This project includes a smart and affordable door lock enhanced with a fingerprint interface. For implementing this project, we will be using the ARM microcontroller, a fingerprint sensor, gsm module, motor driver, a motor and some other hardware devices. The fingerprint sensor will be integrated in the door panel, facing outer side of the door, so that people can’t have access to the controlling system from outside. The latches will be fixed inside the door panel, so that the thickness of the door can help the latch’s strength. We’ll use a few latches within the panel to divide the force among them if tried to forced in. The fingerprint sensor will take the fingerprint of the user and forward it to the microcontroller to match with its records. If the print matches with one of the fingerprints of the microcontroller’s memory, the microcontroller will lock or unlock the latch, based on its current state. If the fingerprint is foreign to the microcontroller, the buzzer will buzz and the user will have to try again. If wrong fingerprints are tried 5 times at large, the system will text the owner to alert him/her about a break in. The system will also go into a secure state where it will continue to buzz the buzzer to alert the neighbours that something is wrong. The system will be reset once a known print will be entered.