I am thinking of a farming project that includes using some board like Arduino, Raspberry Pi or Onion Mega (the list is not exclusive).
As the system will work with sensors and support life of its wards, their health will depend on the work of the whole chain of components.
I am surely going to keep the main board in a safe place, like, put it in a moisture- and temperature-proof case, and isolate contacts where needed, but I understand that these boards are more for education/experiments than for real daily duty. Also, there always a factor of defectiveness in the board coming from the manufacturer.
So, I wonder, if there is information about how durable the boards are and if they are suitable for 24/7 work during weeks/months?
How do I make sure that system has some more or less definite margin of safety and know the moment when I should replace it with a new one?