Custom made APM2.5+, APM2.6 specific external compass module
We made easy to use external compass module for APM2.X Flight controllers. If you need to have external compass and you don't want to change your GPSes yet. Here is your best and easiest choice for it.
This module fits directly to your APM2.X boards. If you have APM2.5 board, just disconnect internal compass by disconnecting jumper and add this board.
As board is a standalone board, you can mount it easily places that have least of magnetic interference.
Board comes with connecting cable and it fits directly to external I2C port on APM2.X boards.
Orientation:
If you put components down, connector forward it is same as in 3DR GPS (Manual: Roll 180)
if you put components up, connector forward it is same as standard APM (Manual: None)
Get your from jDrones store: http://store.jdrones.com/APM2_6_Compass_p/jdmagneto02.htm
Price 14.99 USD
Regards,
Jani
Comments
Today I got printed version of external magnetometer case. Other half had to shrink 1% for proper fitting. Fitting of magnetometer I try as soon as get one. Weight of plastic parts is 9 grams. Solidworks gives weight 9.6 grams
This is new version with strain relief. I added also corner supports for all four screws. 30% fill ratio with automatic cross support filling should be very solid. These values applies to Ultimaker but perhaps for other printers also. STL -files are in Grabcad: https://grabcad.com/library/jdrones-external-compass-case-1
If someone has any wishes for this model, please tell it as soon as possible. I might do modification later today (saturday morning here) or tomorrow.
No it doesn't block mechanically yet. Only thing it has is possibility to add thin rubber foam or equivalent for sealing te cable hole.
But that feature is easy to do so I'll add it.
Is cable and connector same as on Ublox GPS board? I have that GPS already and connector dimensions could be measured from it. Or perhaps there is connector 3D model somewhere.
case looks nice. is cable hole in way that it also blocks cable to come out?
Here it is. 3D models are here: https://grabcad.com/library/jdrones-external-compass-case-1
I could modify it easily if needed.
Thanks for a tip! Weird if I haven't seen those buttons before. Perhaps Ipad/chrome doesn't show those and it is only I have used so far.
I post update here when case is ready and uploaded to Grabcad. My computer and spare computer broke recently and I need to build new. It might take few days to install everything again. Modeling is done in an hour.
Looks good. For Images from another location use Image button and "From a URL". Then it will look like this:
Let me know when your compass case is ready. Below board it's all flat, components are on single side only.
I'll upload external compass and Unlox gps casings to Grabcad.com if someone needs them meanwhile Jdrones begins delivery of industrial version of casings. Ublox GPS casing is ready and magnetometer casing will be modeled soon. 3DR GPS has different position for cable so this casing doesn't fit for it.
Ublox case image (hopefully image is visible, so far I haven't found correct code for showing image in text):
[url=http://postimage.org/image/a0fq4n6f7/][img]http://s5.postimage.org/a0fq4n6f7/image.jpg[/img][/url]
Here goes. I will add this to our document site too
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