Learn how to make a smartphone controlled internet connected deadbolt actuator powered by a raspberry pi that can be added onto your existing door lock without any modifications to the door.
Raspberry pi 3 door lock.
Once we have raspberry pi prepared and connected to the wifi network yes that s important we can take care of preparing the environment for our program which will be responsible for several key things.
Pi lock is an automated door security system built around the raspberry pi.
You can create an internet connected smart door lock using your raspberry pi 3 single board computer.
Prepare dual voltage 5v 12v power supply to power raspberry pi and electronic door strike simultaneously.
It can be unlocked over a wifi connection using a smartphone and a custom app.
A project for all models of raspberry pi.
R1 is a current limiting resistor so that neither the raspberry pi output pin nor the 2n3904 transistor draw too much current.
The door lock can be controlled by multiple smartphones.
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.
The lock itself uses a simple 12v solenoid that is driven using a relay and 2n3904 transistor which is controlled by the raspberry pi.
Raspberry pi 3 any version solenoid lock.
Circuit diagram for face recognition door lock using raspberry pi is given below.
Raspberry pi and solenoid lock are connected through the relay module.
Raspberry pi smart phone connected door lock.
To be alive raspberry pi needs an operating system and in our case it will be raspbian stretch light.
Solenoid lock requires 9 to 12v and raspberry pi can provide only 5v.
Build your own security system using a raspberry pi rfid reader a relay 12v power supply and a magnetic door lock.