Using Sensor Data to Activate a 5V Relay on the Arduino - Circuit

Learn how to use an Arduino and a 5V relay to control a 120-240V lamp with the light detected by a a photoresistor.

Arduino Clap Switch: DIY Sound-Activated LED & Relay Project

Guide for Relay Module with Arduino

Relay with Touch Control - Arduino Tutorial

Arduino resets when signal sent to relay - Project Guidance - Arduino Forum

How to use 5V Relay on Arduino - ElectronicsHub

Can you use Arduino Digital I/O pins as GND and +5v? - Project Guidance - Arduino Forum

Solenoid valve with Arduino, Arduino interface with Solenoid Valve

5V Single Channel Relay Module Pinout, working, Interfacing, Applications

Arduino Relay Tutorial - Circuit Geeks