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poboy

Multiwii Pro Flight Controller Case

by poboy Oct 10, 2013
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Looks to me the well for the baro is over the reset switch.

Hmmm . . I wonder if there are several versions of a "Multiwii Pro" board out there?

I designed this around the board from the Hobby King site (the red board). I added a pic of this board to the gallery. The baro sensor is the small gray chip on the upper right of the board (near the motor/ESC output pins). The chip has a small hole in it to allow ambient air pressure sensing.

Yup, you're right there are several versions around. I have the Hobby King version, and the chip you describe is the baro. I thought that you were inferring that the reset switch was the baro. Maybe i'm not seeing the "well"?

I think I should point out that the foam (or whatever you use in the baro well) should be porous to allow the baro port to read ambient air pressure, while "deadening" moving air around it. Something like the foam they use over speaker grills. You shouldn't use something solid/non-porous (like styrofoam for instance) which might otherwise seal up the baro port. Maybe cotton would work? Or a piece of sponge?

The "well" over the baro sensor is a "closed top" well - that is, the well does not open up through the case top. This will allow you to insert a piece of foam in the well such that when the case is closed the foam is trapped in the well, case top, and against the baro. You can't see the baro well in the pic since it doesn't protrude through the case top (otherwise the foam would fall out). You can see it in the Thingiview of the case top stl file.

The "wells" for the LEDs and reset switch are "open top" - that is, you can see through the case top to the board below. There are three of these open-top wells - the "zigzag" shaped well is the one that allows access to the reset switch. These could have been just openings in the case top - but then you would have to look straight down to see the LEDs. Depending on how you mount the case in your craft, it might be difficult to do this. I decided to make wells so that you might be able to see the LEDs at an angle via reflectance off the well walls. As it turns out, the blue ABS I used doesn't reflect the LED light too good - maybe if I used natural-color ABS?