Waterproofing the Qwiic differential breakout boards?

Qwiic System
1

Hi,

I’m looking to use the Qwiic differential breakout boards here to extend some humidity sensors that will be outdoors:

https://www.sparkfun.com/products/16988

However, I’m not sure of the best way to waterproof the board itself, as well as the Ethernet and I2C cabling that will be going into them?

I measured it and this board is around 57mm x 26mm x 18mm (L x W x D).

Is there some compact way to waterproof the Qwiic endpoint, as well as the Ethernet cable coming in one end, and the RX/TX/GND/3.3V cabling coming out the other side? (It needs to be compact for several…non-technical reasons on the home-front, shall we say, aha).

I was thinking maybe some really small IP-rated box, with some kind of glands, but I can’t seem to find anything that small? Or does anybody know of any?

And I’m guessing spraying some kind of conformal coating wouldn’t be enough, since these are exposed to the elements?

Or how else would you tackle this problem?

2

I’ve been using 2 methods for waterproofing lately:

Hot glue everywhere

Liquid Electrical tape (or ‘silastic’)

I think if you use one of those and a small box like you mentioned it should be fairly waterproof