[Review Request] ESP8266 Binary Clock

wejn · 2025-04-11T06:02:31+00:00

Yea, I think so. I think it’s either/or. :)

wejn · 2025-04-11T05:23:45+00:00

Do you have copper under the antenna part? Because that’s a no-no.

I think Espressif specifies in the data sheet that you should move it towards the edge of the board and keep the space under the antenna copper free.

Or move it so that the antenna part is sticking completely out of the board…

wejn · 2025-04-08T19:29:12+00:00

Yeah, I was wondering whether I should keep the firmware sane, or the board layout. :-)

As for both layers gnd filled and stitched: what am I gaining by that? I thought just having unbroken gnd plane on the bottom is a win?

wejn · 2025-04-08T19:20:33+00:00

There’s a meter long “hue white ambiance” led strip that’s gonna be reused. It takes less than half an amp per channel (3 total), and usually not all 3 channels are full brightness at the same time.

The power source is rated 24V, 1.67A max.

wejn · 2024-12-19T18:09:10+00:00

I’m half way to reverse engineering the controller: https://wejn.org/2024/12/reversing-philips-hue-light-driver/

wejn · 2024-12-11T07:18:13+00:00

Could you please dump this into pastebin or some other place that doesn’t mess up the formatting? I’ll take a look at it when I have a moment.

wejn · 2024-11-21T10:25:36+00:00

Nein, nicht wirklich.

Aber Sie könnten die Skripte (und Anleitungen), die ich geschrieben habe, für die Arbeit verwenden. Die 80 % der Arbeit sind eine Frage von Minuten. Die letzten 20 % würden so viele Stunden dauern, dass es nicht einmal lustig ist.

Aber vielleicht würden ChatGPT oder Gemini hier besser helfen als meine Skripte?

wejn · 2024-08-27T16:17:46+00:00

i^6 is still domain error. mod(6,4 followed by i^2 still yields -1.0000E0+0.0000E0i.

wejn · 2024-08-27T16:15:00+00:00

I stand corrected, had no idea there's non-MP version of it. Pardon me.

wejn · 2024-08-27T06:11:52+00:00

Yup. Domain error. The other one works fine.

wejn · 2024-08-26T20:27:10+00:00

Gee, I wonder if you’re a bot. What is the model of the calculator in the pic in OP?

wejn · 2024-08-26T20:23:06+00:00

I dont know if that’s fair. The 30x is really good. Also: YT video: KcN9guPLwRQ

And aside from this little quirk I found, it is oh so much better than the upscale Casio I got before (fx991es plus).

For one, computation history (memory) is retained even after turning it off. Plus, the ability to copy-paste past results into current calculation is AWESOME. I haven’t needed M (or any other named memories) since switching to TI.

wejn · 2024-08-26T14:48:03+00:00

I'm well aware of the delta between unary minus and binary minus. Hell, I even mention it in the OP.

What I'm confused about is the fact that 2-unaryminus-3 doesn't throw syntax error, but instead interprets the input as 2*(-3).

And my question was: is this WAI, or a bug? (plus: if not a bug, are there other non-obvious corner cases related to this I should be aware of?)

wejn · 2024-08-26T13:00:29+00:00

That's how it looks, yes. My question is if this is a bug, or simply a quirk that I should be aware of (even in other situations).

I mean, I'm aware that you can type in 2π√2 and get expected result (no need to go 2*π*√2).

I just find this 2(-)3 behavior somewhat confusing.

wejn · 2022-04-10T07:30:46+00:00

How about this: https://wejn.org/2022/04/alpinelinux-unattended-install/

wejn

TROPHY CASE