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

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.