# Wide Input SHIM and Automation pHAT

**URL:** <https://forums.pimoroni.com/t/wide-input-shim-and-automation-phat/10191>\
**Category:** Electronics\
**Created:** [March 17, 2019, 10:31pm UTC](https://forums.pimoroni.com/t/wide-input-shim-and-automation-phat/10191 "2019-03-17T22:31:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Febu](https://avatars.discourse-cdn.com/v4/letter/f/e56c9b/32.png) [@Febu](https://forums.pimoroni.com/u/Febu)\
**Post date:** [March 17, 2019, 10:31pm UTC](https://forums.pimoroni.com/t/wide-input-shim-and-automation-phat/10191/1 "2019-03-17T22:31:52Z")

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Hi,

I’d like to combine the Wide Input SHIM and the Automation pHAT.  
However, when stacking the Wide Input SHIM on top of the Automation pHAT, the SHIM is just a tad too long. Thus, I was wondering whether the last millimeters might be, kind of… expendable?

As far as I can see this part only carries some writing and nothing conductive, but I’d hate to break the SHIM if I’m wrong… Does anybody happen to have some more insight?

Thanks a lot.

 ![20190317_185853-2](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/3/31fdcb43d42860071b79f94186e9ac4e1d8849fc.jpeg)

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**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\
**Post date:** [March 18, 2019, 9:37am UTC](https://forums.pimoroni.com/t/wide-input-shim-and-automation-phat/10191/2 "2019-03-18T09:37:32Z")

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Does it still touch the relay with the female header it comes with attached?  
Just test fit without soldering anything until you sort out exactly how your going to do it.  
If doesn’t touch when on its female header you could put a 11mm stacking header on the automation pHat

> **[11mm 2x20 pin Female GPIO Header for Raspberry Pi 3/2/B+/A+ – Pimoroni](https://shop.pimoroni.com/products/2x20-pin-gpio-header-for-raspberry-pi-2-b-a?variant=1132812269)**
>
> Connect your project directly to your Pi with these 2x20 pin GPIO headers!

  
Then mount the input shim on the female header it came with it on top of the automation phat.  
If it still touches when on its female header do the above but reverse them.  
Wide input shim on a stacking header and automation phat on top using the female header that came with it…

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<div class="post-metadata">

**Author:** ![gadgetoid](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/gadgetoid/32/13_2.png) [@gadgetoid](https://forums.pimoroni.com/u/gadgetoid)\
**Post date:** [March 20, 2019, 3:53pm UTC](https://forums.pimoroni.com/t/wide-input-shim-and-automation-phat/10191/3 "2019-03-20T15:53:06Z")

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While I don’t recommend cutting fibreglass PCBs lightly (so much dust, argh!), there’s nothing important under that text so you should be able to cut and mount it on top.