We will create a smart contract that stores the device state in the IoTeX layer 1 blockchain and exposes functions for reading and changing the lock state. A simple smart contract for this tutorial is ...

Home » Blogs » Gadget Master » Arduino. Add to Bookmarks. By Alun Williams Posted on 2nd August 2024 | Modified on 15th August 2024. How to build a smart door lock. I’ve always been tempted by the ...

Circuit Diagram and Explanation: Circuit of this Smart Phone Controlled Digital Lock is simple; we only need to connect Bluetooth Module HC05 and TFT LCD Shield to the Arduino. TFT LCD shield can be ...

Whenever found correct, it will initiate unlock otherwise nothing will happen and the lock will remain intact. Fig 6. Code 3 Connection. Now connect the ESP32 Cam with FTDI, program it, and then ...

The development of smart home gadgets improves the security level in the house and at same time introduces some risks with these devices which are not aware before. This research improves the security ...