Featured posts

Please Do Not Water This Tree

Today in ‘things which would have been way easier with fibre optics’.
Published 2020-10-04 in #gift idea, #art, #LED, #ARM, #STM32, and #leshy

A Better STM32F0 Prototyping Experience

Or: How to make most out of 50 by 50 mm in terms of development usefulness.
Published 2020-02-03 in #hardware, #embedded, #STM32, #ARM, #PCB, and #leshy
A Better STM32F0 Prototyping Experience

Building a Camera with a Rather Undersized Microcontroller

A weekend project you might call an ‘inverse thermal camera’.
Published 2018-08-24 in #embedded, #STM32, #ARM, #thermal printer, #art, and #weekend project

A short reflection on direct laser PCB printing

Using toner as an etch resist without having to bother with thermal transfer.
Published 2017-12-25 in #PCB
A short reflection on direct laser PCB printing

Newest posts

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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ESP8266 Programmer

For the software side of some ESP8266 development, I bought a cheap ESP01 to USB adapter from AliExpress, expecting a programming adapter. What turned up on my doorstep, however, was just a USB-UART adapter which wasn’t able to drive the reset and GPIO0 pins. Luckily, the missing circuitry could be added easily.

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Using Desoldering Braid Bobbins for Bodge Wires

Don’t throw spent desoldering braid spools away! The bobbins are great for hand wiring prototypes and doing PCB repairs. They have the perfect size, and unlike a regular spool, the magnet wire won’t uncoil itself all the time.