Hi,
I have a project in which I submit data through a custom message protocol.
So like message <321;1;5;10.2> is a thing.
To do that I use things like
String s = "<310;" + String(DeviceID) + String(";") + String(ToestelID)+ String(";") + String(currentUsrID)+ String(";1;") + String(CurrentPowerUsg) + String(";") + String(Temp1) + String(";") + String(Temp2) + String(";") + String(lichtSterkte) + String(">");
But the conversion of double to string fails.
this code
double ding = 10.15;
Serial.print("double print");
Serial.println(ding);
Serial