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

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Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout - STEMMA QT / QwiicThe Adafruit TCA8418 Keypad Matrix and GPIO Expander Breakout is a versatile I2C GPIO expander and keypad matrix driver that packs a lot of power into a small package. With 18 total I O pins, including 10 columns and 8 rows, this chip is perfect for handling keypads, buttons, or LEDs in your projects. You can use it to create a keypad matrix with up to 80 switches, or configure the pins as individual GPIO inputs or outputs. Key Features: GPIO
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Waukegan, US
★★★★★ 5
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Size: 13, Color: White Napa Leather
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Reviewed in the United States on June 8, 2026
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Sam Nyambi
Carnegie, US
★★★★★ 5
The ideal business casual shoe for men.
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Reviewed in the United States on May 15, 2026
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Darrell Fuller
Lake Worth, US
★★★★★ 5
Perfect multi purpose shoe!
Size: 13, Color: White Napa Leather
Great fit and look great!
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Reviewed in the United States on April 28, 2026
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Grantham, US
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Great shoes and great quality.
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Reviewed in the United States on April 18, 2026
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Chelsea, US
★★★★★ 5
Marc Joseph New York Men
Size: 9, Color: Black Napa Leather/Black
Awesome Black Mens Shoe Awesomr fit!
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Reviewed in the United States on February 14, 2026

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