2020-05-06
Remote Door Opening System
Somehow the door lock of the house got unusable, because an object prevented the key from entering the hole. Maybe someone put something into it, or it just got dirty by itself. Either way, i took a Pi Zero W and a MG996R Metal Gear Servo, developed the front end and back end, and eventually got my Remote Door Opening System up and running. I stuck another Raspberry Pi to the window as a WiFi extender, and from now on, a connected smartphone can enter the house simply by touching a button without using a traditional door key.
I bought the Pi Zero W sometime ago, and it did not have a GPIO header attached. To get all the soldering clean and right was not easy. But i did it, and i have recorded this on video too. I also have set up a computer fan at the side, so i'm not inhaling the soldering fumes. I demonstrated the function of the pins by sticking and running an electronic paper display on it. I like how i handled the problem by using technology. My experience in programming and the Raspberry Pi lets me combine software and hardware to make the real world a little bit more liveable. And by the way, we got the door lock working again.