In re-reading your post # 2145, I only reset the Nano to stop the endless cycling as described to follow. If I do not exit the loop page after clearing the “no reply … message, the countdown timer that I have set as 5000 milliseconds will start and time out and another sequence (no 2) will start. It will complete without the sol 1 valve operating and camera shutter functioning, and again popup the “no reply … message. Again clearing the message, and the 5000 ms timing out sequence 3 will run without the valve and shutter functioning. I have not gone beyond the 3rd sequence. The green led will stay on continuously from the beginning of the active period of the 1st sequence until I reset the Nano.