Let's say I have a chassis housing a raspberry pi.
I have a second chassis with some neopixels. I want to connect these two chassis with two panel mount connectors and a cable. The cable would be sending the data from the rpi to the neopixels.
What sort of connector would you recommend I use? Something cheap, panel mount, and not universally used for anything else, ie, USB connector or 3.5 mm connector are both bad ideas for obvious reasons.
I don't want to use a ribbon cable either, please assume both chassis are "sealed".
Maybe some sort of DIN connector? What is the standard connector for GPIO type data?