RS485 Archives - Microcontrollers Lab

RS485 Serial Communication between ESP32 and ESP8266

October 9, 2026

RS485 Module with ESP board (Master and Slave) hardware

In this tutorial, we will learn how to perform RS485 serial communication between ESP32 and ESP8266 boards using 5V MAX485 TTL to RS485 module. RS485 communication is used in industrial Modbus to communicate with various devices. We will follow the RS485 serial communication protocol and demonstrate it with ESP8266/ESP32 boards. The ESP8266 NodeMCU will act … Read more

RS485 Serial Communication between two Arduino boards

October 9, 2026

RS485 Module with Arduino UNO (Master and Slave) hardware

In this tutorial, we will learn how to perform RS485 serial communication between two Arduino boards using 5V MAX485 TTL to RS485 module. RS485 communication is used in industrial Modbus to communicate with various devices. We will follow the RS485 serial communication protocol and demonstrate it with two Arduino boards. One will act as an … Read more