RS-485 Breakout Board

RS-485 Breakout Board: an embedded 10-Mbps transceiver

The RS-485 Breakout Board by Sparkfun was specially designed for more easily connecting and using the SP3485 RS-485 module, a unidirectional transceiver acting as an UART to RS-485 adapter. It allows you to transmit your UART data via an RS-485 connection at speeds of up to 10 Mbps, all with a 3.3V power supply.

UART/RS-485 transceiver breakout: 3 possible types of connection

Not only does this breakout board have a SP3485 RS-485 transceiver module, but it also offers 3 different types of connection:

• RJ-45 connector
• 3.5 mm 3-pin screw terminal
• 2.54 mm 3-pin header

Technical specifications of the BOB-10124 Breakout Board

• Supply voltage: 3.3V
• Compatible with 5V logic
• Input voltage range: -7 to 12V in common mode
• Simultaneous connection of 32 transceivers on the serial bus
• Short-circuit protection on the driver output
• Dimensions: 22.86 × 25.4 mm

Resources for the UART to RS-485 adapter

We’ve grouped together everything you’ll need to make your life with the UART to RS-485 adapter easier: schematic, technical data, programming codes, and more!

• RS-485 Breakout Board Schematic
• RS-485 Breakout Board EAGLE files
• SP3485 RS-485 transceiver datasheet
• RS-485 Breakout Board Design files