How I Built an Automatic PID Tuning Tool for FPV Drones
If you've ever flown FPV drones, you know the pain of PID tuning. Spending hours doing test flights, analyzing blackbox logs, tweaking values, and repeating the whole process until your quad finally feels right.
I've been flying freestyle for about 2 years, and PID tuning was always the part I dreaded most. I'd spend entire weekends staring at PIDtoolbox graphs trying to figure out what to change. Sometimes I'd make things worse instead of better.
## The Problem
Betaflight doesn't have a built-in autotune feature (unlike some other flight controllers). The community has relied on tools like PIDtoolbox to analyze blackbox logs, but you still need to interpret the data and manually adjust PIDs.
For beginners, this is overwhelming. Even experienced pilots often just copy someone else's PIDs and hope for the best.
## The Solution: FPVtune
I built [FPVtune](https://fpvtune.com) to solve this problem. It's a web-based tool that:
1. Takes your Betaflight blackbox log
2. Analyzes the flight data using neural network algorithms
3. Generates optimized PID settings automatically
No more guessing. No more endless test flights. Just upload your log and get tuned PIDs in minutes.
## How It Works
The tool analyzes your blackbox data to understand how your quad responds to stick inputs. It looks at things like:
- Gyro noise patterns
- Motor response times
- Oscillation frequencies
- Prop wash behavior
Then it calculates PID values that should minimize oscillations and improve overall flight feel.
## Try It Out
The tool is available at [fpvtune.com](https://fpvtune.com). It costs $9.90 for a one-time analysis, but if you want to try it first, use this beta code: **FPVTUNE-BETA-2026**
The source code is also available on [GitHub](https://github.com/chugzb/betaflight-pid-autotuning) if you want to check out how it works or contribute.
## Results
I've tested it on several builds - 5" freestyle, 3" cinewhoop, and a tiny whoop. The results have been solid. Prop wash improved noticeably on my freestyle quad, and my cinewhoop feels much smoother now.
Would love to hear from other pilots who try it. What's your experience with PID tuning? Have you tried any auto-tuning solutions before?