GPS Rescue is Betaflight's return-to-home failsafe. When triggered (link loss, low battery, or manual activation), the quad climbs to a configured altitude and flies back to where it armed. Prerequisites GPS module connected and assigned to a UART (enable GPS in the Ports tab for that UART) 6+ satellite lock before …

Betaflight and INAV are both open-source FC firmware. They share some code history but have diverged into distinct tools with different strengths. The wrong choice for a GPS build results in either a frustrating experience or wasted capability. Core Philosophy flowchart LR BF[Betaflight] -->|Optimised for| M1[Manual …

A clean OSD gives you essential flight data without cluttering the image for recording review. The goal: show only what you'll actually need after landing. Analog OSD (MAX7456) The MAX7456 chip on most FC stacks handles OSD overlay on analog video. Minimal useful set for recording investigation: Element Reason Battery …

A PID controller is the core of what makes a flight controller work. Understanding what each term does — and what breaking it looks like — is prerequisite to any meaningful tuning. The Control Loop flowchart LR P([Pilot stick<br/>setpoint]) --> E{Error<br/>calculation} G([Gyro<br/>actual rate]) --> E E --> PT[P term] E …

A systematic PID tuning protocol based on the Joshua Bardwell / Brian White wobble-test methodology — rewritten to run entirely on free tools: Betaflight Blackbox Explorer, Betaflight Configurator, and Rylo. No PID Toolbox, no MATLAB, no paid subscriptions. This is the practical field protocol. If you want the math …

A methodical pre-flight check prevents the most common crash causes: wrong motor direction, loose props, dead receiver link, and arming flags. Five minutes before every session, not just the first flight of a build. Full Checklist 1 — Battery and Power Cell voltages balanced (within 0.05V of each other under no load) …

533, 633, 733 are community shorthand for three popular freestyle rate profiles, and the number is the maximum rotation rate in °/s — 733 tops out around 730 °/s, 533 around 530 °/s. They're all built the same way in the legacy Betaflight system: a fixed Super Rate 0.70 with the RC Rate stepped up. This snippet gives …

Switching rate profiles mid-session via a transmitter switch and saving your personal-best stats to the OSD are both useful features — but they interact in a surprising way. Persistent Stats Betaflight can track flight statistics across power cycles and display them on the OSD: Max altitude, max speed, max G-force, max …

Rates are not just a "how fast does it spin" setting. They shape where on the stick control lives — and understanding the curve lets you tune for precision hover, natural cruising, and explosive tricks, all in the same profile. The Rate Curve Moving a gimbal stick from center to full deflection does not produce a …

Getting good PID analysis results requires a specific flight sequence. Freestyle logs are almost useless for tuning — the inputs are too chaotic, axes overlap, and throttle is never constant. This protocol covers the exact movements that generate the clean, separable data needed for step response analysis, spectral …

Map a transmitter lever, wheel, or switch to cycle through VTX power levels in Betaflight. Useful for pit mode on startup, low power for close proximity flying, and full power for long range. How It Works Betaflight reads an AUX channel and maps PWM ranges to VTX power table indices. The VTX must be connected to the FC …