2 Channel Pc USB Intelligent Control Relay Module

2 Channel Pc USB Intelligent Control Relay Module allows you to manage high-power electrical devices directly from your computer using a simple USB interface. This board integrates a high-performance HID controller chip, which eliminates the need for complex driver installations on most operating systems. Furthermore, the module provides a safe and reliable way to switch AC or DC loads by maintaining electrical isolation between your PC and the connected power circuits. Consequently, you can easily automate home appliances, industrial equipment, or laboratory setups with minimal programming effort. Therefore, this intelligent relay module represents an ideal solution for hobbyists and engineers who require a plug-and-play approach to computer-based hardware control.

Key Features:

• Driverless Operation: The module utilizes HID (Human Interface Device) technology, meaning Windows and Linux systems recognize it automatically without requiring third-party drivers.
• Dual Channel Control: Users can independently control two separate relays, allowing for the management of multiple devices from a single USB port.
• On-Board Power Indication: Each relay includes a dedicated LED to provide immediate visual feedback regarding the switching status of the channel.
• High-Quality Relays: The board features durable relays capable of handling significant current and voltage levels for both residential and industrial tasks.
• Robust USB Connection: A standard Type-B USB square interface ensures a secure and stable physical connection during long-term operation.

Technical Specifications:

• Input Voltage: 5 V_DC (Powered directly via USB)
• Current Consumption: ≈ 100 mA (When both relays are active)
• Relay Maximum Switching Voltage: 250 V_AC or 30 V_DC
• Relay Maximum Switching Current: 10 A
• Communication Protocol: USB HID (Human Interface Device)
• Contact Type: SPDT (Single Pole Double Throw) per channel
• Operating Temperature: −10°C to +60°C

Mechanical Specifications:

• PCB Material: High-grade FR-4 Double-sided Glass Fiber
• Relay Brand: Typically Songle or equivalent high-reliability manufacturer
• Terminal Blocks: Screw-type terminals for secure wire connections
• Mounting Holes: Four pre-drilled 3 mm holes located at each corner for easy enclosure mounting.

Dimensions:

• Board Length: ≈ 56.5 mm
• Board Width: ≈ 40.5 mm
• Total Height: ≈ 20.0 mm
• USB Connector Type: USB Type-B (Square)

Pinout and Wiring:

• USB Port: Plug this directly into your PC for power and data transmission.
• NO (Normally Open): The contact is disconnected when the relay is off; however, it closes when the USB command activates the channel.
• COM (Common): The main terminal where you connect your source power line.
• NC (Normally Closed): The contact remains connected when the relay is off and opens only when activated.

Datasheet Reference:

• Download 2 Channel USB Relay Module Instruction Manual

Commonly Used in:

• Home Automation: Controlling lamps, fans, and heaters via custom PC software or scripts.
• Server Management: Hard-resetting remote hardware by cycling the power line through the relay contacts.
• Laboratory Automation: Actuating pumps or valves in timed sequences for scientific experiments.

Applications:

• Software-Defined Switching: Integrating physical hardware control into Python, C++, or VB.NET applications.
• Smart Energy Management: Turning off peripherals automatically when the computer enters sleep mode or shuts down.
• Robotic Workstations: Providing a simple interface for PC-controlled robotic grippers or auxiliary tools.

Equivalent Models:

• Sainsmart USB Relay: A popular alternative that uses similar HID protocols and relay configurations.
• HID-USB-Relay-2: A generic version often found in open-source hardware projects with compatible command sets.
• Numato Lab 2 Channel USB Relay: An advanced version that however uses a Virtual COM Port (VCP) instead of HID for communication.

Package Includes:

• 1 x 2 Channel Pc USB Intelligent Control Relay Module