⚡ Instant Response
Parallel architecture, independent tasks—from fingertip to propeller, microsecond delivery, seamlessly
Fidelity X
Redefining the Flight Experience
Fidelity X is more than just flight controller firmware.
It’s a new answer to the question: “What should flight feel like?”—not optimization, but built from scratch. Every line of code serves a single purpose: to create an unprecedented intimate connection between you and your aircraft.
Performance by Architecture
🔧 Built from Scratch
Every line of code, born for flight—no porting, no compromise, only purity
🛡️ Progressive Protection
Multi-stage safety mechanisms, from signal recovery to safe landing, every stage has a plan
🎯 Precision Filtering
Carefully tuned signal processing chain, where sharp response and silky feel are no longer a trade-off
Experience from Details
🔬 Physics Modeling
Based on rigid body dynamics, every response of the aircraft behaves exactly as it should
🧭 One-Click Calibration
Sensor self-calibration, just rest for a moment—let the firmware handle the complex tasks
🎨 Intuitive Configuration
Clean interface, clear logic—understand at a glance, master immediately
📹 Lossless Recording
Newly developed lossless blackbox logging, your every action precisely recorded and fully restored
Fly Your Way
Three rate curves, fully mixable:
- Betaflight Rate — The feel you know, seamless migration
- Actual Rate — Intuitive setup, what you set is what you get
- FlightOne Rate — Natural choice for FalcoX pilots
Yaw, Pitch, and Roll can each use different curves. Your flight style, defined by you.
Complete Ecosystem
| Capability | Support |
|---|---|
| OSD Display | MSP protocol, compatible with mainstream VTX |
| Flight Recording | Onboard Blackbox with deep analysis |
| RC Protocols | CRSF · SBUS |
| Motor Protocol | Bidirectional DShot600 |
Compatible Sensors
| Sensor | Status |
|---|---|
| BMI270 | ✅ Full Support |
| QMI8658C | ✅ Full Support |
| ICM-42688-P | ⚠️ Limited Support |
Current Version
v0.1.3 View Changelog
Begin Your Journey
🚀 Getting Started From download to first flight, in just a few steps
⚙️ Configuration Guide Unlock the full potential of Fidelity X
🔌 Supported Hardware Find the right flight controller for you