Using a little Arduino programming the fingerprint reader checks to see if you have access and if approved the Arduino Mega development board unlocks the door using a micro servomotor.

Group entry hacks are a favorite for hacker social groups. Why use old fashioned keys when you can use newfangled electronic keys? If you are looking to build a simple RFID-based security system to… ...

I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

Continue reading “Pepper Mill Locks Your Door” → Posted in classic hacks Tagged door lock , motor , pepper , pepper grinder Simple RFID Door Lock System ...

He has fashioned an Arduino-powered door bolt that locks itself whenever you open an incognito browser window. Always nice when a computer gives you a helping hand.

The system here uses a cheap Arduino board, a few sensors, and a magnetic contact switch. It’s then hooked into the Adafruit IO and connected to IFTTT, so you can set up alerts in any way you like.