You can find various versions of this library through specialized electronics repositories or community projects.
If you encounter any issues while downloading or using the Proteus 4x4 keypad library, here are some troubleshooting tips:
Click , and then hit the Play (Simulation) button at the bottom left of your screen.
Ensure that all microcontroller pins connected to the keypad columns have their internal pull-up resistors activated, or add physical 10k-ohm pull-up resistors to the columns in the schematic layout to prevent floating input pins.