RS-485 Breakout Board

This is a breakout board for the SP3485 RS-485 transceiver IC, which will convert a UART serial stream to RS-485. The SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps. This board requires a very low amount of power and can operate from a single +3.3VDC supply.

This breakout board includes the SP3485 RS-485 transceiver, filter capacitor, and other components shown on the schematic. We've broken out the RS-485 output to three different connections: (1) an RJ-45 connector, (2) a 3-pin spring terminal, and (3) a 0.1" pitch header; none of these output connectors come populated.

RS-485 Breakout Board Features:

  • Fully equipped with SP3485 RS-485 transceiver and supporting components
  • Operates from a single +3.3V supply
  • Interoperable with +5.0V logic
  • RS-485 input/output broken out to RJ-45 connector, 3.5mm screw terminal, and 0.1" pitch header
  • Driver/Receiver Enable connected to RTS line
  • -7V to +12V Common-Mode Input Voltage Range
  • Allows up to 32 transceivers on the serial bus
  • Driver Output Short-Circuit Protection

Dimensions: 0.9x1.0"


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RS-485 Breakout Board

  • Manufacturer: SparkFun
  • Product Code: RS485BB
  • Availability:  2 - 3 weeks
      - Backorder not allowed
  • £9.54

  • Ex Tax: £7.95

  • 10 or more £7.44


Tags: RS-485, rs485, Breakout, Board, BOB-09823, SP3485, RS485BB, transceiver, bob-10124, SparkFun