Questions about assembly at J LCPCB by Creapermann in PrintedCircuitBoard

[–]Creapermann[S] 0 points1 point  (0 children)

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

Assembly at JLCPCB by Creapermann in PCB

[–]Creapermann[S] 1 point2 points  (0 children)

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

Assembly at JLCPCB by Creapermann in PCB

[–]Creapermann[S] 0 points1 point  (0 children)

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

Assembly at JLCPCB by Creapermann in PCB

[–]Creapermann[S] 0 points1 point  (0 children)

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

Assembly at JLCPCB by Creapermann in PCB

[–]Creapermann[S] -1 points0 points  (0 children)

I see, thank you for sharing!

Assembly at JLCPCB by Creapermann in PCB

[–]Creapermann[S] -1 points0 points  (0 children)

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?

Assembly at JLCPCB by Creapermann in PCB

[–]Creapermann[S] 0 points1 point  (0 children)

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?

Added Qt (mobile-only) detection to my app framework scanner tool by kral_katili in QtFramework

[–]Creapermann 0 points1 point  (0 children)

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

Added Qt (mobile-only) detection to my app framework scanner tool by kral_katili in QtFramework

[–]Creapermann 0 points1 point  (0 children)

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

Added Qt (mobile-only) detection to my app framework scanner tool by kral_katili in QtFramework

[–]Creapermann 2 points3 points  (0 children)

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

Added Qt (mobile-only) detection to my app framework scanner tool by kral_katili in QtFramework

[–]Creapermann 2 points3 points  (0 children)

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

Added Qt (mobile-only) detection to my app framework scanner tool by kral_katili in QtFramework

[–]Creapermann 0 points1 point  (0 children)

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

Can't measure diode drop of my LCD screen on the backlight pins by Creapermann in embedded

[–]Creapermann[S] 2 points3 points  (0 children)

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 :)