I have browsed the site for information about humitity protection of Arduino controller projects.
I carefully read “Arduino durability in industrial environment” and I found it very useful, with a wide diversity of views. I learned a lot from that reading.
My controller is an Arduino based solar autofeeder for cattle. It runs in my farm since one year. No failures. All components, relays, PWM battery charger, etc are enclosed in a good plastic case with orings.
Arduino PCB is intact, no corrosion. The I2C that interfaces the LCD display is showing signs of corrosion.
Question: where can I read about humidity protection ? My instinct points me to a high grade two component enamel, like Glasurit or Basf. But perhaps (or sure) that wheel is already invented !
Thanks for your help, Kind regards, Horacio