Required Hardware
The Keypad library allows your Arduino to read a matrix type keypad. 4×4 numeric keypads are most widely used in numerous mini project which requires the user or the operator to give command to the system or to feed in some data
Wiring 4×4 Keypad with Arduino
To wire your 4×4 Keypad to your Arduino, connect the following pins:
- Keypad Pin 1 –> Arduino Pin 9
- Keypad Pin 2 –> Arduino Pin 8
- Keypad Pin 3 –> Arduino Pin 7
- Keypad Pin 4 –> Arduino Pin 6
- Keypad Pin 5 –> Arduino Pin 5
- Keypad Pin 6 –> Arduino Pin 4
- Keypad Pin 7 –> Arduino Pin 3
- Keypad Pin 8 –> Arduino Pin 2
Recommended Software
- none
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