A simple arduino keypad library to use minimum pins for a cascacde shaped keypad.
you can use this library using this simple schematic.
it shows you an example of keypad that only use 5 pins and make a keypad with 15 keys (5+4+3+2+1) avilable.
you can see how the wiring it is and how to hookup the Push buttons.
you can fiqure key numbers and pin numbers from below:
- /examples - Example sketches for the library. Run these from the Arduino IDE.
- Source files for the library (Gkeypad.cpp and Gkeypad.h).
- keywords.txt - Keywords from this library that will be highlighted in the Arduino IDE. (will be soon )
This product is open source!
Please review the LICENSE.md file for license information.
If you have any questions or concerns on licensing, please contact [email protected].