Datasheet

Overview
Add lots of touch sensors to your next microcontroller project with this easy-to-use 12-channel capacitive touch sensor
breakout board, starring the MPR121. This chip can handle up to 12 individual touch pads.
© Adafruit Industries
https://learn.adafruit.com/adafruit-mpr121-12-key-capacitive-touch-sensor-breakout-
tutorial
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