Seeed Studio RS-485 Breakout Board for XIAO The RS-485 Breakout Board from Seeed Studio is a powerful and flexible expansion module designed specifically for all XIAO development boards. Features TP8485E Transceiver IC Converts UART serial data into RS-485 signals with high efficiency. Half-Duplex Communication Supports unidirectional data transmission over distances up to 1200 meters — perfect for long-range applications. Wide Voltage Support Operates on a single 5V or 12VDC power source for easy integration. 3-Pin Terminal Output Simplifies wiring for both signal and power connections. Built for Demanding Environments This breakout board is engineered for robust data transmission in: Large-scale deployments High-noise environments Industrial and embedded systems Its compact design and reliable performance make it an ideal choice for developers needing stable RS-485 communication across extended distances. Feature Seamless XIAO Compatibility Fully designed to work effortlessly with Seeed Studio XIAO development boards — plug, connect, and go! Long-Distance Communication Supports RS-485 data transmission up to 1200 meters (≈ 3973 feet) — perfect for remote or industrial applications. Wide Voltage Support Operates reliably with both 5V and 12V power supplies for flexible integration. Dual 3-Pin Terminals Equipped with two 3-pin terminals for easy connection of signal lines and power input. Compact & Efficient Design Sized at just 2 XIAO boards, this breakout board is ideal for space-constrained projects and embedded systems. What is RS-485? RS-485 is a robust and efficient serial communication standard designed for applications that require: Long-distance transmission Multipoint connectivity Strong noise immunity Thanks to its reliability and flexibility, RS-485 is widely adopted in industrial automation, communication systems, and remote monitoring. How Does RS-485 Work? RS-485 transmits data using two signal lines (A & B), enabling: Half-duplex communication Excellent resistance to electrical noise Up to 32 devices on the same bus Each device has a unique address for accurate data exchange When paired with the Modbus protocol, RS-485 becomes a powerful tool for efficient device communication and management across complex systems. RS-485 with Seeed Studio XIAO By integrating the Seeed Studio RS-485 Breakout Board with your XIAO development board, you unlock: High-speed, long-distance communication Access to the full XIAO ecosystem A compact, plug-and-play solution for industrial and IoT projects Whether you're building smart factories, sensor networks, or remote control systems, this breakout board delivers the reliability, range, and simplicity Specification Product Seeed Studio RS-485 Breakout Board Compatibility Seeed Studio XIAO dev boards, Adafruit QT Py Communication Interface RS-485 RS485 Chip TP8485E, half-duplex tranceiver Terminal Connection 3-pin terminal for signal wire and 3-pin terminal for power Communication Distance 1200 meters Transmission Speed 250k bps Hardware Overview Onboard Application Industrial Automation – Real-time control and monitoring of machinery and production lines Remote Monitoring Systems – Reliable data transmission across long distances for environmental or equipment tracking Data Acquisition Systems – Collecting and processing sensor data for analysis and reporting Embedded Systems with Serial Communication – Seamless integration into microcontroller-based projects requiring UART/RS-485 connectivity Part List Seeed Studio RS-485 Breakout Board x1
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