5V 2 Channel Relay Module for PIC ARM AVR DSP

Description

5V 2 channel relay module for PIC ARM AVR DSP

Relay contact capacity 250V10A. Relay output normally open, normally closed;

Low active. Relay signal input voltage range 5 V: 0-5 V;

System power supply VCC. Relay power JD-VCC. Default relay 5V. JD-VCC and VCC shorted.

Product description

This is a 5V 2-channel relay interface board, capable of controlling various devices and other equipment with high current. It can be directly controlled by a microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic).

1 . 2-channel 5V relay interface board, and each requires a driver current of 15-20mA

2 . Equipped with high current relay, AC250V 10A; DC30V 10A

Standard interface that can be directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)

4 . Relay output status indication

Technical sheets of all components are available, if not present in the product download card, send a message from the contact us module and we will publish as soon as possible on our website.

Tutorial: How to use 2 Channel 5V Relay Module

This 2-channel relay module is ideal for controlling electrical devices from a microcontroller like Arduino. It is suitable for both beginners and electronics experts.

What you need

• Arduino Uno or similar
• USB cable
• 5V power supply

Steps

1. Connect the relay module to the Arduino using the GPIO connectors.
2. Connect the power supply to the relay module (check the datasheet for specific pins).
3. Write and upload an Arduino sketch that activates/deactivates the relay channels.
4. Verify that the device connected to the relay turns on/off correctly.

Example code

// Definire i pin GPIO
const int relay1 = 2;
const int relay2 = 3;
void setup() {
pinMode(relay1, OUTPUT);
pinMode(relay2, OUTPUT);
digitalWrite(relay1, HIGH); // Disattiva il relè inizialmente
digitalWrite(relay2, HIGH);
}

void loop() {
digitalWrite(relay1, LOW); // Attiva il relè 1 per alcuni secondi
delay(5000);
digitalWrite(relay1, HIGH);
delay(5000);
digitalWrite(relay2, LOW); // Attiva il relè 2 per altri secondi
delay(5000);
digitalWrite(relay2, HIGH);
}

Mini project

Create an automatic control system for a lamp or fan using this relay module and a motion sensor. Configure the project so that the light turns on when something is detected and turns off after a few minutes.

Common mistakes

• Do not connect the correct voltage to the module.
• Set the Arduino GPIO pins to INPUT instead of OUTPUT.
• Omit the delay between relay states.
• Use a device that draws too much current for the relay.

Recommended accessories

• PIR Motion Sensor
• 12V Lamp
• Relay Shield
• LCD Module

Frequently asked questions

How can I control more devices?
Use a multiplexer module to map the Arduino GPIO pins to the relay channels.

What types of devices can the relay handle?
Devices that require a voltage below 250VAC/30VDC and a maximum current flow (check the datasheet).