@Taipan wrote:
I have an Omnibus F4 Pro ver3 FC board ArduPlane V3.9.7 that I am setting up on the bench.
To calibrate the current sensor, I connected a 4.2 ohm/40W resistor where the ESC will be powered. At 12 V, this should draw about 2.8A in addition to the quiescent current (~ 0.5A) - a total of 3.3A.
However, the reading that is displayed in Mission Planner fluctuates rapidly between about 3.1A to 3.5A. When I view the battery current in the log file, this is what I see:
which shows that the current reading is very noisy.Is this noise due to sampling errors in the F4 ADC?
Is there any way to reduce or eliminate that noise?
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