5V Relay Module Single Channel

5V Relay Module Single Channel

Introduction

The 5V Relay Module Single Channel can be used to turn lights, fans and other devices on/off while keeping them isolated from your microcontroller. The 5V Relay Module Single Channel allows you to control high-power devices (up to 10 A) via the on-board relay.

Control of the 5V Relay Module Single Channel is provided via a 1 x 3 header – friendly to servo cables and convenient to connect to many development boards.

Specifications

• Supply Voltage-5V
• Control high-power devices up to 10 A with a simple high/low signal
• Provides isolation between the microcontroller and device being controlled
• Screw terminals for relay connections
• 3-pin servo-style header for power/signal interface
• Equipped with a high-current relay (10A @ 28VDC)
• 2xLED’s that show the current state of the relay

How to interface Single Relay Module with Arduino Uno?

Hardware and Software Required

• Single Relay Module
• Arduino Uno
• Arduino IDE

Hardware Connections

The relay module has three pins and it should be connected to Uno as follows:

• Vcc to 5V
• Gnd to Gnd
• IN to digital pin 8

Program for Single relay module

Upload the program given below to the Uno board.The relay will turn on and off with one second delay.

#define relay 8 void setup() { pinMode(8,OUTPUT); Serial.begin(9600); } void loop() { digitalWrite(8,HIGH); delay(1000); Serial.println(“Relay on”); digitalWrite(8,LOW); delay(1000); Serial.println(“Relay off”); }
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