Archive for March 2015

LED strip drivers for the Flying Carpet

Driver boxes for the Flying Carpet, Marks 0 and 1. You could call this the march of progress, so long as progress is defined as smaller and tidier:

In fairness, I did the Mark 0 in a day’s rush before Kiwiburn, hence the horrible jumble. The Mark 1 is tidier, but of course building it revealed a bunch of extra tweaks to make assembly easier, like making everything through-hole, adding screw terminals, and shifting the sockets for easier access to the mounting screws. So there’ll be a Mark 2 and I’ll share that design.

The goal is a family of bomb-proof LED strip drivers, in a selection of sizes.

Specs for this version are: Teensy 3.1, level shifter, 34 Watt-hours of Lithium-ion cells, and 15 Watts to run NeoPixel or Dotstar strips. Will run 50 LEDs white and full brightness, 150 LEDs at single colour and full brightness, or many if your patterns are not full brightness. And a solid metal case that you can step on, and locking connectors so the cable won’t fall out.

Or maybe we just like to put googly eyes on all the things. This is the soft case for the hard case for the Mark 0 driver:

Mostly, I’m perturbed to be making plans for 2017

Spent today cutting and stacking about three cubes of mostly Japanese Cypress from some friends, with added mahoe from another fried, and mac and pine from our land. This will do for winter 2017, but when the hell did I start making plans that long?

And a shed full of bought pine for this winter, and pōhutukawa cut last year in piles for 2016, and we’ve now run out of space to store and dry any more wood. We were going to get some of the sycamores taken down this year, but that will have to wait until we’ve either burnt what we have in hand or made some more storage. Given we live in the side of a cliff, that’s tricky.