Modbus Library for slave devices based on STM32 MCU (v5)
Supports Modbus RTU and Modbus RTU over TCP modes.

Original library was written by @ponkin_dmitry

Single header library which allow you to connect your devices using Modbus protocol. 
Main configuration takes place in `modbus_constants.h` file.

Buffer sizes needs to be set via definitions `MAX_HOLDING_REGISTERS` and `MAX_INPUT_REGISTERS`.
Create your `modbus_constants.h` header file from example which is in the current repo.