Question about the display. I bought one and connected it to the Pi without any problems. What I want to do though is not hook the Pi right on the display. I need to be able to have them separated. Do the cables exist to do this?
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Question about the display. I bought one and connected it to the Pi without any problems. What I want to do though is not hook the Pi right on the display. I need to be able to have them separated. Do the cables exist to do this?
Hi Ken,
There will be a finite limit, beyond that it will degrade and will not work. That limit you'd have to experiment and try (it will partially depend on the cables you use).
I've not seen such a cable though, you could try assembling one out of a couple of the flat flex strips and ribbon cable, if you cannot find a longer flat flex to meet your length requirement (it is a standard flat flex, most likely 0.5mm pitch but you could probably measure that with a ruler, measure out the distance between the first and last pins and divide by (# of pins -1).
However, you'd be operating it out of spec, there is no guarantee that it wouldn't fail. You'd possibly be fine if you're restricting yourself to (say) 30cm, but if you're expecting (say) 1m or 3m then it would definitely need testing.
Someone showed me Adafruit has ribbon cable that should work. That have varying lengths. I just have to take my Pi off the display and see how that connector opens to let the existing short ribbon cable out. Hope I can get at least 6" out of a new ribbon. That's only 2-3 inches longer than the existing one.
Hi Ken,
When you come to replacing the flat flex cable (FFC), there are some close-up photos showing the connector in the opened and closed positions here:
Raspberry Pi 7” Capacitive Touch Display: Assembly and Enclosure