PIDoctor

Learn: Betaflight tuning knowledge

Everything PIDoctor knows, in one place: quick answers, plain-language definitions and step-by-step guides for reading your blackbox and fixing your tune.

FAQ

All 24 questions →

Is it free? Filters or PIDs? Why are my motors hot? The most common questions, answered straight.

Guides

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The optimal tuning flightHow to read a Betaflight blackbox logSet up blackbox logging for the best analysisDiagnosing motor & D-term noise — filters, not PIDsHow to fix propwash in BetaflightPID tuning basics with step responseFilter tuning: gyro/dterm lowpass, dynamic notch, RPM filter

Glossary

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PID controller (P/I/D)PropwashD-term noiseMotor noiseDynamic notch filterRPM filterGyro lowpass filterD-term lowpass filterStep responseOvershootRise timeFeedforwardTPA (Throttle PID Attenuation)Phase marginBlackbox debug mode (unfiltered gyro)D_min / D_max (dynamic D)Anti-gravityDynamic idle (dyn_idle)Thrust linearization (thrust_linear)Bidirectional DShot (RPM telemetry)SetpointPIDsumMid-throttle oscillationI-term relaxRC smoothingBode plotThrottle boost