The Boardoza RS485 3V3 Transceiver Breakout Board is a compact and reliable communication interface built around the HTC Korea MAX485 RS-485 transceiver. This module is designed for long-distance half-duplex communication, offering automatic flow control, low-power operation, and robust differential signaling for electrically noisy environments.
With its stable and interference-resistant communication capabilities, this board is ideal for industrial automation, sensor networks, embedded communication systems, and building management applications.
| Front Side | Back Side |
|---|---|
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- Maker-Friendly RS-485 Integration: Easily add long-distance wired communication to Arduino, ESP32, STM32, Raspberry Pi, and more.
- Fully Automatic Flow Control: No need for RE/DE pin handling—just connect TX/RX and start communicating instantly.
- Highly Noise-Resistant Signaling: Differential transmission ensures stable communication over long cables and in noisy environments—ideal for robotics, CNC systems, and industrial setups.
- Native 3.3V Compatibility: Directly interfaces with modern MCUs without requiring extra level shifters.
- Low-Power Design: Suitable for battery-operated IoT systems and remote sensors.
- Fast Data Transmission: Supports communication speeds up to 10 Mbps.
Manufacturer: HTC Korea
Model: MAX485
Input Voltage: 3.3V
Voltage Input Type: Screw terminal / 4-pin header
Interface: RS-485 (Half-Duplex)
Logic Level: 3.3V
Data Rate: Up to 10 Mbps
Receiver Input Range: ±7V
Functions: RS-485 Transceiver Module
Operating Temperature: –10°C ~ +70°C
Board Dimensions: 40mm × 40mm
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | TXD | Module TXD Pin |
| 3 | RXD | Module RXD Pin |
| 4 | VCC | Power Input (3.3V) |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | TXD | Module TXD Pin |
| 3 | RXD | Module RXD Pin |
| 4 | VCC | Power Input (3.3V) |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | COM | Common Ground |
| 2 | B | Inverting Driver/Receiver Line |
| 3 | A | Non-Inverting Driver/Receiver Line |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | COM | Common Ground |
| 2 | B | Inverting Driver/Receiver Line |
| 3 | A | Non-Inverting Driver/Receiver Line |
Boardoza RS485 3V3 Transceiver Breakout Board.step
- V1.0.0 – Initial Release
For technical questions or assistance, please contact [email protected]
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