Shopping Cart

Key Features:

• Single channel relay module supports AC (250V) and DC (30V) loads

• Compatible with Arduino, Raspberry Pi, ESP8266, ESP32, STM32

• Optocoupler isolation ensures stable signal transmission

• Includes status LED indicators for relay operation

• Ideal for home automation, smart appliances, and robotics

Product Description (Detailed):

This 12V DC 1-Channel Relay Module is a reliable switching component that allows low-power microcontrollers to control high-voltage appliances and devices. It features a mechanical relay and optocoupler to provide safe and isolated signal transmission.

When connected to a microcontroller like Arduino or Raspberry Pi, the relay can be used to control bulbs, fans, pumps, and other devices. It is perfect for DIY electronics, IoT automation, and smart home systems.

Technical Specifications:

How to Use with Arduino:

Wiring Diagram:

Sample Code:

int relay = 7;

void setup() {
  pinMode(relay, OUTPUT);
}

void loop() {
  digitalWrite(relay, HIGH); // Turn ON relay
  delay(2000);
  digitalWrite(relay, LOW);  // Turn OFF relay
  delay(2000);
}

Caution: Do not power the relay directly from Arduino's 5V pin. Use a 12V external power supply.

Applications:

• Smart home automation

• Controlling lights, fans, and pumps

• IoT and cloud-based appliances

• Safety systems and alarms

• Motor and solenoid actuation

Package Includes:

• 1 × 12V 1-Channel Relay Module