SALE EXTENDED! 15% off! Use the code BLACKFRIDAY15 on checkout *some restrictions apply.

June 23, 2014 AT 5:00 pm

DIY Fingerprint Scanning Garage Door Opener

Nodcah wrote this awesome tutorial for a DIY fingerprint scanning garage door opener. via Instructables

As a person without a car, I don’t need to carry keys around everywhere I go. Because of this, I’ve been locked out of my own house several times. It’s a pain to wait for someone with a key, so I thought I would do something about it.

This project is my way of solving this problem, while getting the chance to interface with an awesome fingerprint scanner (aka: FPS).

Also, this module isn’t restricted to just garage doors, for you can create different kinds of simple motorized locks to suit your needs.

Part List:
Fingerprint scanner (and JST connector)
Serial LCD kit (w/ATmega328)
PNP transistor
Speaker wire
3D printed case See step 9 for files
Copper tape
5V voltage regulator
9V battery
9V battery connector
SPDT limit switch


Tools: Soldering iron/solder
Electrical tape
Hook up wire/ jumpers
Wire cutter/stripper
Assorted resistors
A few LEDs for testing
5V FTDI board
Hot glue gun
Access to a 3D printer
Optional: IC holder (8 pin for ATtiny and 28 pin for ATmega)
Optional: Another Arduino board/10uF capacitor (see step 5 for details)

Full Tutorial

Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!

Maker Business — “Finally — some data on whether crowdfunding is a good investment or not”

Wearables — Sample code is your new best friend

Electronics — Meaningful gains

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !

1 Comment

  1. One of your better tutorials of late, thanks. Reason number 101 to buy a 3D printer.

Sorry, the comment form is closed at this time.