Hello friends, I hope you all are doing great. Today, I am going to share the new MAX485 RS-485 Module Library for Proteus V1.0 . RS-485 is how microcontrollers talk across a factory floor, a farm or a building: two wires, A and B, carry the data hundreds of meters, and many devices share them - energy meters, temperature controllers, VFDs, PLCs. Most of them speak Modbus RTU . The small MAX485 module puts an Arduino on that bus. Until now there was no MAX485 module in Proteus on which you could watch a Modbus master and a slave talk. Updates MAX485 RS485 Module Library for Proteus Latest version: V1.0 (October 2026, this tutorial) Other modules: Micro SD · MCP2515 CAN · DS3231 RTC · DFPlayer Mini Helping Tools Serial Monitor Advance : a serial terminal window for the UART of your board Se ...