Other things done in 2020
I created grow lights from old LED strips to keep my plants alive during the winter. It was not a great success.
Strips of salvaged SK6812 LED strips are mounted to the shelves with 3D printed plastic clips. Each set of lights is controlled by an atmega328 with a potentiometer for brightness control, mounted on the side of the shelves, again using similar clips.
I designed, etched and soldered an Arduino Uno hat for the ArduinoISP sketch.
The hat has a switch for the crystal, which allows it to burn both bootloaders with and without the external clock flag. The circuit is designed so it can be etched on a single sided board, and only requires jumpers for the uno pin-headers.
The KiCad sketch is available at github here.
I concluded it was finally time to (mostly) retire my old variable power supply, a step-down converter built into an ATX power supply. It had partially rusted after experiments with electrolysis, and was really bulky. I wanted to replace it with something portable and cheap.
I replaced it with a step up/down supply module, powered through USB-C PD, and enclosed in a 3D printed enclosure.
If you want to build one yourself, the PSU module can be found here, the USB-C connector here, and the 3D files here.
Through the cs talent track program, i joined the Computer Mediated Activity (CMA) research group, where i used the Feelix force feedback design system to create a scroll wheel which gives haptic feedback when scrolling across new changes in a text document.
Another year of contextless audioshots:
Proev igen.ogg
Its fun.ogg
Ever heard.ogg
3AM Twitch.ogg
Dogs dont cry.ogg