This project allows you to control an LED (or any other device) remotely using SMS commands via the SIM800C GSM module. The code is designed to turn an LED on or off based on the content of received ...

SMB has unveiled a new open source Arduino SMS switch box and gateway they have created called the SensorMessageBox, which is Arduino compatible and provides a simpler way to control SMS messages from ...

It is very easy to build an “SMS-controlled relay” with the help of a cheap GSM modem module and a small microcontroller board. Here, I’m using the SIM800L and Arduino Nano V3 to develop a nifty ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

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