The Arduino 4 Relays Shield is a solution for driving high power loads that cannot be controlled by Arduino's digital IOs, due to the current and voltage limits of the controller.

How to program Arduino to control the relay shield. The detailed instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with …

Aug 11, 2015 · The Arduino 4 Relays Shield works with Arduino Uno, Uno SMD, Mega, Zero, Due, or Leonardo. Each relay can be independently controlled and provides a 2 pole changeover.

Jul 16, 2025 · In this tutorial we will learn how simple it is to use Arduino 4 channel Relay Shield to control a 12V light bulb. Find this and other hardware projects on Hackster.io.

Jul 17, 2025 · In this tutorial we will learn how simple it is to use Arduino 4 channel Relay Shield to control a 12V light bulb. In first example the light bulb will just blink and in the second …

Jan 11, 2023 · The Relay Shield features four high quality relays and provides NO/NC interfaces, four dynamic LED indicators to show the on/off state of each relay, and the standardized …

This official Arduino relay shield features four high-quality relays with optical isolation, each capable of switching loads up to 24VDC at 2A or 250VAC at 5A. The shield includes screw …

Oct 7, 2025 · Learn the basics of how relays work, and how to control the four relays onboard the Arduino 4 Relays Shield

Aug 30, 2024 · What is an Arduino Relay Shield? An Arduino Relay Shield is an expansion board that sits on top of your Arduino board, providing it with the ability to control high-voltage …

Overview: The Arduino 4 Relays Shield is a solution for driving high power loads that cannot be controlled by Arduino's digital IOs, due to the current and voltage limits of the controller.