LibrePilot Forum
General Category => General Discussion => Topic started by: bomaht on April 30, 2016, 07:58:35 pm
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I know the input voltage is 4.8-15v. But I'm building an ultra light racing quadcopter using. Revolution board. I may or may not use the oplink and I'm concerned that my wire size might be too small. The distance from PDB to FC is less than 2 inches in wire length and its 20 awg size. I'm also powering the receiver at 5v through the flexiio port. Should I be concerned at all? I'm kinda new to this board and such.
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Hi Bomaht,
I have the PDB and FC sitting stacked on my quads, about 2cm distance (less than an inch). I am powering it from the PDB's 5V BEC with a short connector (about 3inch, 7,5cm). It should be hard to get into trouble with a short cable, as long as your power source (BEC) delivers a good signal in the proper range for your FC and receiver (the FC output is not regulated). The only issue I know is, when you use long cables with bad quality and/or too small diameter, the signal loss then could be too much. I have that problem with one of my FPV cams, I had to shorten it, and will replace it by a better quality cable.
The problem with such a setup is very likely the magnetic compass: my internal compass turns red the moment the quad takes off.
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excellent. just the information I was looking for. Thank you very much cato