A really cool post on the MSRaynsford blog. They have a live action roleplaying (LRP) game called The Vale. And in-game, they need to display information remotely. As anyone with custom electronics has found out, you want your projects to be rugged and sip as little battery power as possible. Their earlier LED displays apparently ate through batteries.

If you want a battery powered item to last for a whole weekend, LED’s are a bit of a no go. They’re quite power hungry and illuminating a whole display of them is going to eat through batteries. The other problem with LED’s is that they can be hard to read in the sunlight and blinding in the darkness. ePaper displays however can be read in direct sunlight, can be illuminated with a torch and many only consume electricity to change the image. They seem ideal for an application like this. I opted for these waveshare 2.9 Inch epaper modules.

The blog post goes into power details and the making of the cases to be water resistant.

You can find the details on the blog post.

Do you build electronics which are exposed to the elements? Let us know your tips in the comments?