Very exciting news, you can now BUY an Alles synthesizer (or 4!) Our friends at Blinkinlabs are manufacturing a small run of Alles PCBs. This is the first time they're available for sale after a beta with some great musicians for the past year.
Buy here (US): https://shop.blinkinlabs.com/products/alles-pcb
(Outside US):
https://shop-nl.blinkinlabs.com/products/alles-pcb
The built-in calibration project on the Prusa SL1S is neat- it prints a model with 8 different exposure settings simultaneously, allowing you to pick the best one: https://help.prusa3d.com/article/resin-calibration-sl1-sl1s_112182 If I followed their advice for longer expose, this might have worked in the first round
Nice part: STM's USBDF01W5 includes both ESD diodes and an RC EMI filter in a SOT23 package. Very convenient that it has the same footprint as common ESD-only parts ;-) https://www.st.com/en/protections-and-emi-filters/usbdf.html
The @saleae Logic 2 software is really nice, but the remote control API didn't have an obvious way to just start a capture using the current settings. Fortunately you can do it yourself by using a GUI automation tool to poke at the right part of its guts: https://gist.github.com/cibomahto/3c47e7b06622aad732cbea4ac11900c4
Protip: You can buy new logic analyzer probes to replace your old worn out ones. I recommend replacing them at least every every... 10 years now I guess? https://eur.saleae.com/collections/accessories/products/wire-harness-97
I was wondering how many solutions there were to this 'scramble squares' cat puzzle my great Aunt gave me, so I wrote a solver for it: https://gist.github.com/cibomahto/31e0ec014bedcd39242265e333535809 . The answer seems to be two unique solutions.
I'm attempting to extrapolate radiated emissions from common mode current measurements. Here's a measurement of a USB memory stick when idle, and when transferring data. So far the measurements don't seem to correlate well to known emissions measurements, but maybe it's helpful for troubleshooting noise sources.