Fingerprint Scanner Set Up with Raspberry Pi - Unlock With Biometric Control!

Today we will set up an Adafruit Optical Fingerprint Scanner to enroll fingerprints to be recognised. Then well use our fingerprints to control attached hardware (LED and Solenoid). We will even produce digital images of the enrolled fingerprints.
Full Article (with scripts and terminal commands) - https://core-electronics.com.au/guide...

Related Information

Set Up a Raspberry Pi as a Desktop Computer - https://core-electronics.com.au/guide...
How to use Raspberry Pi Imager - https://core-electronics.com.au/guide...
Control a 12V Solenoid With a Raspberry Pi - https://core-electronics.com.au/guide...
How to use a PiRelay HAT for Raspberry Pi (Used for Solenoid Control here) - https://core-electronics.com.au/guide...
Face Recognition with Raspberry Pi and OpenCV - https://core-electronics.com.au/guide...
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Biometric Identification uses unique physical attributes, that are not easy to replicate, to identify a user. Extraordinarily everyone on Earth has Unique Fingerprints (which makes for almost 80 billion fingers), so lets explore what we can do with these biometrics. This Adafruit Optical Fingerprint Scanner captures a fingerprint and will return a confidence value if it find it to be a matching enrolled fingerprint. Remarkably this little scanner can store 300 Unique Fingerprints in its non-volatile flash memory. This means even when you completely de-power the system this Scanner will still remember all your enrolled fingerprints.

Any connected micro-controller (like an Arduino Uno) or micro-processor (like a Raspberry Pi 4 Model B) can communicate with it through TTL (UART) serial. The data sent allows the process to enroll new fingerprints, create digital images of captured fingerprints, or for reporting back detected fingerprints. This means you can utilise fingerprints to control GPIO-connected hardware.
GPIO (General Purpose Input and Output) pins can be used to control an almost endless amount of sensors and mechanisms, like solenoids to unlock doors, LEDs to brighten your day, or any component your project requires. GPIO is truly the gateway to the rest of the world.

There are three main types of fingerprint readers in use today, Optical, Ultrasound, and Capacitance. Optical Fingerprint Sensors are the traditional method and are the style utilised in this guide. Check the written up guide for more information on these different styles.

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Adafruit Optical Fingerprint Scanner (used here) - https://core-electronics.com.au/catal...

Raspberry Pi 4 Model B (4GB) Ultimate Kit Bundle (AVALIABLE!) - https://core-electronics.com.au/raspb...

Raspberry Pi Model B 2GB (Used here): https://core-electronics.com.au/catal...

Adafruit Rugged Panel Mount Fingerprint Sensor (Capacitance) - https://core-electronics.com.au/catal...

12V Solenoid (Used here) - https://core-electronics.com.au/catal...

PiRelay V2 HAT (Used here) - https://core-electronics.com.au/catal...

Solder-less Breadboard - https://core-electronics.com.au/catal...

Raspberry Pi 4 Power Supply: https://core-electronics.com.au/catal...

0:00 Intro
0:20 Fingerprint Scanner Overview
0:50 What You Need
1:11 Assembly of Hardware
2:18 Software Set Up
3:20 Main Python Fingerprint Script Set Up
4:23 Running Main Script to Enroll a New Finger
5:00 Success! Correctly Identified an Enrolled Finger
6:06 Hardware and Script for LED Fingerprint Control
6:59 Success 2! Enrolled Fingerprint Controls LED!
7:27 LED Fingerprint Control Script Exploration
8:42 12V Solenoid Fingerprint Control
9:05 Where to Now
9:18 3D Printed Wall Mount for Fingerprint Scanner
9:33 Create a Digital Image of Your Fingerprint
10:04 Outro!