NEW GUIDE: Adafruit MPR121 12-Key Capacitive Touch Sensor Gator Breakout #AdafruitLearningSystem #Adafruit @adafruit

Solder-free touch sensing with MPR121 and STEMMA QT!

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, it’s a no-solder solution to capacitive touch sensing.

The new Adafruit MPR121 12-Key Capacitive Touch Sensor Gator Breakout guide has everything you need to get started with your new MPR121 Gator breakout. Details about the board itself are on the Pinouts page. Learn how to wire it up and use it with both Arduino and CircuitPython. Find resources on the Downloads page.

Check out the full guide: Adafruit MPR121 12-Key Capacitive Touch Sensor Gator Breakout!


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

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