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Archive for the ‘Automated Door’ Category

Adnan.R.Khan recently decided to give his room’s sliding door latch an upgrade by designing a mechanism to open and close it, using little more than an Arduino Uno and Bluetooth module. 

His automated device is operated via a smartphone app written in MIT App Inventor, and it employs a shield to control a small DC motor. The motor then pulls a cable wrapped around two pulleys in order to move the simple barrel latch in or out.

It’s an amazing display of what can be done with parts at hand and basic tools, and could certainly inspire other home security hacks. Be sure to check out the build process and the setup in action below! 

Tired of doing the mundane task of opening your door? This hack from Sieuwe Elferink takes care of that for you, using an Arduino Uno for control.

When someone comes within 50 cm of an ultrasonic sensor attached to the door, the Arduino uses an H-bridge relay to power a windshield wiper motor, which opens and closes it via a linkage setup. Another sensor is implemented on the opposite side of the door, allowing hands-free travel both ways!

Want to build your own? You can find instructions here, while code is available on GitHub.



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