FINGERPRINT BASED DOOR LOCK SYSTEM

For this, we use a microcontroller to enable the door opening or closing if the matching between scanned data and the already existing data is correct. Comparison is done inside the fingerprint module itself and its output is given to microcontroller. Result is displayed in an LCD display whether the user is authorized or not. LCD also helps to make troubleshooting easier. Alarming option is provided turn about an unauthorized usage. Microcontroller used is PIC16F877. For this, we use a microcontroller to enable the door opening or closing if the matching between scanned data and the already existing data is correct. Comparison is done inside the fingerprint module itself and its output is given to microcontroller. Result is displayed in an LCD display whether the user is authorized or not. LCD also helps to make troubleshooting easier. Alarming option is provided turn about an unauthorized usage. Microcontroller Used Is PIC16F877. v Project Objectives :- Our project “Finger print-based door lock system” provides freedom from mental and physical stress faced by individual while moving away from their home. Stored fingerprints are retained even in the event of complete power failure or battery drain. With biometric door locks, your fingerprint is the key. They replace keyed locking mechanisms with a fingerprint sensor that actually recognizes who is and who is not authorized to enter. If the fingerprint matches, the door will be opened automatically otherwise the buzzer connected to an audio amplifier will be activated so that the people near the surroundings will get an alert. This system is built with open-source hardware.