Project Overview The Password-Based Door Lock System is a security-focused project that uses an Arduino microcontroller, a keypad, an LCD, and a servo motor to create a cost-effective and efficient ...

The Password-Based Door Lock System is a security-focused project that uses an Arduino microcontroller, a keypad, an LCD, and a servo motor to create a cost-effective and efficient door lock mechanism ...

The touch sensitive lock uses the CapSense Arduino library. By turning the door handle into a touch sensor, [Rob] allowed a secret code to be saved in the EEPROM.

But none of these may be as secure as [mircemk]’s Arduino-based door lock that employs a smartphone’s flashlight as a pass code. At first blush, this seems horribly insecure.