Adafruit 12-Key Capacitive Touch Sensor Breakout - MPR121

Key Features: Easy-to-use 12-channel capacitive touch sensor breakout board Supports only I2C, which can be implemented with nearly any microcontroller Select 1 of 4 addresses with the ADDR pin, for a total of 48 capacitive touch pads on one I2C 2-wire bus Handles up to 12 individual touch pads Updated in 2021 - Now featuring STEMMA QT connectors for quick connectivity 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.The MPR121 has support for only I2C, which can be implemented with nearly any microcontroller. You can select one of 4 addresses with the ADDR pin, for a total of 48 capacitive touch pads on one I2C 2-wire bus. Using this chip is a lot easier than doing the capacitive sensing with analog inputs: it handles all the filtering for you and can be configured for more/less sensitivity.This sensor comes as a tiny hard-to-s