1-Channel 5V Relay Module with Optocoupler

1-Channel 5V Relay Module with Optocoupler

Safely control high-voltage and high-current devices like lights, fans, and motors with your low-power microcontroller using this 1-Channel 5V Relay Module. This is one of the most essential modules for any home automation, robotics, or IoT project, acting as a bridge between your Arduino or Raspberry Pi and the real world.

A relay is an electrically operated switch. This module uses a 5V signal from your microcontroller to control a mechanical switch capable of handling high-power AC or DC loads. The board features a high-quality Songle relay, rated for up to 10A.

For enhanced safety, this module includes an optocoupler that isolates your sensitive microcontroller from the high-power circuit, protecting it from voltage spikes. Onboard LEDs provide a clear visual indication of the power status (red) and when the relay is activated (green), making it easy to debug your projects.

Key Features:

• Channels: 1
• Control Signal Voltage: 5V TTL (compatible with most microcontrollers)
• Max Load (AC): 10A at 250V AC
• Max Load (DC): 10A at 30V DC
• Safety: Onboard optocoupler for electrical isolation
• Indicators: Power LED (Red) and Relay Status LED (Green)
• Connections: Screw terminals for easy and secure high-power connections (NO, COM, NC)

Applications:

This relay module is perfect for a huge range of applications, including home automation systems (controlling lights, fans, appliances), robotics (switching motors and solenoids), IoT projects (triggering devices over the internet), and general electronic switching tasks.