Product Overview
The HW 481 infrared transmitter module is designed to emit infrared light signals for communication and detection applications. It contains a high intensity IR LED that transmits infrared signals when powered. This module is commonly used in remote control systems object detection circuits and IR communication experiments. It operates with low voltage and is suitable for Arduino PLC trainer boards and embedded systems.
Key Features
• Function Type: Infrared signal transmission module
• Emission Source: High intensity IR LED
• Operating Voltage: Low voltage DC operation
• Compatibility: Works with Arduino and microcontrollers
• Compact Size: Small PCB design for easy integration
• Low Power: Low current consumption
• Mounting: PCB mounting holes provided
Technical Specifications
• Product type: Infrared transmitter module
• Model: HW 481
• Operating voltage: 3.3 V to 5 V DC
• Emission wavelength: Approximately 940 nm
• Output type: Infrared light emission
• Interface pins: VCC GND S
• Working current: Low current consumption
• Weight: 0.003 kg
• Dimensions: 2.0 cm × 1.6 cm × 1.2 cm
Suitable for
• IR remote control projects
• Object detection systems
• Automation communication circuits
• Arduino learning experiments
• Robotics signal transmission
• Educational electronics projects
Package Includes
• One HW 481 infrared transmitter module
Installation Notes
Connect VCC to 3.3 V or 5 V supply and GND to ground. The signal pin can be connected to a digital output of the controller to control emission. Ensure correct polarity to avoid damaging the IR LED.









