How to Make a Keypad Lock With an Arduino

learn how to make a cheap electronic keypad door lock using an Arduino and a keypad. By hooking up the 8 pin keypad to the Arduino, as well as a green/red LEDs, and also a servo motor, we can lock and unlock anything using a 3 digit code. Just download the code with the link above and upload it to your Arduino, then mount the servo to your lock and put the keypad on the other side, and you now have your self a cheap easy keypad lock. If you like this video, check out some of my others at