Hi!
I'd like to connect the MPPT 75/15 that we use in our sauna down by our lake to an Arduino MKR1300 to be able to fetch data about battery charging status but I went into trouble.
There are good examples on how to connect the MPPT controllers to Arduinos, but they all use a library named SoftwareSerial.h which is not available for the Arduino MKR1300.
Since I have no experience about serial interfaces I am now looking for some help here :)
If I get this to work I will make the code and wiring opensource.
/Henrik