Testing level shifters for running Adafruit NeoPixel strips from a 3.3 Volt Teensy

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  by Jez

 

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If you’re running NeoPixel LED strips off a Teensy 3, maybe because you want to put 180 LEDs on a hat, then you need a level shifter. But which one? The NeoPixel data protocol is high speed and pretty harsh on timing requirements and I’ve had a bugger of a time getting reliable data from …

180 LED Hat for Kiwiburn

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  by Jez

 

4

Here’s details on my Kiwiburn project – a hat with 180 LEDs, all individually controlled… but to be honest, this was my project for Circulation, back in November. Getting it built was easy, getting it to work took quite some time, but I learnt a great deal. So here’s my design for a portable driver …

Making firewood easier

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  by Jez

We can grow maybe a third of the firewood we need on the land we have. Which is nice. Obviously, the supply for each year depends upon which trees we’ll be trimming or felling. This spring, we got Joe in to trim back the big pohutukawa as it was overhanging the house and blocking the …