Digital 38kHz Infrared Transmitter Module
SKU: IOWC-1551
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Digital 38kHz Infrared Transmitter Module

₹41.00 (Inclusive of all taxes)
Out of Stock

This Digital 38kHz Infrared Transmitter Module provides a stable 940nm IR signal for remote control and sensing applications. Operating at 5V DC, it is designed for easy integration with microcontroller GPIO pins for Arduino, Raspberry Pi, and other embedded platforms.

Features

  • Generates a precise 38kHz modulated infrared signal compatible with standard IR receivers.
  • Operates at a 5V DC supply voltage for direct compatibility with common development boards.
  • Features a built-in LED indicator for immediate visual feedback on transmission status.
  • Compact plug-and-play design simplifies integration into automation and control projects.
  • Provides a reliable transmission distance of approximately 1.3 meters under typical conditions.

Out of stock

Description

The Digital 38kHz Infrared Transmitter Module is a dedicated component for generating modulated infrared control signals. It operates at the industry-standard 38kHz carrier frequency, ensuring reliable communication with compatible IR receiver modules for accurate command transmission and distance sensing.

Engineered for stability, the module outputs a consistent 940nm wavelength infrared beam with an emission angle of about 20 degrees. Its 5V logic-level interface allows for straightforward connection to microcontroller digital pins, making it an ideal hardware layer for building custom remote controls, proximity sensors, or interactive installations.

Key Features

  • Generates a digitally modulated 38kHz infrared carrier signal.
  • Integrated status LED provides real-time visual confirmation of signal transmission.
  • Designed for plug-and-play operation with a standard 5V DC power supply.
  • Compact form factor enables easy mounting and integration into space-constrained projects.
  • Delivers stable and consistent IR output for reliable communication with receivers.
  • Ideal for prototyping remote control systems, obstacle detection, and interactive triggers.

Applications

  • DIY infrared remote controls for home appliances and multimedia systems.
  • Proximity and obstacle detection in robotics and automated guided vehicles.
  • Interactive art installations and museum exhibits requiring touchless triggers.
  • Simple data transmission links for short-range, line-of-sight communication.
  • Educational projects demonstrating infrared communication and sensor principles.

Technical Specifications

Signal TypeDigital Infrared (IR)
Operating Frequency38 kHz
Infrared Wavelength940 nm
Supply Voltage5 V DC
Emission AngleApprox. 20 degrees
Typical Transmission DistanceApprox. 1.3 m (at 5V)
Operating Temperature-25°C to +85°C
Storage Temperature-30°C to +100°C
Dimensions (L x W x H)30 mm x 20 mm x 7 mm
Weight2 g

Frequently Asked Questions

What microcontroller voltage is required to drive this IR transmitter module?

This module is designed for a 5V DC supply. Connect the VCC pin to your microcontroller's 5V output, GND to ground, and the signal pin to any digital GPIO pin. Ensure your development board, like an Arduino Uno or similar, can provide a stable 5V rail. The module draws minimal current, making it compatible with most board regulators.

How do I generate the correct 38kHz signal to transmit data?

You must generate a modulated 38kHz square wave on the module's signal pin. In Arduino IDE, use the `tone()` function or a hardware timer to create the carrier. To send commands, pulse this carrier on and off according to your chosen protocol (e.g., NEC, Sony). The module's LED will illuminate when the signal pin is driven high, confirming transmission activity.

What is the typical range and line-of-sight requirement?

Under ideal conditions with a 5V supply, the module achieves a transmission distance of approximately 1.3 meters. The infrared beam has a 20-degree emission angle, requiring a relatively direct line of sight to the receiver. For longer ranges, ensure minimal ambient IR interference and consider using a receiver with higher sensitivity. Reflective surfaces can sometimes extend the effective range.

Package Includes

  • 1 x Digital 38kHz Infrared Transmitter Module

Additional Information

Weight 0.002 kg
Dimensions 3 × 2 × 0.7 cm

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