Raspberry Pi Pico RS485 Module (RS4910) Compact, high-performance RS485 transceiver add-on board designed exclusively for the Raspberry Pi Pico. Enables reliable long-distance, noise-immune serial communication for industrial automation, IoT gateways, and multi-node networks. Key Features Onboard MAX4910 (or compatible) full-duplex RS485 transceiver Supports baud rates up to 10 Mbps ±15 kV ESD protection on RS485 bus pins 3.3V logic level (direct Pico compatibility, no level shifter needed) Automatic direction control (no need to toggle DE/RE pins manually) Isolated version available (optional 2500V DC isolation isolated DC-DC power) On-board 120Ω termination resistor (jumper selectable) 4-pin PH2.0 connector screw terminal for easy field wiring LED indicators for TX/RX activity Stackable headers – keeps all Pico GPIO accessible Technical Specifications Supply Voltage: 3.3V (powered directly from Pico) Communication: UART (supports Hardware Serial on Pico) Bus Nodes: Up to 256 nodes (with 1/8 unit load transceiver) Max Distance: Up to 1200 meters @ 9600 bps Dimensions: 52 × 21 mm (Pico form factor) Applications Modbus RTU networks Industrial PLC communication DMX512 lighting control Long-range sensor networks Building automation (BACnet, etc.) Robotics and CNC control Package Includes 1 × Robokreeda Pico RS485 Module (RS4910) 1 × Set of stacking headers (unsoldered) Optional: 4-pin cable screw terminal block Transform your Raspberry Pi Pico into a powerful industrial-grade RS485 node with the Robokreeda RS4910 — robust, plug-and-play, and ready for the toughest environments!
