MatthiasWandel

11 ms·

61.
by MatthiasWandel 6y ago
The question was not how quadrature encoding works, but how to implement it with the limited PIO instructions
62.
by MatthiasWandel 6y ago
I have been puzzling over how to program quadrature decoding with the PIO instructions. Not many chips have quadrature decoding built in.
63.
by MatthiasWandel 6y ago
Tracking location by signal strength is highly error prone. Antenna orientation and multi-path can change signal strength a lot (+/- 6 dB easily) without the object actually moving. So the location data you get will be VERY approxima
64.
by MatthiasWandel 6y ago
This has much to do with fading and such. If the polarization of the antenna sending is 90 degrees from the antenna receiving, for example, you will get no signal, even if close. This sort of thing can make the signal get weak as though i
65.
by MatthiasWandel 6y ago
I see the register is not above misleading click bait headlines either.
66.
by MatthiasWandel 6y ago
if you are a self starter or a self directed learner, an online course is not the way to go. Start with a desire to do something, then search online for how to do it.
67.
by MatthiasWandel 6y ago
Some routers have a height fine adjustment screw accessible through the base plate, some even come with a wrench for turning it, so if its upside down, you can just adjust it from the top like what was built on that page. A problem with bo
68.
by MatthiasWandel 6y ago
Making time an unsigned 32 would break any code that computes a difference of times.
69.
by MatthiasWandel 6y ago
This problem would be better and more consistently solved by just offsetting some of the scripts in time. Who says the 10 second script needs to run on even seconds or even multiples of 5?
70.
by MatthiasWandel 6y ago
Problem is, freezers typically run 40% of the time. If you let it get up to -10C, the duty cycle will be a fair bit lower, but still quite high, while only drawing about 100 watts. But that's a lot of money to spend protecting food ho
71.
by MatthiasWandel 6y ago
Maker of the video here. For a moment, I though this was about my video and article, but reading the comments, it's more about everyone sharing their stories. Few of the comments reflect having read the article. Fair enough, someti
72.
by MatthiasWandel 6y ago
Like so many clever puzzle answers, this doesn't take into account the effect of measurement error. The tests apparently have a false negative rate of 20% as it is. Now start mixing samples together, causing more dilution of the posi
73.
by MatthiasWandel 6y ago
Thanks for pointing that out. Just added the Mac URL
74.
by MatthiasWandel 6y ago
Lots of woodworking youtubers have had no background in it. Its evident that they are learning it as they go, but it also shows that it's possible without schooling or a teacher.
75.
by MatthiasWandel 6y ago
Just plain HTML, versioning managed with GIT. Just can't be bothered to learn and deal with a CMS.
76.
by MatthiasWandel 6y ago
The software is a good chunk of the revenue, but youtube makes more than the sw. But when others talk about how much they make on youtube, it's alwas more than me per view. Biggest revenue contributor is plan sales.
77.
by MatthiasWandel 6y ago
Being an apprentice is probably bretter, yes. But I have no idea where you would find a master who wants an apprentice, let alone a master at all.
78.
by MatthiasWandel 6y ago
Mostly time constraint. Have been thinking about building a gear cutting machine using a table saw or angle grinder as the cutter. Sort of a single purpose CNC machine.
79.
by MatthiasWandel 6y ago
Matthias here. Surprised to see my website hit the front page of HN overnight. Got any questions for me?
80.
by MatthiasWandel 6y ago
Matthias here (surprixed to see my website hit the front page of HN). Got any questions for me?
81.
by MatthiasWandel 6y ago
fixed that page.
82.
by MatthiasWandel 6y ago
The best replacement for sketchup these days is OLD sketchup (version 8), from ten years ago. You can still get it. More on that at http://woodgears.ca/sketchup
83.
by MatthiasWandel 6y ago
Good point. The LEDs lighting would eliminate horizontal distortion, and if it's a color laser prointer, the vertical scaling has to be just right too or the colors won't register.
84.
by MatthiasWandel 6y ago
Some specific examples would perhaps make your case, instead of just making an unfounded assertion.
85.
by MatthiasWandel 7y ago
Although the article is phrased as "look at these right wing demagogues", it's not like this strategy of ignoring truth and using fear isn't also used by the political left. Certainly, the old notion of "liberalism
86.
by MatthiasWandel 7y ago
Matthias Wandel here. Funny how my old stuff shows up on hacker news from time to time, though it was less than a year ago that I ported it to javascript, used to be flash, cause when I created it more than ten years ago, javascript canvas
87.
by MatthiasWandel 7y ago
If I just want to spend the time at it, I’d build another bandsaw.
88.
by MatthiasWandel 7y ago
I miss working with other engineers. But overall it’s been fun. But with changing trends and so many people making videos now, it may be the right time to get out and get a real job again.
89.
by MatthiasWandel 7y ago
The transverse pin weakens the tenon and the piece of wood it goes into. If the joint is well designed (so that the glue strength and wood strength are balanced), the tranverse pin only weakens the joint.
90.
by MatthiasWandel 7y ago
I haven't tested it explicitly, butI consider the magick mortise and tenon (or dowel) ratio to be around 4:1 or 5:1. A tenon longer than that will break off (wood failure), shorter than that, and it will pull out (joint failure). I s

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