Featured posts

Please Do Not Water This Tree

Today in ‘things which would have been way easier with fibre optics’.

A Better STM32F0 Prototyping Experience

Or: How to make most out of 50 by 50 mm in terms of development usefulness.
A Better STM32F0 Prototyping Experience

Building a Camera with a Rather Undersized Microcontroller

A weekend project you might call an ‘inverse thermal camera’.

A short reflection on direct laser PCB printing

Using toner as an etch resist without having to bother with thermal transfer.
A short reflection on direct laser PCB printing

Newest posts

Es ist Mittwoch.

Sometimes blog posts just have to sit in the drafts for a while. This one had the opportunity to mature for about a year. The actual project lies back about two and half years by now. The pictures I have of it haven’t got any better in the meantime, so I might just as well hit ‘post’ on this split-flap calendar I built for a friend.

Most of the time, it doesn’t do much. Once a day, it advances by one flap and ⅐ of the time, it announces the day of the week, Wednesday.

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Zoom H4n Pro Repair

A Zoom H4n Pro audio recorder found its way to me, non-working. Recordings seemed to be silent, but with loud enough input you could just make out some distorted sound in the recording. After (unneccessarily) disassembling it completely, I found out that the power supply of the preamplifier board was sitting at around 0.8 V, which thankfully/boringly turned out to be the only fault in the unit.

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USB-C to Micro-USB Adapters

I have a Seek thermal camera, which works by connecting it to a phone and using Seek’s app to display the image, take photos, etc. It’s an older model, from back when there were two variants, one with Micro-USB and one with Lightning. I’m on my third phone since I got it, which does not have a Micro-USB port any more. But it’s easy to get an adapter from USB-C, right?

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