Once upon a time I did some diy etching. After many tests to get the correct exposure, chemical procedure, and drill bit I made one glorious circuit board. Unfortunately was mirrored incorrectly and didn’t work.

Since then the kit has been gathering dust and my light sensitive copper plates have expired.

Someday I’d love to try again. If you are in Brussels go for it.

Also try wire wrap.
#diyelectronics https://sunny.garden/@xaxalxe/114507759326941884

Creating the simulated circuit on a breadboard worked!

#diyelectronics

My first attempt at this circuit, which when transferred to breadboard didn’t work. Hopefully the simulated one will fare better.

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Here is a circuit I’ve been working on, my first with transistors. Red LED turns on when microcontroller, MC, is powered. Green LED turns on and red off when a signal is sent via GPIO from MC.

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It took some doing, but I finally got my BEM280 (temperature, pressure, humidity) sensor for my balcony weather station working in C. Crazy how much the Circuit Python library was doing: setting bunch of config values like mode and oversampling rates, enable/disable filter, reading compensation params, and parsing the read out values. Pretty cool to do it all yourself and understand the sensor on a deeper level.

https://git.sr.ht/~travisshears/balcony-weather-station/tree/main/item/bme280.c

#c
#diyelectronics

First step to create my envisioned model rocket setup is learning LoRa radios 📻. Goal is to stream live altitude readings from rocket to “ground station” (cardboard box with 7 segment display).

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#modelrocketry