(keypad: columns and rows switching) So now you can see how the button presses can be translated into electrical data for use with a microcontroller. We can now start the real experiment with as ...

If you want to add a keypad to your Arduino project, the options are pretty limited. There’s that red and blue 4×4 membrane we’ve all seen in password-protected door lock projects,… ...

Posted in Arduino Hacks, home hacks Tagged arduino, arduino keypad lock, automated door lock, keypad ← Deconstructing Apollo Flight Hardware A Nightmare On CNC Street → ...