Isolated RS485 and RS232 Evaluation Kit


The Isolated RS232/RS485 Evaluation Kit is a demonstration and evaluation platform for creating Isolated RS232 and RS485 solutions. It can be used in conjunction with EFM32 and EFM8 MCU Stater Kits (STKs). It simplifies the process of creating an isolated RS solution by offering an already built and functioning platform. The board schematics are available and there are examples that can be run on the MCU STKs to communicate via isolated RS232 or RS485. The board contains two isolators, an RS232/485 transceiver, a 20-pin breakout header for easy connection, many headers for debugging and evaluation, male DB9 port, and screw terminals for RS485.

ISOLATED-RS-EK Hardware and Software Features

ISOLATED-RS Board and Kit Contents:

  • RS232/RS485 transceiver
  • 20-pin header for connection to MCU Starter Kits
  • Null modem DB9 cable


  • 2 x isolators
  • Breakout points
  • Loopback jumpers for easy evaluation
  • Biasing options for RS485
  • Write control options for RS485
  • Transformer for easy power over isolation
  • Status LEDs


Get Started with the Kit

Access software and development resources

All Silicon Labs MCU or WLMCU Starter Kits can connect to the Isolated-RS board. There is example code on the SLSTK2000A (EFM8 Universal Bee) and the EFM32WG-STK3800. One of these boards is needed for full evaluation and demonstration.

Compatible Boards

MCU Board User Guide Included Device Price (USD) Add to Cart
SLSTK2000A Universal Bee $29.99 SLSTK2000A EFM8 Universal Bee USB Starter Kit
EFM32WG-STK3800 Wonder Gecko $29.99 EFM32 Wonder Gecko Starter Kit

Isolated RS Resources


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