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 ...

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 ...

“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 ...

This project is designed using normally-closed reed switches connected to doors and windows and additional passive infrared (PIR) motion sensors to detect movement of a burglar or an unwanted intruder ...