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Xtremme

What kind of displays may I use for a MCP?

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Hi again, need an advice from someone with electronics knowledge as I'm almost clueless on this subject.

 

My goal is to build a 737NG MCP based in an Arduino board, I managed to make the switches work, now I'm trying to realize how to deal with displays.

I would like to use those 7 segments led but they require 8 pins each, as I need 21 displays that would be 168 pins or like 3 dedicated boards just for them.

Obviously this way is not doable, so what type of display could I use for this purpose? Something cheaper and that match the look of the original device.

 

Thanks in advance for any input.

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