Opening garage door with fingerprint

There are still majority garages that can be opened with regular key. This is probably least secure way of protecting property – especially with standard locks. As you may know, most of standard locks can be picked in a minute. In order to be more safe, better install more secure lock with sophisticated key or go with electronic based system. Joebarteam have shared his instructable, where he built a fingerprint lock system for his garage. The basics of electronics is built around Arduino micro which reads electronic finger print scanner through serial interface. A bunch of limit switches ensure that closed, opened rood is detected correctly, also there are few fail-safe mechanism implemented that makes system power efficient and even safer. Mechanical lock is moved with stepper motor and seems really well made. Whole electronics is assembled and organized very tidy and looks professional. Everything is put in to enclosures, some of them are standard, other 3D printed. Wiring is placed in to electric pipes. This project is great example how project has to be finished to the final stage. Continue reading

Securing lock with Arduino based RFID

RFID based security or entrance systems are pretty common in many areas. Basically it is not considered very secure way of locking very important objects, but for low level security or staff registering it is ideal solution. JOJO have shared his simple build of RFID based door lock controlled by Arduino. He used common RFID reader module which is accessed from Arduino via serial interface. Only single signal wire is needed as this is one way comm. Program is straight forward – tag IDs are stored in code as array, so if you need to add new or change tag, you need to reflash Arduino. Since this project is more tutorial than real life project it doesn’t activate anything, just keeps count of reads. It can be easily extended for your own needs by adding few lines of code. Continue reading

Room door automated keylock

Any type of keylock on the door usually is signaling that this area is more or less private and not everyone is welcome without permission. Outside doors usually have more serious locks installed, but if you need to add entry control to your room you may go with simpler solution – keypad operated door lock. Simplest solution requires an Arduino, keypad and DC motor with belt pulley. Motor is controlled using H-bridge driver. When uses inputs correct code on keypad, motor unlocks door and keeps it open for 5 seconds and then locks again. The lock even has an audible output when lock king mechanism is activated. Speaker is also gonna be upgraded to knocking sensor in future. Other things like status LED and IR led for remote also may be added. Continue reading

Lock Your Door Automatically

Everyone at some part of their life wanted that no one should enter their room or garage in their absence. This project will guide you how to this using a controller, a RFID reader and a little bit of control mechanisms. The components used were basic Arduino 168 chip, along with a RFID reader and the electric door lock. Initially you might have to install the ready-made electric door lock and test with a battery of suitable power to ensure that the door lock in installed correctly or not. Generally while installing, one would want that no current flows through the electronic door lock when the door is in locked state. The reader is placed on the outside of the door and is separated from the controller on the inside so that no one can interfere with the security by breaking Reader and trying to short circuit the reader. The controller receives serial data from the Reader and controls the RGB led and the Door lock. Continue reading