This article uses touch screen to send commands to the MCU to control the relay and MFRC522 module.
How to realize a pattern lock algorithm as in your smart phone for ili9341 touch screens and Arduino IDE
Door access control By Qr code reader by e-paper (No battery)
The basics of a keypad explained simple and easy
We built a scalable oneM2M IoT system with real-time data, secure access, and seamless BLE handover.
Free sip&puff joystick for people with limited mobility, designed for quadriplegia. DIY construction manual available. Enhance accessibility
Added iPhone remote unlock & notifications to a Fermax 4+N analogue intercom using Shelly Gen4, PC817 and a buck converter.
A production loading-dock door system: PWA control, biometric login, role-based access, and full activity logging on an ESP32.
