Arduino Relay Control Tutorial with Code and Circuit Diagram

In this arduino relay control tutorial we will simply learn How to interface a Relay with Arduino. Here we are not using any Relay Driver IC like ULN2003 and will only use an NPN transistor to control relay.

Arduino Relay Tutorial: Control High Voltage Devices with Relay Modules - Latest Open Tech From Seeed

Relay Module with Arduino

Arduino Relay Tutorial - Control High Voltage Devices with Arduino

ESP32 Relay with Arduino Code: Control AC Appliances

Lesson 22 – 1-Channel Relay Module «

How to Power Light Bulbs Using an Arduino With a Relay Module - IoT Tech Trends

Control 16 channel relay with CD74HC4067 Multiplexer and Arduino with 6 wires - Robojax

Arduino - Relay Arduino Tutorial

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