Electronics > Projects, Designs, and Technical Stuff
small ISP connectors
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mariush:
Your problem made me wonder if you could have something like this:



The connector could be a stack of 2-3 thin pcbs .. both sides with 3 1mm..1.27mm pins soldered flat to the circuit board.... and a middle pcb or something which could be pushed in between the two small boards so that it would push the boards onto the through hole half bits and make solid contact.

Another option ... it's more expensive, but maybe you could just solder a microusb connector and be done with it? You have microusb with 5 pins (power, data and otg pin) and you could maybe use the housing as 6th wire?
You'd require maybe a custom usb cable or your programmer would have to be customized to separate housing from ground.  It's about 20 cents for the connector, in volume.
Amper:
Nice idea! Though some sort of spring will be necessary i think, at least if it is supposed to last for a lot of cycles.

Micro usb is a nice idea but i dont really like special pinouts on standard connectors, technically i cant argue with it though.
cgroen:
Amper,
use a tag connect and be done with it, no need to invent more or less practical solutions when one is readily available and tested. And NEVER use a USB connector or anything else standard for such a a thing, it will 100% sure end in disaster ;)
Amper:
I wasnt the one suggesting new designs :P

I think its allways a good idea to think of new ways, thats what sets you apart from all the other designers in their mental boxes. It just has to be a sound idea.
TomS_:
What about pogo pins in your own little custom programming adapter? Something where you place the board into, hold it down and program.

You wouldn't even need any pads at all then as they could contact the IC legs directly (potentially), or you could put them anywhere it was convenient.
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