Can anyone attest to the feasibility, reliability, ease of soldering etc for mounting a PCB onto another with a direct soldered connection? I've seen pictures but sometimes words are more important than pictures. I'd like to solder a promini to a larger PCB. I found custom short symmetric headers but they're expensive!
I've soldered them directly to and with headers on mother boards.
Headers are relatively inexpensive on eBay.
Solid AWG 24 would work.
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The "round pin" style of headers are much shorter than the standard header pins. They're a little more expensive but not by much.
perigalacticon:
I found custom short symmetric headers but they're expensive!
OK, so "expensive(!)" can be a relative term, but it is more likely that you simply aren't looking hard enough, or you haven't heard of clippers yet.
If you want the functionality of an arduino on a pcb you're designing, why not take the publiished pcb designs
and incorporate them into your board?
Allan
You can always just mount the ProMini directly.
see:
https://forum.arduino.cc/index.php?topic=445951.msg3402425#msg3402425
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Normal 0.1" pin headers are OK, trim after soldering with cutters.
Cheap.
I was thinking of incorporating the pro mini into a toy I am going to make 50-100, myself, I would like to keep labor to a minimum. I was hoping I could find male header that was short enough I didn't have to clip it. I specced a custom 12 pin header with .1" posts at samtec but these were $.50 each, I was surprised I didn't find a std header pin for this yet but I'm a novice hardware developer.
If your only making <100, what's the labour in clipping standard headers? Very small. Do the lot in an hour?
If you're talking millions that's a different ballgane.
Allan
perigalacticon:
I was thinking of incorporating the pro mini into a toy I am going to make 50-100, myself, I would like to keep labor to a minimum. I was hoping I could find male header that was short enough I didn't have to clip it. I specced a custom 12 pin header with .1" posts at samtec but these were $.50 each, I was surprised I didn't find a std header pin for this yet but I'm a novice hardware developer.
You can custom order header pins of any shape, form, length, bend, any length plastic carrier. We had to do that for a customer when his headers were discontinued.
Paul
The headers would have been $1 per board, as much as the PCB.
DIP sockets!
cut the center rails to separate for the proper spaces.
less than a dollar each. more like 30 cents.
I think I get them a few pins longer.
Why do you use cut sockets instead of female headers dave-in-nj?
pert:
Why do you use cut sockets instead of female headers dave-in-nj?
much lower profile and cost.