Enclosure Suggestions for Energy Monitor setup

Hardware
#1

Hi all, I’m deploying a Pi3 with an I2C shield and a single-channel energy monitor board. I want to wall mount this and feed whichever power run I’m monitor through the box- probably would need to have a romex connector on either side, with the Pi and board inside. I’m thinking I’ll just use a large j-box type enclosure, but I’m unsure how to secure the Pi and monitor board inside- I’m also not sure what to do about the required power for both devices. Is there a female panel mount microUSB female jack I should mount to the outside (that has attached the male end to plug into the Pi?) And I guess I would need a similar panel mount connector for the 12v power for the power monitor board (the plug is “2.1mm I.D. x 5.5mm O.D. x 9.5mm Barrel Connector”). The power monitor board is the NCD “1-Channel On-Board 97% Accuracy 70-Amp AC Current Monitor with I2C Interface”. Hindsight is telling me at this stage that I should’ve sprung for the off-board sensor variant of this, but for now this is what I’ve got…

Thanks!

#2

Hi,
You can get something like this supply


You can share the 12V between current monitor board and this adapter. This adapter will power up the pi.

Off board is a better idea if you are planning to put board and setup in a box. Its keeps wiring simple and easy.

for mounting you could get a box like this
https://www.digikey.com/product-detail/en/hammond-manufacturing/1591XXFBK/HM1048-ND/2094786
or this kind
https://www.digikey.com/product-detail/en/hammond-manufacturing/CHKO10104/HM5289-ND/2567996
I prefer 2nd one. it has opening for wires.

Thanks

#3

Hi again Bhaskar, thanks for the reply! Yes, it does seem like the 12v/5v converter is a good plan…I’ll just need to put together the F jack that matches the 12v adapter supplied with the current monitor board, and get another M jack to hook up in parallel with the converter on the “inside” of the box.

As far as the box goes…I do have a few larger J-boxes (like the second one you linked) lying around…but I guess I’m still a little more remedial in this topic. How do I go about mounting the pi and the current monitor board inside the junction box? I’m not sure what you mean by “off board”. Sorry, I’m new at this!