Next up we need to prepare our power supply to provide power both to the raspberry pi which requires 5v and to the door lock which requires 12v and is triggered using the relay switch.
Raspberry pi front door lock.
Making a digital door lock smart with a raspberry pi by christian cawley news 7th august 2018 while a standard lock can be made smart by adding a servo several systems can be purchased that help you do this digital keypad locks can also be enhanced.
Using a rfid reader and pin entry system access to buildings departments and rooms is controlled in a secure efficient and cost minimizing system.
Prepare dual voltage 5v 12v power supply to power raspberry pi and electronic door strike simultaneously.
Raspberry pi and solenoid lock are connected through the relay module.
Due to this a 12v adapter is used to power the solenoid lock.
See how we built it including our materials code and supplemental instructions on hackster io.
Solenoid lock requires 9 to 12v and raspberry pi can provide only 5v.
Pi lock is an automated door security system built around the raspberry pi.