Category: Blackbox
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Air Crash Investigation: gone in 6 seconds
“What goes up, must come down”. I had an opportunity to face this old truth 2 weeks ago, when my 600mm quadcopter felt from 30 meters straight into water. It was supposed to be a simple flight: take off fly few hundred meters away with GPS assist engage Return To Home and land Dozens of…
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Detecting Cleanflight PID tuning issues with Blackbox: gyro noise
After a short brake, let’s return to Blackbox series with new entry: “How much gyro noise is too much?”. Almost all PID tuning tutorials states: reduce vibrations that affects gyroscope and accelerometer readouts. Yes, this true: any vibrations that appear during flight affects gyroscope and accelerometer readouts are bad and should be kept as low…
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Detecting Cleanflight PID tuning issues with Blackbox: not enough P
This is third part of Cleanflight PID tuning tutorial with Blackbox. Previously I’ve showed examples of: Excess P gain, Excess D gain, This time it is time for something slightly different: not enough P gain. Usually this problem can be identified without any log analysis. Symptoms are quite visible: multirotor is sluggish during maneuvers, has…
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Detecting Cleanflight PID tuning issues with Blackbox: excess D gain
Welcome to second part of Blackbox PID tuning tutorial. Last time I have showed few examples how excess P gain might look like. Today I will write few words about next common PID tuning problem: too much D. Derivative (future) part of PID controller is very useful, since it allows to smoothen control loop output…
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Detecting Cleanflight PID tuning issues with Blackbox: excess P gain
Almost all quadcopter PID tuning tutorials can be summarized into one sentence: “Increase P until you see oscillations, then lower it”. Plus some thoughts about I and very vague advices about D and that is all. When I got into the hobby, I’ve read all of those tutorials. And I did know more about PID…