Product overview
The RadioLink F405 is a flight-control component for integration into racing drones, multirotors and other supported vehicle types. Its electronics combine a 168MHz STM32F405RGT6 processor, an ICM42688 gyroscope with a dedicated LDO supply, an SPL06-001 barometer and 128MB of blackbox storage. Reserved gyroscope pads allow an optional MPU6500 replacement. The controller supports ArduPilot, Betaflight and INAV, giving integrators firmware choices for different control requirements. Its six output channels accommodate supported configurations that include 2-6-axis multirotors, fixed-wing aircraft, helicopters and flying wings.
A 30.5×30.5mm footprint combines socket connections with soldering pads for peripheral integration. Digital video uses a 6-pin interface with direct DJI O3/O4 connection support, while analog video has a 4-pin VOUT socket. Integrated BEC outputs provide 3.3V/300mA, 5V/3A and 9V/3A for external equipment, and a programmable 9V switch controls video-transmission power. The board also incorporates a built-in OSD, 4.5V/5V circuit isolation, 2oz PCB copper, capacitor filtering and protection components intended to suppress motor back-EMF surges.
The supplied configuration consists of one F405 controller, two ESC connection cables, GPS and R8SM receiver cables, analog video and camera cables, and a package box. This is a controller package for aircraft integration rather than a complete flight platform. Receiver support includes SPEKTRUM, SBUS, TBS Crossfire and ExpressLRS; throttle interfaces include bidirectional DShot, DShot, OneShot and PWM with ESC telemetry feedback. The stated operating range is -30°C to 85°C. A firmware-loading limitation remains: Betaflight Configurator currently loads only Radiolink firmware while Betaflight team review is pending.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type | RadioLink F405 racing-edition flight controller. |
| Firmware compatibility | ArduPilot, Betaflight and INAV. |
| Processor | STM32F405RGT6; 168MHz core frequency. |
| Gyroscope | ICM42688 gyroscope.Dedicated LDO power supply. |
| Alternative gyroscope provision | Dual gyroscope pads reserved for MPU6500 replacement.Optional MPU6500 replacement. |
| Barometer | SPL06-001. |
| Flight-data storage | 128MB blackbox. |
| Power-circuit isolation | 4.5V/5V isolated circuit design. |
| Programmable BEC switch | 9V programmable BEC switch.For video-transmission power control. |
| Integrated multi-channel BEC | 3.3V/300mA, 5V/3A and 9V/3A outputs.For external peripherals including receivers, FPV transmitters, cameras, servos and LED strips. |
| PCB copper | 2oz copper PCB. |
| Electrical protection | Ferrite beads, TVS diodes and high-voltage-tolerant DC chips. |
| Footprint | 30.5×30.5mm. |
| Output channels | 6. |
| Supported vehicle configurations | 2-6-axis multirotors, fixed-wing aircraft, helicopters, flying wings, cars, boats, robots, lawn mowers and bait boats. |
| Digital video interface | 6-pin socket.For DJI high-definition digital image transmission. |
| Analog video interface | 4-pin VOUT socket.For analog image transmission. |
| DJI video-system support | DJI O3/O4.Direct 6-pin connection. |
| Expansion architecture | Socket interfaces and soldering pads support additional connections within the existing controller size. |
| OSD | Built-in OSD module. |
| Displayed operating parameters | Real-time voltage and attitude monitoring.Through the OSD interface. |
| Throttle signals and ESC feedback | Bidirectional DShot, DShot, OneShot and PWM; ESC telemetry feedback. |
| Receiver protocols | SPEKTRUM, SBUS, TBS Crossfire and ExpressLRS. |
| Operating temperature range | -30°C to 85°C. |
| Parameter setup and firmware software | Radiolink Mission Planner, ArduPilot Mission Planner, Betaflight Configurator and INAV Configurator. |
| Betaflight firmware limitation | Only Radiolink firmware can currently be loaded; Betaflight team review is pending.When loading firmware through Betaflight Configurator. |
| Packing list | 1 F405 flight controller; 1 ESC cable for AM32-70A; 1 longer ESC cable; 1 GPS cable; 1 R8SM receiver cable; 1 analog video-transmission cable; 1 camera cable; 1 package box.Supplied package. |
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