Yup, was going to mention conformal coating (keyword is important for the electronics side of things). You can get it in a spray can and it goes on like a lacqu

Yup, was going to mention conformal coating (keyword is important for the electronics side of things). You can get it in a spray can and it goes on like a lacquer, pretty simple (might need to tape certain parts if they need to be exposed). A good conformal coating can withstand the acrid nature of coal plants, I bet it can also handle the playa (though it seems like things fared pretty well as is). Great project and thanks for the writeup! Hope to see you at future hw meetups in SF! :-)