Electronic and Arduino enthusiasts ... board unlocks the door using a micro servomotor. The DIY biometric lock is also equipped with three push buttons and a 16×2 LCD display.

[Andrea] just sent us this great student hack he made for his room. He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made out of ...

Though the building already had electronic switches in place, unlocking the doors required mashing an aging keypad or pestering ... relay that drives the locks. You may recall [Shawn’s] RFID ...

Instead, how about a door that locks itself? That’s exactly what Mike, CEO of the Useless Duck Company, has made. He has fashioned an Arduino-powered door bolt that locks itself whenever you ...