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This is like a software engineer's idea of modular hardware. Looks like fun and may be great for one-offs. The problem for using a system like this for early

This is like a software engineer's idea of modular hardware. Looks like fun and may be great for one-offs. The problem for using a system like this for early prototypes and proof-of-concept is that the hardware AND software of a cost-optimized production device is going to be from a completely different planet. I like the edge connector though - nice way to get a maybe-someday connector on a board without adding visible BOM cost. The board routing involved will cost money, of course, and the gold plating shown, if necessary, is also a cost adder.

mmoskal 5y ago
If you want to make a million copies of something, Jacdac is unlikely to help you much outside early prototyping. OTOH, if you want 10 copies of something it may simplify things - you don't have to solder any wires 10 times. If you want more, you can get a PCB with holes matching holes on modules and screw them in with M3 screws (skipping the cables - the holes carry signals), or solder them down. Gold plating is not strictly necessary, depending if you plan to use the plug thousands of times. Edit: also very good observation on top of the comment - Jacdac is indeed a way to bring "modern" software engineering practices to hardware design.