4 Channel 5V Relay Module Board | Relay Switch for Arduino, Raspberry Pi & IoT Automation

Technical Specifications

• Channels: 4
• Operating Voltage: 5V DC
• Trigger Voltage: 5V logic level
• Relay Output:
  • AC: 250V 10A
  • DC: 30V 10A
• Control Signal Type: Digital (Low-level or High-level depending on module)
• Isolation: Optocoupler isolation for protection
• Indicator LEDs: Relay status LEDs on each channel
• Interface Pins: VCC, GND, IN1, IN2, IN3, IN4
• Mounting Holes: Yes, for easy installation
• Compatible Microcontrollers: Arduino, Raspberry Pi, ESP8266, ESP32, ARM, PIC, AVR
• Use Cases: Home automation, smart switching, industrial control, IoT, appliances control, robotics, motor & pump control

Technical Descriptions
The 4 Channel 5V Relay Board is a reliable and easy-to-use switching module designed for controlling high-voltage devices using any low-voltage microcontroller such as Arduino, Raspberry Pi, ESP8266, ESP32, PIC, AVR, ARM, and more.
Each relay can handle AC and DC loads, making it ideal for home automation, robotics, industrial control, smart agriculture, and IoT projects.

Featuring optocoupler isolation, the module provides excellent protection for your microcontroller by electrically isolating the control side from the load side. With onboard indicator LEDs, it ensures clear visual feedback for each relay state.