🔌General Home Automation > User Modified Devices
SBC inside a CM15A
Noam:
--- Quote from: Tuicemen on March 07, 2019, 12:11:40 PM ---
--- Quote from: Noam on March 07, 2019, 11:44:39 AM ---Authinx might be able to send you an empty shell - or you might consider 3D printing one.
I've also heard Bondo can work wonders in situations like this - just use some non-metallic mesh as a base, slather it on, sand it smooth after it dries, and paint it ;)
--- End quote ---
The last time I asked Authinx for a case they sent me a whole new CM15A. rofl
--- End quote ---
Well, you could ask for another shell, and if they send you another whole unit, you can just take the shell you need, and put the rest on the shelf for later.
--- Quote ---I have considered doing a patch job as I don't have access to a 3D printer. :(
--- End quote ---
Neither do I. I have a friend with one, but he doesn't have the time to do the CAD design for the stuff I want him to print. If I find an existing design, he's usually pretty good at printing it for me. Eventually, I'd love to get myself a printer.
--- Quote ---I'll see how my case mod goes for the addon board before I try patching holes as some will overlap.
Hot melt glue may also work for this as it comes in several colors.
I also may modify the addon board to reduce the amount of modifications required to the case. ;)
--- End quote ---
Good luck. You could always add flames or racing stripes to hide the patch job a bit :)
Tuicemen:
--- Quote from: Noam on March 08, 2019, 10:27:39 AM ---Well, you could ask for another shell, and if they send you another whole unit, you can just take the shell you need, and put the rest on the shelf for later.
--- End quote ---
I'll see if they have a returned, damaged or non repairable unit they can send me, I doubt they have empty shells laying arround. I can use the swiss cheese looking shell as a templet.
Tuicemen:
--- Quote from: Noam on March 08, 2019, 10:27:39 AM ---Well, you could ask for another shell, and if they send you another whole unit, you can just take the shell you need, and put the rest on the shelf for later.
--- End quote ---
Forgot to mention here, Authinx actually sent me a brand new CM15A which I ended up doing the mod to and shipped it back. I had ment to take some pics but in my haste forgot :-[
I ended up just hotmelt gluing the other holes in the old case and it looks not to bad.
Today I wire another one of my first CM15A mods USB connections internally to the Pi Zero Test pads.
This time while I had the CM15A tore down I took a pic of the circuit board so I could create a wiring diagram for others to follow as well to keep documentation for when I do it next. You don't want to mess up the positive negative wires. Mixing the green and white (D+ and D-) wires won't damage anything it just won't work.
You'll want steady hands and a volt meter just so you can test things.
I provide no guarantee for this so double check every thing as bit to much solder can short things out. So get a good magnifying glass to check connections prior to powering up as well. >!
Tuicemen:
I added a DHT 22 temperature/Humidity sensor to the Pi/Cm15 with the USB hat a few weeks back using the GPIO pins.
The files can be found here: http://forums.x10.com/index.php?topic=31417.msg186490#msg186490
With more info here: http://forums.x10.com/index.php?topic=31416.msg186483#msg186483
The info displays in HomeGenie for a quick indoor reference even if the values are a bit off.
Today I added a Pi power button with LED indicator to the front of my moded Cm15 with the USB hat and plan to add one to my other pi/Cm15 combo at my off grid place once I get back up there. This uses the GPIO pins as well and provides a nice power down option simular to "sudo poweroff" with some code added to the /boot/config.txt file I can also power up :)%
I used info found here https://www.embeddedcomputing.com/technology/open-source/development-kits/raspberry-pi-power-up-and-shutdown-with-a-physical-button
LED goes out when it's safe to pull the power to the pi and lights up when Pi OS has loaded
If your like me and don't have a GPIO header you'll have to do a bit of soldering.
Note: The button location will work for both the old style CM15 board as well as the newer ones
>!
bkenobi:
Where is the DHT located? Did you mount it inside the case or simply glued/taped to the outside?
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