About RS-485 Module


The RS-485 Module allows you to communicate over RS-485 bus using MODBUS or your custom protocol.
Many devices could be connected to the single RS-485 bus and exchange data.
This module also contains DC/DC converter so it can power the node. Supported input voltage is 5 - 28 V.

This module has low-power mode when data receiving is not enabled.
This way RS-485 node could work for long time just from batteries.

Schematic drawing

SDK Library

Header File

Source File


  • RS-485 communication

  • Only I2C pins are used thanks to I2C to UART converter SC16IS750IPW

  • Power supply with DC/DC converter and 5 - 28 V input voltage

  • Operating voltage range: 3.0 to 3.6 V

  • Operating temperature range: -40 to 85 °C

  • Dimensions: 33 x 55 mm