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RFFC-F405 FPV Drone Flight Controller | STM32F405 MCU | ICM42688P Gyro | Built-in ELRS & DJI Air Unit Port | For FPV Racing Freestyle Drones
RFFC-F405 RC flight controller features an STM32F405 MCU and high-precision ICM42688P gyroscope, with integrated ports for ESC, dual cameras, GPS, DJI air unit, ELRS receiver, servos and VTX. Compatible with mainstream open-source firmware, it fits FPV drones, fixed-wing aircraft and more, with easy assembly and stable flight performance.
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Product Overview
The RFFC-F405 is a high-performance flight controller (FC) designed for FPV drones and RC aircraft. It adopts the industry-standard STM32F405 main control chip paired with a high-precision ICM42688P 6-axis gyroscope accelerometer, delivering sufficient computing power, accurate attitude calculation, and stable, responsive flight performance.
This FC integrates a full set of peripheral interfaces, supporting direct connection to ESCs, dual cameras, GPS modules, LED strips, DJI digital air units, servos, ELRS receivers, and analog VTX — no extra adapter board required, greatly simplifying wiring and assembly. Compatible with mainstream open-source flight controller firmware including Betaflight, INAV and Emuflight, it fits a wide range of aircraft such as racing drones, freestyle drones and long-range fixed-wing planes, making it a reliable choice for RC hobbyists for building and upgrading their crafts.
Core Technical Specifications
Basic Hardware Configuration
| Specification | Details |
|---|---|
| Model | RFFC-F405 |
| Product Type | RC Aircraft Flight Controller (FC) |
| Main Control Chip | STM32F405 High-Performance MCU |
| Gyroscope Chip | ICM42688P 6-Axis Gyroscope & Accelerometer |
| Supported Firmware | Betaflight / INAV / Emuflight and other mainstream open-source FC firmware |
Built-in Interface Resources
| Interface Type | Quantity | Function Description |
|---|---|---|
| ESC Port | 1 channel | Outputs motor control signals, directly connects to ESC |
| CAM Port | 2 channels | Supports dual camera connection and video switching |
| GPS Port | 1 channel | Connects GPS module for positioning, return-to-home and other functions |
| LED Port | 1 channel | Connects LED strips for status indication and light effects |
| DJI-O Port | 1 channel | Directly connects to DJI digital air unit for FC data transmission |
| Servo Port | 2 channels | Outputs servo control signals for fixed-wing and VTOL aircraft |
| ELRS Receiver Port | 1 channel | Dedicated port for ELRS protocol receivers, simplifies wiring |
| VTX Port | 1 channel | Connects analog video transmitter, supports channel and power control |
Core Features & Benefits
1. Premium Hardware Combination for Accurate & Stable Flight
Powered by the STM32F405 high-performance MCU, it delivers sufficient computing power to run mainstream open-source firmware smoothly and support complex filtering algorithms and function expansion. The ICM42688P high-precision 6-axis gyroscope features low noise and strong vibration resistance. Combined with optimized attitude calculation algorithms, it greatly improves flight stability and delivers precise, responsive control feel for racing, freestyle and long-range flight scenarios.
2. All-In-One Integrated Interfaces for Hassle-Free Assembly
The FC integrates all necessary peripheral interfaces for RC aircraft assembly, eliminating the need for extra adapter boards. The dedicated ELRS receiver port supports plug-and-play without soldering; the DJI-O port is fully compatible with DJI digital air units; the dual camera ports support video switching; the 2 servo ports fit fixed-wing aircraft. With additional standard ports for GPS, LED, VTX and ESC, it greatly simplifies wiring and reduces assembly difficulty for beginners.
3. Wide Open-Source Firmware Compatibility for Flexible Gameplay
It is fully compatible with mainstream open-source flight controller firmware including Betaflight, INAV and Emuflight, supporting custom parameter tuning and function plugin expansion. Pilots can flexibly configure settings according to their needs: tuned for FPV racing and freestyle drones, or configured for fixed-wing aircraft with GPS positioning, return-to-home and cruise control, meeting diverse demands of different pilots.
4. Standardized Layout for Wide Aircraft Compatibility
It adopts industry-standard mounting holes and interface layout, perfectly fitting most 5-inch FPV drones, small and medium-sized fixed-wing planes, VTOL aircraft and other mainstream airframes. The optimized interface arrangement enables clean and orderly wiring, effectively reduces signal interference caused by messy cables, and further improves overall operation stability.
Applicable Scenarios
- Assembly and upgrade of 5-inch FPV racing drones and freestyle drones
- Flight control system building for small and medium-sized fixed-wing and long-range aircraft
- DIY RC aircraft and teaching experimental flight control platform development
- FPV drone builds with digital / hybrid video transmission solutions
Package Contents
- 1 × RFFC-F405 Flight Controller Main Unit
- 1 × Matching Cable Set
- 1 × Product User Manual
| SKU | IUAV-14126 |
|---|
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