I have deployed a very simple script to this Teensy 3.1 board and I kept noticing that the Serial output would stop after roughly 3 seconds. It's almost seems like it occurs at EXACTLY 3000 milliseconds.
In the image below, you can see the script which simple blinks the LED every 50 ms and ever 100 ms it will write to the serial interface the number of milliseconds that have passed.
After 2900, there is no more output. It doesn't matter the delay before/after setting the pin values. Please note that the LED continues to blink at the correct interval. The Serial output monitor stops scrolling and no more output is displayed.
Has anyone else experienced this?
