Want to use a Keypad in your Arduino projects but running out of Pins? @BrainybitsCanada
Want to use a Keypad in your Arduino projects but running out of Pins? @BrainybitsCanada
Uploaded March 2019 | Updated September 2026, 1 week ago
Keypads need a lot of Pins to connect to an Arduino, but by using an I2C Expander module you drop this down to only two!
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Want to use a Keypad in your Arduino projects but running out of Pins?

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