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I am trying to make microscope from my old Xiaomi Note 10. I made kiosk mode android app. But to make it really convenient I have to move camera away from screen.

So I am exploring options to make extension cable. (I guess there is no option to buy it)

One solution I see is to order flexible PCB. I am failing to find FPC connector names. Most are 24 pin and one is 30 pin.

I hope someone can tell me how to identify these FPC connectors. Or may be there are some extension cables already available.

Something similar connector seems to be Molex SlimStack 0.4

Camera with FPC connector

Max Fry
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FPC connector name

I call those "dual-beam board-to-board connectors". Digikey lumps them with "mezzanine connectors". Each manufacturer calls them something else, if anything at all.

how to identify these FPC connectors

Please try my Identiconn. Try the great Digikey search engine. To narrow it down, you will need to measure the exact pitch.

there are some extension cables already available.

Unlikely. This is the kind of assembly you must make yourself by designing a flex circuit and having it manufactured (not cheap).

options to make extension cable.

Be aware that that may not work: the added capacity of the cable and any discontinuous impedance in the traces may prevent high speed communications.

Davide Andrea
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    Thank You! Awesome website – Max Fry Jun 30 '23 at 13:39
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    Randomly extending the wires may not work. You should find out the pinout of the connectors, and like said in this answer, design a flex PCB with wires having specific differential and single-ended characteristic impedances over a ground plane, with possibly bypass caps on supply pins. And, the wires may still be too long to work. – Justme Jun 30 '23 at 16:19