Raspberry Pi Generates QR Codes to Unlock Gates and Doors
When it comes to home security, you can never be too diligent. That’s why a group of Polish students (Slawomir Sojka, Damian Prochaska, Jakub Ciemala, Nikodem Szlauer, Wojciech Droździk, and Hubert Wróblewski) put together this Raspberry Pi-powered QR code generating gate lock project, known as The IOT Lock (opens in new tab), that creates custom codes for guests to unlock gates and doors. Instead of relying on a single PIN or password, each QR code is unique and can be disabled whenever you like.
For this project to be effective, the Raspberry Pi must be secured. Therefore, it logs each event so users can monitor activity and ensure the door or gate access is appropriately assigned. According to the team, the idea is to replace the usual lock and key system with something more digital and accessible via smartphone.
Users can generate QR codes to unlock the door or gate using a web or mobile application. They can send the QR code to whoever needs access to the lock. In addition, a QR scanner reads and identifies the codes, which will trigger the unlocking mechanism while logging the event in a database. It ensures that access is granted to who you want and that the activity is tracked.