On the subject of house safety, you possibly can by no means be too diligent. That’s why a bunch of Polish college students (Slawomir Sojka, Damian Prochaska, Jakub Ciemala, Nikodem Szlauer, Wojciech Droździk, and Hubert Wróblewski) put collectively this Raspberry Pi-powered QR code producing gate lock mission, often known as The IOT Lock (opens in new tab), that creates customized codes for company to unlock gates and doorways. As a substitute of counting on a single PIN or password, every QR code is exclusive and may be disabled everytime you like.
For this mission to be efficient, the Raspberry Pi should be secured. Due to this fact, it logs every occasion so customers can monitor exercise and make sure the door or gate entry is appropriately assigned. In keeping with the crew, the concept is to switch the standard lock and key system with one thing extra digital and accessible through smartphone.
Customers can generate QR codes to unlock the door or gate utilizing an online or cellular utility. They will ship the QR code to whoever wants entry to the lock. As well as, a QR scanner reads and identifies the codes, which can set off the unlocking mechanism whereas logging the occasion in a database. It ensures that entry is granted to who you need and that the exercise is tracked.
Within the mission’s demonstration, the crew makes use of a Raspberry Pi, a movement sensor, a CM2D QR scanner, a 12V relay, and an 8GB microSD card. Though, you will get away with altering a couple of parts to fit your mission wants. There are plans to replace the system to be appropriate with one other microcontroller, the ESP32, to save cash and add flexibility.
The system features a internet app with a graphic interface that makes it straightforward to regulate settings, generate QR codes, and act as an administrator over the gate entry. You may even create groups of customers to ship QR codes and grant them entry as a crew moderately than per consumer. Go to the official mission web page at GitHub (opens in new tab) to get a detailed take a look at the software program used within the mission.
If you wish to recreate this Raspberry Pi mission, take a look at the weblog publish on The IOT Mission (opens in new tab) web site for an in-depth take a look at the way it goes collectively. You may also discover a detailed take a look at its development over at ElectroMaker (opens in new tab).
