1. Introduction and Overview
This manual provides detailed instructions for the Radiolink F405 Flight Controller and the Flycolor 55A 4-in-1 Electronic Speed Controller (ESC) Stack. This high-performance stack is designed for racing drones, quadcopters, and other RC models, offering advanced control and robust stability.
Key Features
- Multiple Open-source Firmware Support: Compatible with ArduPilot, Betaflight, and INAV for versatile flight control.
- High-End Configuration: Features STM32F405RGT6 main control chip (168MHz), BMI270 high-precision gyroscope, and SPL06-001 high-precision barometer.
- High Storage Capacity: 128MB blackbox for comprehensive flight data recording and fault tracing.
- Multiple Signal Protocols: Supports SPEKTRUM, SBUS, TBS Crossfire (Black Sheep), and ExpressLRS receivers.
- All-in-One Plug-and-Play Interfaces: Direct 6-pin connection for DJI O3/O4, and seamless compatibility with GPS, OSD, and various video transmitters.
- Intelligent Tuning: Parameters adjustable via Radiolink, Mission Planner, Betaflight, and INAV Configurator with real-time OSD monitoring.
- Mainstream Throttle Signals: Supports bidirectional DShot, OneShot, and PWM signals, including ESC telemetry feedback.
- Anti-Interference Capability: 2oz thickened copper PCB, extensive capacitor filtering, triple-layer protection (ferrite beads, TVS diodes, high-voltage-tolerant DC chips) to minimize EMI and motor back-EMF surges.
- Unique Automation Software Testing System: Each unit undergoes 20 rigorous tests for high-temperature resistance, vibration tolerance, signal stability, and port functionality.
Product Overview Video
This video provides a general overview of the Radiolink F405 Flight Controller and its features.
2. Specifications
Radiolink F405 Flight Controller Specifications
| Attribute | Value |
|---|---|
| Brand Name | RadioLink |
| Model Number | F405 |
| Processor | STM32F405RGT6 |
| Gyro | BMI270 |
| Barometer | SPL06 |
| OSD Module | AT7456E |
| Input Voltage | 2S-6S |
| BEC | 3.3V/300mA; 5V/3A; 9V/3A |
| 9V BEC Switch | Support (USER1) |
| UART Port | 5 |
| USB Port | 1 (Type-C) |
| RC In Signal Input | SBUS/CRSF |
| Channel Output | M1 - M6 |
| Blackbox | 128MB, record and store flight logs |
| Battery Scale | 110 |
| ESC Features | Support (UART3 RX) |
| LED Strip | Support, have LED strip soldering pads |
| Buzzer | Support, have a buzzer soldering pads |
| RSSI Output | Support, have RSSI soldering pads |
| Size | 30.5*30.5mm |
| Weight | 9.5g |
| Firmware Type | Ardupilot, Betaflight, INAV |
| Firmware Name | RADIOLINKF405 |
| Adaptable Models | 2-6 axis multi-rotors, Airplanes, Helicopters, flying wings, Cars, Boats, Robots, bait boats, Lawn mowers, etc. |
| Certification | CE, FCC, RoHS, WEEE |
Flycolor 55A 4-in-1 ESC Specifications
| Attribute | Value |
|---|---|
| MCU | EFM8BB21 |
| Continuous Current | 45A - 55A |
| Input Voltage | 3-6S Lipo |
| Operating Frequency | 50MHz |
| ESC Firmware | A-H-30 |
| Configurator | Bluejay Configurator or BLHeliSuite |
| Weight | 0.56 oz (approx. 15.8g) |
| Mounting Hole | 1.2*1.2 in, M3 (approx. 30.5*30.5mm) |
Product Comparison Table
3. Setup and Installation
Component Overview
Wiring Diagrams and Connections
The F405 Flight Controller offers various interfaces for connecting peripherals. Refer to the diagrams below for proper wiring.
Plug-and-Play Video Transmission Connections
The F405 supports direct 6-pin plug-and-play connections for DJI O3/O4 and other video transmission systems.
Receiver Connections
The flight controller supports various receiver types. Ensure correct wiring for your chosen receiver.
Solder Pad Interfaces
The F405 Flight Controller provides dedicated solder pads for additional functionality and customization. These include pads for Buzzer, LED Strip, RSSI, and more. Refer to the detailed pinout diagram for specific locations and functions.
4. Operation
Firmware and Software
The Radiolink F405 Flight Controller supports multiple open-source firmware options, including ArduPilot, Betaflight, and INAV. You can flash the specified firmware before shipment or choose to flash it yourself.
Note: If no specific firmware is requested at the time of order, the default factory firmware will be flashed.
Intelligent Tuning and OSD Monitoring
Parameters can be adjusted using various configurator tools such as Radiolink's own software, Mission Planner, Betaflight Configurator, and INAV Configurator. Critical flight parameters like voltage and attitude can be monitored in real-time through the On-Screen Display (OSD) interface.
Flight Data Recording (Blackbox)
The integrated 128MB blackbox allows for comprehensive recording of flight data, which is invaluable for analyzing flight performance and diagnosing issues.
5. Packing List
F405 Flight Controller Only Package
- F405 Flight Controller x 1
- ESC Connect Cable x 1
- Camera Connect Cable x 1
- Analog Video Transmission Connect Cable x 1
- GPS Connect Cable x 1
- R8SM Receiver Connect Cable x 1
F405 Flight Controller & 4-in-1 ESC Stack Package
- F405 Flight Controller x 1
- Flycolor 55A ESC x 1
- ESC Connect Cable x 1
- Camera Connect Cable x 1
- Analog Video Transmission Connect Cable x 1
- GPS Connect Cable x 1
- R8SM Receiver Connect Cable x 1
Flycolor 55A 4-in-1 ESC Only Package
- ESC x 1
- XT60 Power Connector x 1
- FC/ESC Connect Cable x 1
- Low ESR Capacitor x 1
- O-Ring x 5
- Silicone Vibration Absorber x 1
6. Troubleshooting
For common issues and advanced troubleshooting, it is recommended to consult the official documentation for the specific firmware you are using (ArduPilot, Betaflight, or INAV). The 128MB blackbox on the F405 Flight Controller can be used to record and analyze flight data, which is a crucial tool for diagnosing flight anomalies and system errors.
For more detailed information and support, please refer to the official Radiolink website: https://www.radiolink.com/f405
7. Warranty and Support
Radiolink products are designed for reliability and performance. For any technical assistance, warranty claims, or product inquiries, please contact the Radiolink Official Store or visit their official website.
- Free Returns: Enjoy free returns within 90 days of purchase.
- Fast Delivery Guarantee: Benefit from fast delivery with potential compensation ($1.00 coupon) if delivery is delayed. Refunds are also available if the package is lost or items are damaged during transit, or if delivery is not made within 60 days.
- Security & Privacy: Your personal details are protected and not shared with third parties without consent.
For further details on service commitments, please refer to the seller's policies on the purchase platform.
