1 Channel 5V Relay Module with Optocoupler for Arduino & ESP32
1 Channel 5V Relay Module with Optocoupler for Arduino & ESP32
Product Overview
Control AC or DC loads safely with this 1 Channel 5V Relay Module featuring optocoupler isolation. Ideal for Arduino, ESP32, Raspberry Pi, home automation, IoT, industrial control, and smart electronics projects.
Description
The 1 Channel 5V Relay Module with Optocoupler is a compact switching module designed to allow low-voltage microcontrollers to safely control higher-voltage electrical loads. Built with an onboard relay and optocoupler isolation, it provides reliable switching while helping protect your control circuitry from electrical interference.
Compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, AVR, and PLC systems, this module is widely used in home automation, industrial automation, IoT projects, security systems, lighting control, motor control, and appliance switching.
The module features LED status indicators, standard control pins, and screw terminals for easy wiring of external loads. Its compact PCB design makes installation simple in both prototype and permanent projects.
Whether you're automating lights, controlling pumps, switching fans, or building smart home devices, this relay module offers dependable performance and straightforward integration.
Applications
- Arduino Projects
- ESP32 Projects
- Raspberry Pi Projects
- Home Automation
- Smart Home Systems
- IoT Applications
- Lighting Control
- Pump Control
- Fan Control
- Industrial Automation
- Security Systems
- Appliance Switching
- DIY Electronics
- Embedded Systems
Key Features
- Single Channel Relay Output
- 5V Control Voltage
- Optocoupler Isolation
- High and Low Voltage Circuit Isolation
- LED Power & Status Indicators
- Screw Terminal Connections
- Easy Microcontroller Interface
- Compact PCB Design
- Reliable Switching Performance
- Ideal for Automation Projects
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | 1 Channel Relay Module |
| Relay Channels | 1 |
| Control Voltage | 5V DC |
| Isolation | Optocoupler |
| Control Interface | Digital Input |
| Output Contacts | COM, NO, NC |
| Terminal Type | Screw Terminal |
| Status Indicators | Power LED & Relay LED |
Package Includes
1 Ã 1 Channel 5V Relay Module
Datasheet Summary
- Single Relay Output
- Optocoupler Isolation
- Screw Terminal Connections
- LED Indicators
- Microcontroller Interface
How It Works
The relay module receives a digital control signal from a microcontroller such as an Arduino or ESP32. The onboard optocoupler electrically isolates the control circuit from the relay circuit, improving system reliability. When activated, the relay switches between the Normally Open (NO) and Normally Closed (NC) contacts, allowing safe control of external electrical devices.