Waterproof case?

24 posts
by sharix » Thu Jul 05, 2012 8:52 am
Does anyone sell a waterproof case for the Pi, possibly with rubber waterproof covers for unused connectors?
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by jamesh » Thu Jul 05, 2012 9:11 am
Afraid not, unless you count Tupperware....
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by thexman » Thu Jul 05, 2012 1:13 pm
RS do a full range of IP66 connectors how ever most of them require the motherboard to have the base connection thats quite a bit of soldering required but if your good with an iron take a look over there.

i would then presume you could seal the Raspberry pi into the liquid plastic type case and let it set onto the PCB and components. seen that done a few times looks cool just its non reversable later on.

theres even a IP66 SD slot for the adventurious
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by walleee » Fri Jul 06, 2012 11:09 am
what would the idea be? like what's the purpose of a waterproof pi?
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by sharix » Fri Jul 06, 2012 11:13 am
working under extreme weather conditions - rain, wind, snow
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by walleee » Fri Jul 06, 2012 3:49 pm
commericial applications and such?

hmmmm i'd like to see where this goes.
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by pygmy_giant » Fri Jul 06, 2012 6:03 pm
silicon sealent?
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by sharix » Fri Jul 06, 2012 6:57 pm
Nah, nothing commercial, just my personal weather station. :)
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by fkeel » Tue Jul 10, 2012 9:49 am
you can do a lot of magic with silicone... here or some images of a waterproofed IR webcam: http://fkeel.blogspot.de/2011/06/underw ... ebcam.html

I was also able to waterproof a microsoft kinect by just coating it with silicone (and no the IR laser does not work under water :-( ...)
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by afclewis » Wed Jul 11, 2012 4:12 pm
Thinking about plugging everything in then dipping my PI in epoxy resin, but am unsure if the epoxy will damage anything on the PCB or chips, thoughts.......
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by afclewis » Wed Jul 11, 2012 4:15 pm
Thinking about plugging everything i need in then dipping my PI in epoxy resin. Only concern is possible damage from the chemicals in the epoxy to the PCB or chips. Has anyone any thoughts?
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by sharix » Wed Jul 11, 2012 6:32 pm
I've ordered some sensors on breakout boards that are already dipped in epoxy so this shouldn't be a problem.
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by KenT » Wed Jul 11, 2012 8:43 pm
Don't know about the RPI but I've been running a PIC based servo controller outside, unsealed, for a number of years without a problem. The servos control a pan and tilt mechanism for a small CCTV camera used for viewing wildlife. The board is inside an unsealed plastic box in a wooden shelter. I leave it on 24 hours a day with the aim of keeping it warm and dry. I have to clear out the earwig rass (pooh) and dead earwigs once a year. Its amazing where they get to.

Some of the connections for the cables are inside IP65 boxes with glands, I find these get damp inside probably due to condensation. I reckon a bit of heat and ventilation is better than sealed boxes.

I have also run a bare board CCTV camera module in a tit box for many years before it packed up.

Some years ago at work the hardware boys had trouble with varnishing PCB's as the varnish changed the impedance of the connecting tracks and stopped it working, don't know whether that still applies; they were working with only a few Mhz in those days, now its in the 100's of Mhz.

Do you really need a RPi for a weather station that requires no displays, how about something simpler and cheaper like a PIC or PICAXE.
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by ScottBouch » Thu Jul 19, 2012 7:28 am
A friend of mine ran a regular in doors cctv camera outside, just sheltered under the eaves of his house.... he said it held up for years, until it was turned off once, it never came on again...

He reckoned it was the small amount of heat generated by the camera electronics that kept it dry inside... turning it off was fatal as moisture got in, and stayed.

Only detriment of dipping it in resin that I can think of is the heat dissipation of the processor and regulator.. you're adding a layer of insulation to them; no air movement over their surfaces, may bake them...?

You can buy waterproof bulkhead connectors (usb, Ethernet, power etc..), fit these to the side of a larger IPxx box, and connect to the Pi inside the box.

Good luck with it though!

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by liz » Thu Jul 19, 2012 8:52 am
Has anyone potted one yet? We did say months ago when asked about it that we thought it may not do wonders for the device (thermal expansion/contraction problems), but I'd be interested to see if anyone's tried it yet.
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by sharix » Thu Jul 19, 2012 9:05 am
I most likely won't do it. I decided to use a tupperware case. :) I'll throw in a couple of those dehumidifier bags you get in shoeboxes.
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by RaTTuS » Thu Jul 19, 2012 9:07 am
if you stick heat sinks on the 3 hot parts and
then resin it up [use bluetack in the USB / NIC / HDMI / power ] leaving the fins out of the resin you may have good luck ....

YMMV [almost certainly ]
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by the9inger » Tue Jul 24, 2012 7:09 pm
i know it is finished but wouldn't it be possible to put it in one of those outdoor extension lead covers as that is quite watertight
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by darkstar » Tue Aug 28, 2012 4:47 pm
I would use a tupperware (or clone) case, waterproof connectors with wires on the back to plug to the RPi, then seal the holes with lots of silicone.

Note that when silicone goes off it releases lots of acetic acid, so I would reckon that you should leave the case open for a day or so to ensure that it would all go off. I don't fancy electronics in acetic acid vapour (or am I being neurotic?).

Sainsburys do some tupperware clones with clip-seal tops.
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by darkstar » Wed Aug 29, 2012 4:05 pm
A futher point about waterproof cases is that of ensuring that there is no flexing of the perforated box side through which the connectors would go.

For where waterproof cables are inserted then the cables can be sealed into the case side/end.

See how BT (Open Reach) seal their under-pavement units. They have a base into which the cables are inserted and then a "can" that seals over the top.

This could be hacked with a sealable beaker. A stiffener goes inside the end-cap with a hole in the middle through which the cables go and get sealed in. Also on the stiffener is a mounting bracket onto which the RPi and other electronics is mounted. Wrap with some foam to stop things wiggling about and then put the beaker over the assemblage. When mounted upside down this should remain water/rainproof for years.

See: http://www.sainsburys.co.uk/sol/shop/ho ... 700ml.html
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by Serac » Wed Aug 29, 2012 9:23 pm
Look for Conformal coatings - These can be applied to most PCBs to provide a degree of moisture resistance. There are also two part silicone rubber mixtures available designed specifically for potting electronic systems that may require repair at a later date.

If I were to weatherproof a Pi, it would be a conformal coating and then mounted in a cast aluminium box (or a custom machined case) with sealing gaskets/grommets for cables.
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by ftn1975 » Tue Feb 05, 2013 8:23 am
I am looking for the same thing. Planning to build an audio system for a jetski, built around the r-pi. HDMi to a waterproof touchscreen on the glovebox, and audio out to waterproof amplifier feeding 2 6.5" woofers, and a 10" sub under the seat.
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by Etienne » Fri Mar 07, 2014 4:14 pm
Outdoor_Pi.jpg (49.47 KiB) Viewed 4642 times

I chose the 'tuperware' like case, it runs for weeks in a very rainy & windy environment this winter (most wet winter here in French Britany!).

The only issue I get is few wifi losses, but I also get few ones when using it indor, I suspect either power supply or my wifi router...
bird.jpg (62.79 KiB) Viewed 4642 times

Lens for picam and supply wire that goes through the box is basically glued (dual component type of glue you can find everywhere).

PS: thank you to brainflakes for the motion detection script.
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by cyrano » Thu Mar 13, 2014 1:07 pm
The best thing you can get (unless spending a boatload of money) IMHO is still a clear Otterbox. It comes in 3 sizes and is easily available from adafruit and a lot of others.

They've been tested under water by someone in Australia up to -110 m. When the pressure gets too high, the seal blows.

I've been using one for underwater video, it's been tested and performs well. It spend weeks in a pond, with a moisture detector and stayed completely dry.

Obviously, under water, heat isn't as big a problem.

I hope to use it soon. Then I will be able to tell if using the camera through the clear perspex is OK and I can start experimenting with lighting, or if I need to figure out something else.

The only cable coming out is a UTP, providing power over ethernet and communications with the camera from a laptop.
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