Boardoza IrDA Transceiver Breakout Board

The Boardoza IrDA Transceiver is a compact infrared communication breakout board designed for reliable short-range wireless data transfer using modulated infrared light. The board integrates both an infrared transmitter and a demodulating infrared receiver, enabling digital data transmission and reception through a simple TXD/RXD interface. It supports operation with both 3.3V and 5V systems, making it compatible with a wide range of microcontroller platforms.

The onboard hardware-driven LED indicators provide instant visual feedback for power, transmission, and reception activities, making debugging and communication monitoring extremely convenient during development. With its compact footprint and integrated infrared communication circuitry, this board is ideal for embedded wireless links, short-range wireless control systems, educational electronics projects, robotics, and custom infrared serial communication applications.

Front Side	Back Side

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Key Features

• 38 kHz Infrared Communication: Supports reliable infrared wireless data transfer using a 38 kHz modulated carrier frequency.
• Integrated IR Receiver Circuit: Features a built-in demodulating infrared receiver for clean and stable digital signal output.
• Wide Voltage Compatibility: Operates seamlessly with both 3.3V and 5V microcontroller platforms.
• Real-Time Status Indicators: Dedicated hardware LEDs provide instant visual feedback for data reception (D2) and data transmission (D3) activity.
• Simple Digital TXD/RXD Interface: Provides straightforward MCU communication through TXD input and RXD output pins.
• TX Echo Functionality: Transmitted data is internally echoed to the RX output for easier debugging and monitoring.

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Technical Specifications

Model: IrDA Transceiver
Manufactorer: Boardoza
Functions: Infrared Data Transmitter & Receiver
Input Voltage: 3.3V – 5V
Communication Type: Asynchronous Serial
Carrier Frequency: 38 kHz
Maximum Data Rate: Up to 1250 bps
Infrared LED Wavelength: 940 nm
Transmission Range (3.3V): Up to 430 cm
Transmission Range (5V): Up to 600 cm
Indicator LEDs: RX (Yellow), TX (Green)
Receiver Type: Demodulating IR Receiver Module
Operating Temperature: -40°C to +85°C
Board Dimensions: 20mm x 20mm

Warning: The TXD pin directly controls the IR transmitter stage and must only be driven with short data pulses. Applying a continuous HIGH level to TXD may cause excessive current through the IR LED/driver circuit and can permanently damage the board.

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Board Pinout

( J1 ) Communication Connector

Pin Number	Pin Name	Description
1	VCC	Power Supply Input
2	RXD	Data Receive Output
3	TXD	Data Transmit Input
4	GND	Ground

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Board Dimensions

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Step Files

Boardoza IrDA Transceiver.step

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Datasheet

VSMB10940 Datasheet.pdf

IR Receiver Module Datasheet.pdf

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Version History

• V1.0.0 - Initial Release

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Support

• If you have any questions or need support, please contact [email protected]

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License

This repository contains both hardware and software components:

Hardware Design

All hardware design files are licensed under Creative Commons Attribution-ShareAlike 4.0 International License.

Software/Firmware

All software and firmware are licensed under BSD 3-Clause License.