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jaspreeth / ardupilot-mega

Automatically exported from code.google.com/p/ardupilot-mega
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Change default INPUT_VOLTAGE #351

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
Most users are powering APM through the servo rail.  When doing so the Vcc 
value seen by the uP is reported by a user to be 4.58 volts.  

Need to verify this and change default value of INPUT_VOLTAGE accordingly.

Original issue reported on code.google.com by dewei...@gmail.com on 26 May 2011 at 3:33

GoogleCodeExporter commented 8 years ago 
I think this is a report stemming from this forum thread:

http://diydrones.com/forum/topics/need-to-scale-down-measured

On my own set up, measuring Vcc at the magnetometer port gave me 4.46v

Original comment by d...@w1ngz.net on 26 May 2011 at 5:32

GoogleCodeExporter commented 8 years ago 
d...@w1ngz.net - can you verify your voltage at the servo rail.

Original comment by dewei...@gmail.com on 26 May 2011 at 6:25

GoogleCodeExporter commented 8 years ago 
5.06 at the servo rail...

Original comment by d...@w1ngz.net on 27 May 2011 at 12:36

GoogleCodeExporter commented 8 years ago 
Bummer.  I was hoping the voltage drop from the rail would be more consistent.  
I guess I'll have to get some sample data from Jordi.

Original comment by dewei...@gmail.com on 27 May 2011 at 11:05

GoogleCodeExporter commented 8 years ago 
4.86 on mine

Original comment by fueck...@gmail.com on 1 Jun 2011 at 12:56

GoogleCodeExporter commented 8 years ago 
Done - 4.68 based on average measurement of a group of boards.

Original comment by dewei...@gmail.com on 5 Jun 2011 at 3:23