I would like your opinions & ideas on a problem I am having.
I am currently designing a prototyping platform (everything is still very beta, but I might post some general info on the project in a separate thread.) The system is modular, and basically consists of a motherboard, with multiple modules which you can connect to it. There are ~ 11 - 15 signals (as I said, things are still beta.) which need to be connected between a module and the motherboard. Currently we are connecting things with regular pins, like the Arduino shields. However, the modules are so small (33mm x 33mm, smd components), that almost 30% of their bulk is created by these connectors. I am currently looking for alternate methods of connecting them.
Does anyone have any suggestions?
I really like the way SD cards connect. I was thinking that it might be able to create a similar system. Does anyone know the name of the little connectors in the SD card connector? (I attached an image in which I circled what I am talking about.) I am speculating, that if you could get those individually, that you could create your own sd-card-style connector. (this also has the benefit of ensuring that power connects before logic level signals connect, which we don't have at the time.)
Alternately the MMCplus has a layout that would work for our system. However, I was unable to find anyone offering connectors for MMCplus. I am either using the wrong search-term or... they are no longer being fabricated or they are some ultra secret licence? (I was searching on alibaba.com and similar sites)
here is a picture of what I am talking about:
Thoughts and Ideas would be appreciated... and if someone knows the name for that tiny part I am looking for, that would help me heaps as well.