Create your own fingerprint lock, no longer forget the key

Create your own fingerprint lock, no longer forget the key

As a bad memory person, always forgetting the key is a very tragic thing. I have been locked out several times, waiting is an annoyance. I decided to change. I will never forget my finger, so I want to make a fingerprint recognition switch.

Create your own fingerprint lock, no longer forget the key

Required components: ATtiny85 microcontroller, GT-511C1 fingerprint scanner, buzzer, 7805 voltage modulator, NPN transistor, 9V battery, 9V battery button, LCD display module, wire.

Create your own fingerprint lock, no longer forget the key

Tools required: FTDI Basic Breakout, Arduino (for programming ATtiny85), hot glue guns, drill bits, etc.

Create your own fingerprint lock, no longer forget the key

Design principle model diagram.

Create your own fingerprint lock, no longer forget the key

Circuit diagram.

Create your own fingerprint lock, no longer forget the key

Connection Diagram.

Create your own fingerprint lock, no longer forget the key

Connect the parts on the breadboard for testing.

Create your own fingerprint lock, no longer forget the key

Set up the fingerprint scanner. Http://F24/WRJC/HW0FUO3Z/F24WRJCHW0FUO3Z.ino

Create your own fingerprint lock, no longer forget the key

Programming for ATtiny85, this is the associated wiring diagram.

Create your own fingerprint lock, no longer forget the key

Connection programming, program address: http://FBQ/Y1BR/I834W0UY/FBQY1BRI834W0UY.ino

Create your own fingerprint lock, no longer forget the key

Once the test is complete, it can be assembled.

Create your own fingerprint lock, no longer forget the key

Solder each module.

Create your own fingerprint lock, no longer forget the key

Put a protective gel in a suitable place.

Create your own fingerprint lock, no longer forget the key

buzzer.

Create your own fingerprint lock, no longer forget the key

control unit.

Create your own fingerprint lock, no longer forget the key

3D printer case.

Create your own fingerprint lock, no longer forget the key

Create your own fingerprint lock, no longer forget the key

Limit switch: Start detection when the front cover of the detector is removed.

Create your own fingerprint lock, no longer forget the key

Install the components into the cabinet.

Create your own fingerprint lock, no longer forget the key

Install this to my garage door and connect it to the hand-operated electric door lock, at which point the front cover is closed.

Create your own fingerprint lock, no longer forget the key

The battery and control unit are installed indoors.

Create your own fingerprint lock, no longer forget the key

have a test.

Create your own fingerprint lock, no longer forget the key

You can also put it on the safe.

Create your own fingerprint lock, no longer forget the key

The battery is loaded inside the box, which uses a normal servo motor.

Create your own fingerprint lock, no longer forget the key

Of course, because the mechanical structure of the lock is made of iron bars and wooden blocks, the safety is certainly not too high.

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June 11, 2024