attached servo on lock with nuts and bolt
In this tutorial, we will make the door lock with an Arduino based RFID door lock. You can watch the following video or read the written tutorial below for more details.
Radio-frequency identification uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID tag consists of a tiny radio transponder; a radio receiver and transmitter. Wikipedia
Insert a bolt in the mounting flange and mark on the door lock like a shown in the photo
make a hole in the door lock
insert a 4 bolt in the lock's hole
attached servo on lock with nuts and bolt
glue servo control horn with door lock handle
Here are schematics diagram of Arduino and module make its connection accordingly
After all connection upload following code in Arduino
DIY door lock is ready for installation
the door lock is attached with door
Door lock installation
Now it's ready to work without the key
it can also be open with the switch which is placed on the box
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