I've had a Arduino project running for a few months now and a few times its just crashed after a few days, or sometimes a few weeks. I've tried using wdt on it but it hasn't really helped. I think the arduino is still running but the ethernet module is dying / losing connectivity
I was thinking of using another arduino, or maybe even a 555 timer to power cycle the arduino after few days. Removing the 5V from the Arduino and ethernet module for a few seconds and letting it startup again.
Any simple circuits I can use for this? Has anyone done something similar?
Would be interested to hear from people that have arduinos running 24x7x365 - how stable are they? Are they supposed to run for months on end without restarting?