Complete Arduino Code and Demonstration Video is given at the end of this project. Here, we are defining the Pins for Relay, LED and LDR. #define relay 10 int LED = 9; int LDR = A0; Setting up the LED ...

Download "sms_call_gate.ino" Sketch from the repository and Upload it to Arduino ... code open the serial monitor , set the baudrate to 9600. It will help you to see the response of module on sms and ...

This approach uses (at least) 3 LDR's between the rails and all are used for detection purposes. The ambient light they see does not need to be constant but should affect them all more or less ...

This project is meant to control electrical appliances like fans and lights. You can configure two Yoda modules, one as receiver and the other as transmitter, to control relays that switch on fans and ...

The proposed system is implemented using a GSM shield module on microcontroller (Arduino®) together with LDR sensor and relay. Existing metering system can be minutely modified to implement the ...

LilyGo T-Relay-8 is an ... and a separate 8-relay “Arduino” module, and also integrates optocouplers for improved safety. The board can be programmed with the Arduino IDE or PlatformIO, and LilyGo ...

Tip: learn how to power light bulbs using Arduino with a relay module. This method only works on Arduino boards ... On loop(), add power to one pin, pause the code for 1000 milliseconds (1 second), ...