Qwiic Keypad Hookup Guide
With the Qwiic connector system, assembling the hardware is simple. All you need to do is connect your Qwiic Keypad to Qwiic enabled microcontroller with a Qwiic cable. Otherwise, you can use the I2C pins, if you don't have a Qwiic connector on your microcontroller board. Just be aware of your input voltage and any logic level shifting you may need to do.