Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout - STEMMA QT / Qwiic

Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout - STEMMA QT / Qwiic

Marsoni

M251S

$10.00

Get it in 3 business days with 1 day shipping. 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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Reviewed in the United States on September 16, 2025

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meryl S

Natrona Heights, US

★★★★★ 3

Small Skices

Size: 14 Ounce (Pack of 1)

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Reviewed in the United States on December 12, 2025

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Lexington, US

★★★★★ 5

Healthy treat

Size: 14 Ounce (Pack of 1)

My dog's love them

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Reviewed in the United States on April 22, 2026

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