Sketch only works when console is open

[niek]

Hi,
I have upload the temperature sketch to an Arduino Nano. I only edited the name of the node. The code will run as long I have the console from the Arduino software open.
When I close the console, the red led starts blinking and the code will no longer run.
I have another temperature node with the same code and that node is running without any problems.
Does anybody know what the problem is?

[niek]

Nobody? This arduino is useless on this way... :S

[AWI]

@niek Try with a basic blink sketch and see what happens. if this keeps working add some serial output and see what happens.