waerhert

5 ms·

1.
by waerhert 3mo ago
On the outside it looks very similar to what Michael Levin found on electrical communication between living cells. There too, the organism's cells were able to structure and repair their larger-scale morphology: https://www.
2.
by waerhert 7mo ago
Agreed! And also, Total capacitance in series is 1/C1 + 1/C2, while in parallel is C1 + C2. Total inductance in series is L1 + L2, while in parallel is 1/L1 + 1/L2
3.
by waerhert 8mo ago
Nice approach! On Ubuntu 24.04 I had to loosen some AppArmor protections by creating a file: > cat /etc/apparmor.d/bwrap #include <tunables/global>
4.
by waerhert 8mo ago
Great read, thanks for sharing this. I'm also coming from software and have recently started making some hardware for personal use in my free time. The idea of selling it as an actual product has occurred to me, but the thought of deal
5.
Receiving Natural VLF Radio Signals(qsl.net)
2 points by waerhert 8mo ago|1 comments
6.
by waerhert 8mo ago
https://svendewaerhert.com/blog/
7.
by waerhert 9mo ago
Isn't DDC the I2C bus? Interesting article about that here: https://mitxela.com/projects/ddc-oled
8.
by waerhert 9mo ago
Very cool, thanks for sharing! Any ideas of adding 2 gimbal motors to this for GOTO? MS6010v3 or something lighter would seem like a good fit.
9.
Optical guitar pickup for nylon strings using fork light barriers(codeberg.org)
4 points by waerhert 10mo ago|1 comments
10.
by waerhert 10mo ago
It's not limited to WiFi networks and indeed the fingerprints you suggest would be a lot better because they would change significantly over time. The whole WiFi networks idea kinda stuck because it's an obvious an easy thing to g
11.
by waerhert 10mo ago
I see, this sheds some new light on your initial concerns. I'm aware an attacker can keep pretending to be inside an environment once they've seen it. I wasn't accounting for a scenario where an attacker has a huge database f
12.
by waerhert 10mo ago
Thanks for the heads up! Good to know what's out there. Interesting that I independently arrived at something possibly similar.
13.
by waerhert 10mo ago
Thanks for the feedback! Rainbow tables probably won't work here since the epoch (rounded to 5 minutes) salts everything, so precomputed tables would expire constantly. You would use use BSSIDs + SSID in real implementations. The MinHa
14.
Nearby peer discovery without GPS using environmental fingerprints(svendewaerhert.com)
78 points by waerhert 10mo ago|23 comments
15.
by waerhert 1y ago
My immediate thought after seeing the first chart was that it is inversely related to my own experience with movies in the last 20 years. Maybe there's an idea in there for a 'score normalizing' browser extension.
16.
by waerhert 1y ago
Works great on cheeses too!
17.
by waerhert 1y ago
OnStepX is very much pulse based as far as I understand it. I haven't encountered offloading techniques like you mentioned yet. Since both motors support (multiturn) positon modes, it should be possible to completely forego the pulseba
18.
by waerhert 1y ago
Indeed the cost is mainly from assembly. The board itself is 2 layers, all default settings at Jlcpcb except for the color which is now black as opposed to the default green. This increases the cost of the board a bit. You can experiment wi
19.
by waerhert 1y ago
Yes! And when you need advice on an electronic circuit you can export it in netlist format from KiCAD. This is a textbased representation of the schematic which is very understandable by LLMs
20.
by waerhert 1y ago
Good catch and explanation!
21.
by waerhert 1y ago
Thanks for the compliment and links! Can you tell me more about the aircraft tracking? I've been toying with the idea of being able to select a nearby airplane on flightradar24 and instructing the mount to follow it as it comes into vi
22.
by waerhert 1y ago
Yeah I didn't expect such a stark difference in image quality from the same lens when using it for day photography vs astrophotography. Just goes to show how incredible a proper astrograph is. I'm located in Belgium: high light po
23.
by waerhert 1y ago
Thanks, glad you enjoyed this. It's good to be in a place where you're confident things will turn out alright when you send your designs halfway across the world to be manufactured. I've so far only had positive experiences w
24.
by waerhert 1y ago
Thanks! If you hook your ZWO up to Kstars/EKOS you can use plate-solving in software to find out exactly where your scope is pointed at and then adjust accordingly.
25.
by waerhert 1y ago
Cool project. What prompted you to write this? Asking because EKOS already has pretty good scheduling features (I've seen, not used). Along the way I did vibe-code a TUI for controlling the INDI server running on the MeLE 4C minicomput
26.
by waerhert 1y ago
Haha, the thought of using OpenSCAD briefly crossed my mind when I found out about it but I didn't want this project to take a year extra to complete. I do consider exploring some of the other CAD alternatives though if budget permits.
27.
by waerhert 1y ago
Not sure what you mean with complex mechanism. The mount has a similar architecture to other commercially available mounts like the HEM15 iPolar for example.
28.
by waerhert 1y ago
I switch between the cheap Byomic 76/700 newton and my Sigma 600mm lens (Canon EF but using an adapter to fit the Olympus body). I tried to get the DSLR looking into the newtonian but it was just too heavy, causing the plastic focuser
29.
by waerhert 1y ago
Short answer: it's in the same ballpark as other mounts of the same size. The theoretical accuracy for RA is 0.198″ (65,536 steps and 100:1 reduction) and for DEC is 0.253″ (256*200 steps, 100:1). In practice many things will reduce th
30.
by waerhert 1y ago
I estimate a load capacity of 8-10kg. It's not designed for the really big equipment cause I also would like to take it on camping trips. If I were to do this again I will definitely add a threaded hole to mount a counterweight bar. I&

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