Adafruit MPR121 12-Key Capacitive Touch Sensor Gator Breakout

Key Features Easy-to-use 12-channel capacitive touch sensor breakout board Handles up to 12 individual touchpads with plug-and-play STEMMA QT connector and large alligator/croc-clip friendly pads Support for reading data over I2C, which can be implemented with nearly any microcontroller Safe to use with any 3V or 5V microcontroller/processor like Arduino 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 touchpads with plug-and-play STEMMA QT connector and large alligator/croc-clip friendly pads, its a no-solder solution to capacitive touch sensing.The MPR121 has support for reading data over I2C, which can be implemented with nearly any microcontroller. You can select one of 2 addresses with the ADDR pin (solder it close for the alternative address), for a total of 24 capacitive touch pads on one I2C 2-wire bus. Using this chip is a lot eas