If you press a button on the pad, the Arduino should print a message to the console and toggle the lock output state. Once your buttons are tested, you’ll probably want to try out your LEDs.

[Adnan.R.Khan] had a sliding door latch plus an Arduino, and hacked together this cool but simple app controlled door lock. Mechanically the lock consists of a Solarbotics GM3 motor, some Meccano, … ...

This kit uses a CD-ROM drive and an Arduino board to build a clever robotic lock. This dude used a bolt to create the project and it's voice activated.

Winner: Lock Your Drawer With an Arduino and RFID. Blake is in the midst of a home automation project. Needing a way to keep his 2-year-old out of his desk drawer full of electronic parts, Blake ...