Temperatur fail and no connection in Pronterface - HELP

Hey guys

I have problems with the temperatur in Ardunio. Anyone that can tell my what the problem is?
When I try Pronterface, can´t i connect to the printer. What is the problem??

I hope you can help me

Looks like you are connecting to the Arduino on Com3 and Pronterface is trying Com2. Pronterface should also look for the RAMPS on Com3
If the Arduino IDE is connected to the Arduino then Pronterface won't be able to, i.e. if you have the Arduino serial IDE open as per the first picture then Pronterface won't be able to access the port. Likewise if you have Pronterface connected to the printer the Arduino IDE won't be able to flash new firmware.

Steve

Thanks for the quick reply.

If I use COM3, continues the counting, but can´t connecting the printer?
I have only one program open at a time.


Kris

Can I assume you are using a RAMPS board?
Is the RAMPS compatible with the Arduino Due? I have only used RAMPS with an Arduino Mega

Steve