1 Channel 5V Relay Module

The 1 Channel 5V Relay Module is a compact relay board that enables low-voltage microcontrollers to safely control high-voltage AC or DC loads. Operating on 5V DC, it is compatible with Arduino, ESP32, Raspberry Pi, STM32, and other development boards, making it ideal for home automation, robotics, and industrial control projects.

Features

• 5V DC operating voltage
• Single-channel SPDT relay
• Supports AC and DC load switching
• Onboard transistor driver
• Flyback protection diode
• Power and relay status LEDs
• Standard 3-pin control interface
• Easy PCB mounting

Pin Configuration

Control Pins

• VCC – 5V Power Supply
• IN – Control Signal Input
• GND – Ground

Relay Output Terminals

• COM – Common Terminal
• NO – Normally Open Contact
• NC – Normally Closed Contact