4 x 1 keypad module is a module with 4 buttons with numbers 1 to 4. This keypad module is used in input projects
Application:
Data entry for microcontroller
Menu or data selection
Password lock
In general password lock household or industrial devices
Specifications:-
Maximum rating: 24 VDC, 30 mA
Easy to interface with the controller, processor, and Ar duino
Adhesive backing
Thin design
Product Includes:-
1 x 1 X 4 keypad module