This project demonstrates a GSM-based relay control system with call and SMS switching, featuring a whitelisting mechanism to control access. The system allows you to remotely control a relay using ...

Now that the relay is complete, place the top of the enclosure back on and secure it with the screws it comes with. Step 9: Using a breadboard and the Arduino Uno, build the circuit specified by the ...

Automating household or office systems can be achieved using an Arduino Nano, a passive infrared (PIR) motion sensor, and a relay. The primary aim is to create a control system that activates or ...

Abstract: Since criminality is rising in the 21st century, people want to secure their property and belongings. So, everyone in this situation needs a secure system with cutting-edge technology.