


Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout - STEMMA QT / Qwiic
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Friday, May 29
Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout - STEMMA QT / QwiicThe Adafruit TCA8418 is a versatile and powerful I2C GPIO expander and keypad matrix driver. Featuring 18 total I O pins arranged as 10 columns and 8 rows, it supports up to 80 buttons in a matrix configuration, or can be used as individual GPIO inputs or outputs. This chip includes a 10 element event queue for key press and release events, and provides interrupt output on the INT pin. It supports features such as pull ups, debounce filtering, and
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