Design and build a smart lock device for your existing door lock, integrating an Atmega328 microcontroller, HC-05 Bluetooth module, and relay module, enabling remote operation from any paired Android device.

In this project, we will guide you step-by-step on how to build a comprehensive prototype of a smart lock with minimal cost, even if you have limited experience with various components (AVR chips, Bluetooth, Android). By following the steps in this tutorial, you can still successfully build this project.

EaseLock - OneEase[^]:java: