Simone72:
This project is very interesting!
I'm trying to communicate with an energy meter (ULYS MD80 + ULYSCOM) that speaks Modbus and your code will be of tremendous help to me!
At the same time I am trying to implement the function of datalogger with writing data on SD card ...
For the time stamping'm thinking to use a RTC (DS3231 AT24C32) because in the counter does not have this option.
Good luck to all!
Hello I hope you made it.
Thanks I make this for helping people like you, All the things that you need is completly posible.