This 4X4 16-button keypad can be easily interfaced to any microcontroller, even an Arduino.
It can be used in security applications, data entry to embedded projects, access control.
Pin Number |
Pin Name |
Description |
1 |
R1 |
Taken out from 1st ROW |
2 |
R2 |
Taken out from 2nd ROW |
3 |
R3 |
Taken out from 3rd ROW |
4 |
R4 |
Taken out from 4th ROW |
5 |
C1 |
Taken out from 1st COLUMN |
6 |
C2 |
Taken out from 2nd COLUMN |
7 |
C3 |
Taken out from 3rd COLUMN |
8 |
C4 |
Taken out from 4th COLUMN |