Pinned toot

The light works. The gravity works. Anything else we have to take our chances with.

Pinned toot

``Lost forgotten technologies,'' Donovan said. He sighed and tossed the cassettes to his bed. ``Our remote ancestors poked reeds into mud and baked mud into brick. We can still read those ancient thoughts, millennia later. But it seems that the greater the technology, the more ephemeral it becomes.''

Nope, my math is correct, apparently the ruler has a bend😜

Show thread

Hmm, the second antenna also turned out to be shorter, I'll check everything from the very beginning😀

octave autoinstalls portaudio😕
And after that they wonder why I hate binary package repositories.

Gee, the thingy really helps. However, I cut off a slightly short piece of copper. Let's see, maybe I'll redo it: I need two emitters anyway.

Show thread

Ha! I forgot one thing: after switching on, one need to give the $h command for the initial positioning of the spindle, otherwise the machine remains in an emergency state. I almost started checking all soldered connections😉

If you do not do something for a long time, then you do not immediately manage to get back on track.
I sketched out a milling job for the antenna template, I don't even know if it would be useful for bending the wire exactly to size. Will see🤣

YRabbit boosted

Programming another Sparkfun ESP module to operate as a modem for my C64.

This particular ESP8266 module has 3.3v-5V voltage levelers built-in, so it's perfect to use as a C64 modem.

The 8bitdo gamepad has nothing to do with this process..it just happened to be sitting there.

YRabbit boosted
YRabbit boosted

Instead of rewriting it, though, I'm thinking of making a Kevlin Henney-style talk where I refactor the code into something more manageable using some of the principles I've learned while conceiving ascetic programming.

#forth

Show thread
YRabbit boosted

By manipulating the distance to the reflector and the rounding radius, I achieved a cool s11 graph!😜
It was only when I launched the to design the antenna support elements that I discovered that in one place I was mistaken with the dimensions by about half☹️
Have to repeat the simulation from the very beginning.

YRabbit boosted

@daftaupe

One of the first things I was taught when I started collaborating on product design: never *ever* use #colour as the sole source of information.

And that was before I visited a blind users association to learn more about #accessibility (many years ago). Out of necessity we did not have any blind users but the lessons learned from them made our stuff a million times more useable.

@yrabbit

``When the battery is charged, the indicator will change from red to orange.'' I hate this hair clipper: under threat of death, I can't tell the difference between a small red light and a green one, let alone an orange one😕

Now that I understand what's what and how to interpret the simulation results, I don't have serious troubles with the mesh and I don't have to wait 3 hours because of poorly selected regions.
Now I can add copper parameters to the model, add a reflector and try different edge lengths for good reception at 2.6GHz.😉

YRabbit boosted

@yrabbit

For a moment there, I thought you said "describe".

The coffee-maker is very like a (snake, wall, fan, rope, spear, pillar)…

It's nice when a professor answers my stupid questions about his article written 20 years ago.🙂
trevormarshall.com/biquad.htm

YRabbit boosted
YRabbit boosted
@yrabbit nah just wanted to put it on the reading list, since clearly the writer is legit and actually understands antennas
Show more
Mastodon @ SDF

"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko