Lrc Tools Library for Modbus-ASCII
This library contains some tests for Modbus-ASCII communication Used on 2 x Arduino Uno with SN75176 RS485 chip
As seen on: https://microcontrollerelectronics.com/sn75176-rs485-communications-between-two-arduinos/
Modbus-ASCII is just sending strings back and forth, but they contain a LRC checksum, which can be extracted and checked with this library.
This code was written to test communication with ABL Emh1 Chargers