CircuitPython School – sensing touch with the MPR121 breakout board #CircuitPython @gallaugher

John Gallaugher shows how you can write CircuitPython code to detect capacitive touch using the under $7 Adafruit MPR121 STEMMA QT 12 Key Capacitive Touch Gator board.
While this build is demonstrated using an Arduino Nano RP2040 Connect, it’ll work on any CircuitPython board with a STEMMA-QT cable or port (like Feather RP2040, ed.). We’ll demo how to sense touch, then offer a challenge and show a solution for lighting up a NeoPixel strip with different colors, based on the pad that is touched. Part of Prof. Gallaugher’s CircuitPython School & his Physical Computing university course.

See the video below:


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