NEW GUIDE: Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout #AdafruitLearningSystem #Adafruit @adafruit @blitzcitydiy

The TCA8418 has the ability to act as your I2C multi-tool for handling keypads, buttons or LEDs. It has 18 total ‘I/O’ pins, 10 columns and 8 rows. Additionally, it has a 10-element event queue, so even if you don’t get to the interrupt immediately, keypress and release events will be held for you.

The Adafruit TCA8418 Keypad Matrix and GPIO Expander guide has everything you need to get started with using this keypad breakout. There’s pages for overview, pinouts, CircuitPython, Arduino and download resources.

Check out the full guide: Adafruit TCA8418 Keypad Matrix and GPIO Expander

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Filed under: arduino, Breakout Boards, CircuitPython, Keyboards, stemma, Stemma QT —
Tags: , , , , , — by Liz Clark

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