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Topic: Extra long headers for shields? (Read 3 times) previous topic - next topic

skootles

Jul 19, 2012, 06:40 pm Last Edit: Oct 22, 2012, 03:05 pm by skootles Reason: 1
EDIT: Found them. 6-pin version and 8-pin version.
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Hey all, I need some advice here.

I just got my first Arduino shield back from the fab and I'm pretty excited about it. I had grabbed some headers that were advertised as "long" and "stackable arduino headers" but I've found that they're too short (10.5mm). When I put my shield on top of an Arduino Uno the board presses against the top of the USB port. This is a problem because it can cause a short on my shield. Here's a photo:



The only other shield I own is an ethernet shield and its headers are really long (14mm). When I put it on my Uno, it has no problems touching the USB jack:



I found some extra-long headers at a local shop but they were so expensive - $1.10 to $1.20 for ONE 6 or 8-pin header. Adding these to the shields will add about $5 to the final cost, which sucks.

Is this a regular problem for people who design shields? Are there any places online I can get these "extra-long" headers? I tried looking around but found nothing conclusive. Should I include these extra-long headers when I sell them, should I include the "long" ones knowing they'll be too short for people, or should I let people buy their own headers completely?

MichaelMeissner

Adafruit offers them a bit cheaper, though with shipping you probably should combine with other orders: https://www.adafruit.com/products/400.

I wish they were more common.

skootles

Those don't say how long they are, and they're also male headers. I found these ones from Adafruit but they're too short (10.5mm, like in my first photo). I wouldn't be totally opposed to using male headers, just as long as they're long enough.

Graynomad

#3
Jul 20, 2012, 12:30 am Last Edit: Jul 20, 2012, 12:37 am by Graynomad Reason: 1
Have a look at the Samtec SSW/SSQ series. They have tails up to 14.83mm long.

According to my data sheet the 8-pin version would have the part # SSW-1-8-24-F-S, but I can't find that at Mouser et al so I may have the number wrong because I have found them before.

EDIT: Here's the data sheet www.robgray.com/temp/SSW-SSQ_TH.pdf

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Rob

Rob Gray aka the GRAYnomad www.robgray.com

liudr


skootles

Those ones are still only 10.5mm long. Actually, this is where I get the majority of my components, they're cheaper than almost everywhere else.

I ended up revising my design to not go over the USB or power jacks on the board, so I have no problem with using the shorter headers now.

liudr

If you use EAGLE, add the shape of the Arduino connectors in a keepout layer. BTW, they have 10-pin female headers too, for UNO R3

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