Overview

This is a Modbus master library for mongoose os.

Features

The following Modbus functions are available:

Discrete Coils/Flags

• 0x01 - Read Coils
• 0x02 - Read Discrete Inputs
• 0x05 - Write Single Coil
• 0x0F - Write Multiple Coils

Registers

• 0x03 - Read Holding Registers
• 0x04 - Read Input Registers
• 0x06 - Write Single Register
• 0x10 - Write Multiple Registers
• 0x16 - Mask Write Register
• 0x17 - Read Write Multiple Registers

Hardware

Tested on ESP32 and mongoose os version 2.17.0

Example

You can check Mongoose OS Modbus Example for a sample application.

Project inspired by ModbusMaster.