This is my first post here. I am not super expert in Arduino but I wanted to share a late issue I had and how I found the error. I read lots of post here that did not solve my problem. I finally found the origin of it and how to resolve it. I used Arduino Mega 2560. A simple project to mesure resistance of a wire. Ok, here you are...
Problem: Not able to copy and paste all the data from the serial monitor values.
I selected all data with Ctr + A and Ctr + C from the serial monitor in Arduino.
The paste funcion Ctr + V, does not work in any text program (e.g. excel, notepad).
I had this data:
12:37:12.167 -> R2: 2400.00
12:38:12.178 -> R2: 2502.50
12:39:12.202 -> R2: 2502.50
12:40:12.214 -> R2: 2400.00
when selecting all, copy and paste, I obtained this:
Then I tried selecting all the data except for the first data point. That worked.
Then, I realized I run the sketch twice. It seems every load of the sketch makes a single data section. You cannot copy all of it together (aparently that was my problem).
I found that if I clear the serial monitor I am able to copy all the data. Then, I run the sketch again, then I could not copy the whole console anymore and only the data by the time the sketch was run (by scrolling and selecting).
Solution: press run sketch and do not do it again if you want to save the whole serial monitor. My sketch runs continuously with a "delay()" function, so I just have to be careful and do not load it again.
I hope that help others facing the same problem.