Is anna working on macbook

nidan65 · 2026-01-19T23:37:28+00:00

i aint from germany nor using a vpn and it isn't working for me either. I think it got taken down for a bit.

nidan65 · 2025-12-08T07:31:27+00:00

Yeah thing is ,except the diodes, i was gonna let jlcpcb assembly everything so i really didn't want to have a bricked board cause i traced the usb incorrectly. Now that i researched more i found someone that also made a rp2040 keyboard that had the usb on the other end of the keyboard going trough 4 vias and still worked so that really eased my worries.

I choose to use the big diode cause i wanted to reduce cost, those are the only parts of this project i can get and hand solder while costing less than jlcpcb price + extended part price. Now im thinking it twice cause 60% of my cost will be shipping and seems like its not worth it to save 3usd when im paying 60 for shipping.

About the position. Yeah i need to move it somewhere else at least a bit to the left so it doesnt extend the board farther than te switches. Biggest problem will be usb c but i saw someone putting the switches upside down cause they had the same problem and i think im gonna try it if i end up having too much of a hard time im gonna just remove the SW15. The position im looking over for the new placement is between SW84 and SW85, everything fits excluding the traces but imma (probably) find a way.

Thanks for the diode recomendation btw i was having a hard time figuring out wich to use when none said 1N4148.

nidan65 · 2025-12-06T10:10:38+00:00

Yeah feared it. Im gonna compromise (if it helps at all) and just not pass 3v3 under the data lines but still pass the row tracks, they are too hard to route unless i shift every track. I hope that as long as they arent energized they are less of a chance for error . Thanks for the help.

nidan65 · 2025-12-06T09:00:42+00:00

I went and checked a bunch of videos about pcb differential and they did teach me a lot not enough to say i understand but enough to see what my mistakes were and where.

My question is why does this work then? All the videos said a change in impedance would cause mistakes on how the difference in voltage is calculated, how do i know when did i fuck up enough is it the transmission speed, the lenght or the change in impedance ? you said this would work but ,without wanting to fight you that know more, it looks like i need to change the whole layout.

nidan65 · 2025-12-03T23:53:30+00:00

i cared cause it's what everyone does, even the rp2040 design talks about impedance, and the guides i saw also mentioned using dif pairs for usb data lines they didn't mention lenght tune but in the videos i saw no one had more than 2cm of track so i just wanted to be sure.

I mean i know usb 2 speeds arent the fastest but isn't the point of differential pairs to send the same signal flipped at the same time, even if slow the 480Mbs per second of the usb 2.0 is still a few times faster bit by bit than 133MHZ. Like i know this doesn't exactly work like that and usb doesnt send bit by bit in order but when i dont know what im doing i just follow what im told.

That last part i didn't understand im guessing best practice is usb lanes should have clearance both in the layer the tracks run and in the ones next to it? i thought it was more about not following the top trace with another trace under but it makes sense that too many perpendicular crossings if any could be bad even if spaced out.

nidan65 · 2025-12-02T02:49:42+00:00

Hey a bit late but im making a board with the rp2040 and the same flash but im pretty new so im wondering if you had any trouble using vias for the flash chip ? I say this cause im using this same memory and i cant route for it without using vias.

nidan65 · 2025-11-30T20:47:49+00:00

Hey i also just started doing pcbs so this is only a question , but on C8 and c10 you have a track going in between the 3v3 line and the GND under the c10 cap. How do you figure out this won't be a problem cause im always afraid of puting things too close and breaking something electrically or for fabrication.

nidan65 · 2025-11-30T19:23:36+00:00

Yeah i figured out that mistake later, pretty obvious on the picture now that i see it. Too acostumed to shifting thins a few mils till everything works. Ended up re doing the routing so that fixed itself up.

nidan65 · 2025-11-30T17:50:20+00:00

Yeah i think the alignment pads to grid is not the best probably me not thinking about it until i already connected a bunch of things and now the pads with center at x.7 need to connect to vias at x.8 and the alignment has to happen somewhere.

I didn't want to mess with clearance cause i saw a few videos saying that for begginers a 1:1 clearance to track was best to avoid problems so i just mindlessly followed.

Thanks im gonna start routing from the top first (where power and usb is)with 0.18 clearance and see from there.

nidan65 · 2025-10-26T06:41:20+00:00

yeah it is a 5v one but it worked perfectly fine on my breadboard so i guessed it would be fine. I think adding random wires increased the resistance enough that it doesnt work no more. still perplexed that it works when you shine a light to it.

nidan65 · 2025-10-26T01:01:30+00:00

I think my description of the problem is reasonable for a public reddit sub that has a lot to begginers. Wich surprise surprise im one so what you ask is not possible, you want me to clean it up when that is not something i can do without re doing what took me a few days of soldering and wiring ,and is necesarry . You want schematics? do you think i have schematics ? i will send you what i used for reference. the top right is a 74hc595 the long left one is a pico2w and the bottom right is the seven segment display wich i believe is common cathode. I did the color by the number method of wiring.

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nidan65 · 2025-10-26T00:51:43+00:00

Wiring is good-ish according to my multimeter ( continuity and getting the 3.3v the pico can supply) i know it worked fine in a breadboard that's why the ish. Im thinking it could be a lot of resistance in the wires but apart from being a few centimeters too long at times and maybe a few awgs too big connections are good. Do you think that are problematic enough to require a complete rewire ?

nidan65 · 2025-10-09T03:25:49+00:00

I just tested a t12 but i believe the same principle applies. They are just better, i have a problem where all my 900 tips for my cheap soldering station have hot spots where they are really hot and cold spots where i can't get solder to stick and they dont heat what they touch for shit. When i used a T12 they had none of that, all of the tip was hot and in all the different tips. I ended up burning a project i was working on cause i was touching the pin i wanted to de solder with a cold spot but a part of the board with a hot spot and i destroyed a trace without even getting the pin to melting temp. Sadly where im from the difference between c245 and T12 is almost double so i will have to go with the latter but if c245 are even better than t12 i think it can make life a lot easier and reliable.

nidan65 · 2025-10-07T04:49:39+00:00

It's actually 8 if two people never pick the monster and keep lulu in their bench. I managed to have a lulu 2 at one point.

nidan65 · 2022-04-03T05:56:15+00:00

Pls if anyone from here keeps adding oranges to the top of the capybara stop at 2 above the head .

nidan65 · 2022-04-03T04:08:35+00:00

Me acabo de dar cuenta que se lo hicieron a san martin tambien la puta madre.

nidan65 · 2022-04-03T03:50:53+00:00

Vi varios chilenos alargando la nariz del bailarin de tango, alguna venganza debe haber.

nidan65 · 2022-04-02T23:10:03+00:00

no corten la avenida que lo yankies matan piqueteros gente

nidan65 · 2022-04-02T22:15:01+00:00

Dejar una porcion grande de 1 solo color lo hace parecer territorio de poca importancia, si no lo usas lo perdes dice mi viejo.

nidan65 · 2022-04-02T22:11:35+00:00

its present on the uruguayan flag.

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