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DFRduino RS485 Shield

SKU: DFR0259

The DFRduino RS485 Shield is specifically designed for Arduino controller boards, enabling seamless conversion from UART to RS485. It features a standard RS485 port, mini RS485 port, and RS485 headers, along with welding areas to facilitate DIY design. The shield supports both automatic and manual transmission modes, broadening its application scope for various projects. This versatile tool enhances communication capabilities for Arduino enthusiasts, making it a valuable addition to any project requiring robust RS485 connectivity.

Angled shot of RS485 Shield for Arduino with gold pins and colored connectors-DFRobot product sku:DFR0259 image.

Downloadable Resources

  • Docs
  • Tech Specs

    • Specification

    Parameter Details
    Power module +5.0V
    Digital IO port 16 (including a I2C interface)
    Analog IO port 6 and power
    Switch An operation/programming mode switch
    An automatic/manual transceiver mode switch (When in manual transceiver mode, the enable end is the 2nd digital IO port)
    Indicating LED Transceiver indicating LED
    Interface Standard RS485 interface, mini RS485 interface(PH2.0) and RS485 pins
    Area A weldable area
    Button a reset button
    Module size 55mmx53mm

    Pinout

    DFR0259-Pinout

    Operation and programming mode switch: To OFF, you can download the program for the Arduino controller. To ON , the shield will convert the UART to the RS485.
    Transceiver mode switch: To AUTO, the shield is automatically sending and receiving data, so you do not care about operation timing; To MANU, the shield is in manual transceiver status, and the enable end is the 2nd digital IO port. Enabling high-side power Ping to sending state while the low level of the receiving state.

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