C interface

The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode

The MPR121 also features eight LED driving... pins. When these pins are not configured as electrodes, they may be used to drive LEDs.

There a four jumpers on the bottom of the board, all of which are set (closed) by default.

An address jumper ties the ADD pin to ground, meaning the default I2C address of the chip will be 0x5A.

There is no regulation on the board, so the voltage supplied should be between 2.5 and 3.6VDC.

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