Boardoza THVD1552 Full-Duplex RS485 to UART Breakout Board
This board is designed to convert RS485 communication to UART interface, making it ideal for industrial automation, smart home systems, and long-distance communication projects. The module uses independent differential pairs for transmit (Y/Z) and receive (A/B) lines, ensuring reliable full-duplex communication in high-noise environments.
Equipped with a reliable RS485 transceiver IC, it provides noise-resistant and stable differential communication. Through the UART interface, it can easily connect with microcontrollers such as Arduino, ESP32, STM32, Raspberry Pi, and many others.
Key features:
- Status LEDs (TX, RX, Power) allow you to monitor communication activity at a glance.
- 120 Ω termination resistors ensure signal integrity over long cable runs.
- Simple pin headers make integration with existing systems quick and easy.
With its compact size and robust circuit design, this RS485-to-UART module is suitable for a wide range of applications, from maker projects to professional industrial systems. Digital I/O settings work with both 3V3 and 5V.
Key Features
- THVD1552 transceiver signaling rate: up to 50 Mbps; achievable link speed depends on cable length and signal integrity
- Full-duplex RS485 communication (separate TX and RX lines: Y/Z and A/B)
- Easy integration with standard UART interfaces
- 120 Ω termination resistors on both TX and RX lines for improved signal integrity
- Status LEDs (TX, RX, Power) for real-time monitori
- Up to 196 bus nodes (THVD1552 transceiver specification)
- Integrated Bus I/O Protection – ± 30 kV HBM ESD – ± 18 kV IEC 61000-4-2 ESD Contact Discharge – ± 25 kV IEC 61000-4-2 ESD Air-Gap Discharge – ± 4 kV IEC 61000-4-4 Electrical Fast Transient
- Power, TX, and RX indicators for easy communication monitoring.
- Noise-resistant differential signaling for stable long-distance data transfer.
- Termination resistors, ensures signal integrity over extended cable lengths.
Technical Specifications
- Item
- B-THVD1552-BRK
- Supply Voltage
- 4.5 V to 5.5 V
- Functions
- RS485 to Uart
- Output current, driver
- -60 \~ 60 mA
- Output current, receiver
- -8 \~ 8 mA
- Operating Temperature
- -40/+125°C
- Board Dimensions
- 40x20mm
- I/O Voltage
- 3.3V - 5V
- Transceiver Signaling Rate
- Up to 50 Mbps (link-dependent)
Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.