I have a small problem with my MKRNB1500. I have a sketch that just reads input from one pin, and then send status to a webpage. So really basic for that board.
The problem is that everything works for about 10-12 hours, and around that time the yellow led on the board starts glowing, or slowly pulsing, and the board don't respond to input changes. I need to pull the power to the board and start all over. The board is powerered through the USB port with a 2A powersupply.
What does this glowing/pulsing light mean? Since everything locks up and it takes so long time for it to happen, it is hard for me to troubleshoot, but I guess the led is trying to give me a hint?