elfyMood: listening carefully to the computer's fans spinning duration and pattern to determine if build of firmware succeeds.
Funny Bluetooth quirks: holding the ESP32 in your hand's palm increases response time from previously maximum of ~200ms up to nearly two seconds.
But only on the wheelchair drive of both that's farther away from the ESP.
I just posted the script with all the content I intended to talk about in my #39c3 talk last weekend on Github:
https://github.com/roll2own/m5squared-resources/blob/main/39c3-talk/39c3-talk-spoken-text.md
It's a lot of text, but might be a good read and has more context to the history of the source code, the concepts, social/ethic questionability of DRM in mobility aids, etc.
Since people in the Heise comments are complaining about my English accent and chewing gum: nobody forces anyone to watch the talk. If you want the technical details, look them up in the Github repo.
The incident with the slides right before the talk made me extremely nervous - even more as I'd be before/during giving a talk. I know it's far from perfect. And maybe such dudes should try doing smth. similar, for free and in their free time.
Normal people's debug markers: smth. like "foo", "asdf", "BANANA".
Schwäbischer wheelchair drive manufacturer who loves shipping DRM in mobility aids: "OBACHT".
The video for my talk on reverse engineering my wheelchair drive's DRM, the security theater of the drive, other absurdities is online at media.ccc.de: https://media.ccc.de/v/39c3-pwn2roll-who-needs-a-599-remote-when-you-have-wheelchair-py
First code for accessing the Bluetooth interface of the drive is live, there's much more to come: https://github.com/roll2own/m5squared
(Libreoffice sort of ate my slides just before the talk so the talk is really freestyle and far from perfect. I'll post them soonish online, also a spoken script).
