{"title":"Adafruit 12 x Capacitive Touch Shield for Arduino - MPR121","handle":"adafruit-12-x-capacitive-touch-shield-for-arduino-mpr121","url":"/products/adafruit-12-x-capacitive-touch-shield-for-arduino-mpr121","description":"The Adafruit Capacitive Touch Shield brings 12 channels of capacitive touch sensing to any Arduino using the MPR121 chip. Each sensor has a \"figure 8\" pad with holes designed for quick alligator clip connections — attach one end to the shield and the other to any conductive object like metal, fruit, or water-filled items to create instant touch interfaces.\n\nThe shield communicates over I2C (SCL and SDA), leaving most Arduino pins free for other tasks. For more permanent installations, you can solder directly to the pads instead of using alligator clips. The MPR121 handles all capacitive filtering internally with configurable sensitivity settings.\n\nKey Features\n\n\n12 Touch Sensors – Independent capacitive touch inputs with built-in filtering\n\nAlligator Clip Pads – \"Figure 8\" holes for quick, tool-free connections\n\nMPR121 Chip – Same sensor as the breakout version with configurable sensitivity\n\nI2C Interface – Uses only SCL and SDA pins\n\nArduino Shield Format – Plug-and-play with any Arduino board\n\n\nAlso Available\n\n\nMPR121 Capacitive Touch Sensor Breakout – Breadboard-friendly breakout format\n\n\nIdeal For\n\nInteractive art installations and exhibits\nMusical instruments (fruit drums, veggie keyboards)\nTouch-reactive games and controllers\nEducational projects exploring capacitive sensing\n\n\nPackage Contents\n\n1× Adafruit MPR121 Capacitive Touch Shield\n1× 36-pin header strip\n\n\n\nNote: Arduino, alligator clips, and conductive objects not included. Soldering required to attach the header onto the shield PCB.\n\n\nSpecifications\n\n\nSensor Chip – MPR121\n\nTouch Channels – 12\n\nInterface – I2C\n\nForm Factor – Arduino shield\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":9301,"title":"Default Title","sku":"AF-2024","price":25.93,"on_sale":false,"in_stock":true,"available_quantity":28,"option1":"Default Title"}]}