Before you continue, remember that if you will connect the relay to High Voltage then incorrect connection or improper use could result in serious injuries or death. So be very caution of what you are ...

In this application i have included 2 relays for two different electronic appliances to control via SMS. Relay 1 can be Switch on by sending SMS with "POWERON1" and Switch off by sending SMS with ...

“Arduino Self-Timer” project presented here is a low-component count 60 seconds countdown timer. It can be powered from a 9V compact battery or suitable Arduino AC mains adaptor. Working of the ...

IN - This pin is also called the control pin because it is used to control the output of the relay. COM - is connected to the device you intend to connect. NC - terminal is connected to the COM ...

LED Blinking is a very common and almost first program for every embedded learner or beginner. In which we blink an LED with some delay. So today we are here with the same project, but here we will ...

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 ...

This simple GSM security switch project is based on Arduino Nano microcontroller (MCU) and SIM800L GSM modem (Fig. 1). The cellular-based alert system is configured to send an SMS in response to a ...

This project proposes the creation of a standalone alarm system based on an Arduino Nano board (ATmega328P) combined with a BK A7670E 4G GSM module. The system allows for remote activation and control ...