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I was pretty stunned when I disassembled my Sonoff TH Elite by the way the display was connected to the PCB. Somehow the "foamy" piece is pressed onto the blank contact surfaces of the PCB and this works?

enter image description here enter image description here

Can someone elaborate how this works or how this connection is named?

Thanks.

Boern
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    See [Elastomeric connector](https://en.m.wikipedia.org/wiki/Elastomeric_connector) on Wikipedia. I usually call them "zebra strip" or "LCD connection rubber", but to each their own. – ocrdu Aug 19 '22 at 08:18
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    It is using conductive rubber, see this: https://www.fujipoly.com/usa/resources/design-guidelines/design-guidelines-connectors.html – Lundin Aug 19 '22 at 08:20

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Can someone elaborate how this works or how this connection is named

It's an elastomeric connector of the zebra strip type: -

enter image description here

Image from wikipedia. Notice the little individual carbon connecting strips separated by insulation. Close-up: -

enter image description here

Marcus Müller
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Andy aka
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