Z̈oé ✔️ @uint8_t@chaos.social

This is the backside of the board. The carrier PCB is 55x30mm plus the antenna part of the wifi SoC module.

The DC jack is very large. And I also wish it would be on the opposite end of where the LED strip is, not orthogonal to it.

But then I'd need to make this board wider, and I wanted to keep it sleek, with possibility to solder the LED strip directly on it.

I want to keep this affordable as much as possible. A bunch of these modules could do very cool effects together.

After I realized that 6 pins of the ESP-12F are literally unusable, changed the wiring a bit (I was able to keep most of the functionality with minor restrictions) tihs is fully routed and done. But I don't feel particularly good about the layout; I want to make it more compact.

This is an RGBW + WS2812 LED driver with ESP8266 and 3-A DC/DC regulator. There are headers for 3 PIR sensors, so it's possible to detect motion, and also in different sectors (movement direction on corridors).

High voltage power lines are such an amazing piece of engineering.

https://en.wikipedia.org/wiki/Overhead_power_line#Bundle_conductors

the latest RIPE announcement fits nicely into the 36C3 theme

The shitty cable has a bad contact. Looks at the reflections when I move it gently.

I did some very non-scientific TDR with our 200-MHz oscilloscope and lab function generator. The idea is that you get information of the characteristic impedance along the cable when you send a sharp pulse and observe the reflected waveform.

Avoid buying bad quality BNC cables, they aren't worth it.

I might do a talk on DC/DC converters if Chaos West accepts my submission 👀

What color is this onion? (poll in the next toot)

poll in the next toot

Mastodon is crumbling

okay, this compute-module looks very cool

I want to build a laptop out of this

the question is, can I fit into a a thinkpad X201/220/230 frame

And one for the PNG gang

here is its counterpart

I'm having a blast with the 36C3 design generator

thanks Bleeptrack

maybe someone has a broken-beyond-repair laser printer (2D) for me?

I would love to get a polygon mirror to build a small laser show

I built on from 3D-printed components and small 1-by-1 cm glass mirrors, which works, but the wobble is a bit too much.

chaos dot social said trans rights!!!

The EEZ Bench Box 3 is such a beautiful open hardware modular bench power supply! I'm in awe. Their documentation is simply perfect: https://www.envox.hr/eez/eez-bench-box-3/introduction.html (see the sidebar for details on its components)

I need this in my lab.

They run a crowdsupply campaign: https://www.crowdsupply.com/envox/eez-bb3

maybe chaos reigns over my files, but this baobab disk usage chart looks cool

Spotted this in Wien

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