If you want to keep your Arduino project or other circuit boards safe from exposure, an electrical box is the traditional choice. But what if you want to apply protection directly to the board?
In the video below, “TheRainHarvester” shows us a novel and inexpensive method for hardening a Nano from short circuits and other minor exposure by simply melting plastic on the top.
The Nano’s new armor is sourced from a lid that you might find on a coffee or oatmeal container, and after cutting it to size, a “plasti-shell” is fused to the board with a heat gun. The procedure couldn’t be simpler, and appears to provide a good amount of protection for the little board!
[original story: Arduino Blog]