Fingerprint door lock using Arduino UNO,R305, LCD keypad shield and ULN 2803A IC 

 this is a fingerprint door lock system which is made with the help of Arduino UNO and R305 fingerprint sensor. This project can be used to open the door or a security system or a secure Almira where only selected user have right to open the door, this project is very easy to make and uses only a Uno and a prototype shield and a LCD keypad shield, and R305 fingerprint sensor and solenoid. The connection diagram are given in the description.