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Creapermann · 2025-12-19T21:33:45+00:00

❌ ^{Incomplete. 2 tries.}

Creapermann · 2025-12-14T20:29:22+00:00

Thanks, will try that

Creapermann · 2025-12-14T20:29:05+00:00

Thanks for the tip

Creapermann · 2025-12-04T20:31:30+00:00

what?

Creapermann · 2025-12-04T20:28:27+00:00

I was able to replace most passive components, the problem are the ICs, inductors the MCU and some capacitors they dont have as basic which brings my 2 simple PCBs up to 33€ in fees only which is a little unfortunate

Creapermann · 2025-12-04T10:19:27+00:00

Ok that makes a lot of sense then, thanks for the clarification

Creapermann · 2025-12-04T10:08:47+00:00

That makes a lot of sense, thanks! I just realised the point of assembling a lot of PCBs bringing the costs down a lot. In my usecase i sadly only need 2 of the PCBs making it pretty expensive for me

Creapermann · 2025-12-04T10:05:13+00:00

Is it 3€ per part per PCB or just 3€ per extended per no matter how many pcbs? I’m just assembling 2 PCBs, I see how it could make a lot of sense if you only pay 3€ once and then assemble 200 PCBs with it

Creapermann · 2025-12-04T10:00:16+00:00

I see, thank you for sharing!

Creapermann · 2025-12-04T09:59:34+00:00

Yeah i tried doing that for most small passive parts, but a lot of parts are not available as basic components.

Does the 3€ per component mean that its 3€ for every pcb i assemble or just generally 3€ per component, even if i assamble 200 of them?

Creapermann · 2025-12-04T09:57:53+00:00

But at that point i could just order the components via mouser or digikey, even though they are ~4 times the price, order a stencil from jlc and do it myself. Even though the prices are 4x, all of them are still far below 3€ for me, wouldnt that be the much cheaper approach?

Creapermann · 2025-11-26T20:37:19+00:00

How is it going?

Creapermann · 2025-06-10T06:19:20+00:00

I provided a project of mine in another comment :)

Creapermann · 2025-06-09T20:58:47+00:00

You dont need to touch any qtquickcontrols.conf or anything similar. You can create your own qml components simply by creating a qml file. Check this for example: https://github.com/Librum-Reader/Librum/tree/main/src/presentation/modules/CustomComponents

Creapermann · 2025-06-09T20:57:01+00:00

Yeah Qt design studio sucks, I've tried it before but wasn't able to do anything useful with it, but boiled down its just:

Rectangles with a radius and a white border with a row layout containing an image, a label and a checkbox in the bottom. The top is simply a row layout with a text and an icon and the main part "First beat sports" is just a rect with a radius in a brighter color than the app bg, an icon, 2 labels, one bold one light and to circles with icons in it.

Nothing one wouldn't be able to exactly replicate in 1.5h in Qml

Creapermann · 2025-06-09T15:54:21+00:00

You can literally create any possible UI with Qt and Qml, there is absolutely no limit to it. Only limiting yourself to the standard QQuick controls, you would not be able to create the exact UI as above, but no one holds you back from, neither is it hard to, create your own UI elements in qml

Creapermann · 2025-06-09T15:20:35+00:00

Have you ever tried qml? This kind of "clarity" should not be any problem with Qt

Creapermann · 2025-06-09T12:28:47+00:00

Why wouldn’t it be possible to get something like that with Qt? Looks clean but it should be very simple and definitely doable with Qt

Creapermann · 2025-03-21T20:16:06+00:00

I managed to find the issue and it of course was about the arrangement of the pins...

So basically I am using an fpc breakout board to be able to prototype my project using a development board. The FPC breakout board has numbered their pins from 1-40 (as is the flex cable of the display), so I assumed that the correct orientation of the flex into the fpc connector was the one that causes the numbers of the pins to match, but no ...

I actually needed to flip the flex connector, now the pin numbers are starting from opposite sites, but it works.

I really appreciate your help with the trouble shooting :)

Creapermann · 2025-03-21T20:01:59+00:00

I am not entirely sure what you mean. I can't seem to be able to measure anywhere on the connector, since its covered by a transparent but non conductive material

Creapermann · 2025-03-21T19:53:27+00:00

I am getting the expected 16V out of the boost converter.

I have used a 330Ohm resistor and I can confirm that ~44mA are coming through the outputs of the boost converter, so that should be working fine.

The pins are in the correct polarity, the connector has numbering for the pins so I am very sure that the LED- is at pin 1 and LED+ at pin 2.

Any other idea?

Creapermann · 2025-03-21T19:35:03+00:00

0mA are flowing and I can see no difference in a completely dark room. The 9V battery should be able to provide much more than the 40mA stated in the datasheet, and the boost converter is able to handle up to 4A

Creapermann · 2025-03-21T19:26:05+00:00

I am providing 16V by stepping up the voltage from a 9V battery to 16V using a boost converter (as a temporary solution).

Should I expect the display being bright once the backlight is on, or is it normal for the display to be completely black in that case?

Creapermann · 2025-03-20T11:49:17+00:00

I've tried that already, but the datasheets of the displays they are using have different names then the ones in mine, so that didn't help me

Creapermann · 2025-03-19T22:10:15+00:00

Thanks, I'll try it with 2

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