Threw together a little box for a Pro Trinket tonight to run FastLED for some WS2801 hanging on some trees at a camp site. Its a pretty tight fit over a 6v lantern battery. You mount some crocodile clips and some wires inside to attach to the battery, and there’s a little mount for the trinket.
Thankfully with a 6ft cable out to the LEDs there’s enough voltage drop to let the 6v drive the LEDs directly without the need for a regulator, and the Pro Trinket happily takes 6v on its Bat+ input so this was really easy electronically speaking. I’ve set the power usage to about 500ma max, so the 11ah in the lantern battery should last me all weekend easily.
I reckon with a little bit of hotglue in a few places this will be water proof enough for a weekend outside. I’ll throw up the STL’s somewhere later once I’ve printed a couple more and confirmed I’m not going to tweak it anymore.
http://delarre.net/posts/glowy-things-box
