Matthew Cook vk5zm at bistre.net
Mon Feb 19 10:50:47 AEDT 2018


Will this board stack upon the top of the HAT connectors on a Pi 2b/3?

Recently I came across the Blade Uno BB01 that allows you to stack a Pi
and  a HAT that sit alongside each other.  This arrangement allows you to
mount it in a 1RU 19" rack with ease.  You can see an image on my blog (
http://zedm.net/archives/261).  I've since removed the DE9 connector and
replaced it with a low profile right angle connector.  So far no signs of
overheating of the Pi, There is opportunity to mount a small 40mm fan to
the side and move air if required.

The downside is the HAT needs to be full size or at least full length to be
able to take advantage of the standoff mounting arrangement.  It does
however make for a nice neat solution that does not require internal wiring



On 19 February 2018 at 07:59, Glen English VK1XX <
glenlist at pacificmedia.com.au> wrote:

> Right now I have a bunch of footprints for standard 0.15" (cheap) (3.81mm)
> 90 deg green plug in connectors.
> If you dont place the connectors, then soldering to the pads and holes is
> easy.
> However, there is alot of IO. The alternative would be plain old 2.54mm
> (0.1") header single rows, you can easily solder to those or use headerpins
> and solder to those. but... I like to stay with connecvtors easy to connect
> to and plug in .
> Ideally, I try and keep all the connectors on one side of the box, or two
> , to make putting it in a a box easier
> Usually  I target Hammond extrusion boxes, connectors on ends only.
> all these connectors though, we're running out of room for small boxes.
> Some things are opt, some required.
> The USB, ethernet from the host micro (odroid/RPi) hang out one end with a
> few connectors,
> SOME connectors dont need to be on the edge the option stuff people asked
> for.
> So I was thinking of having a matrix- most people might only use 4 to 6
> IOs plus power.
> The idea is would be you'd wire jumper the IOs you wanted to a plug in
> green thing common IO connector, this way we dont have to consume every bit
> of the edge for connector real estate for 90% you dont use.
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