Product overview
The RadioLink F405 is an all-in-one flight controller for racing drones, multirotor UAVs, and other aircraft. Its electronics combine a 168MHz STM32F405RGT6 processor, an ICM42688 gyroscope with a dedicated LDO supply, an SPL06-001 barometer, and 128MB blackbox storage for flight recording. Dual gyroscope pads accommodate an optional MPU6500 replacement. Firmware support covers ArduPilot, Betaflight, and INAV. Currently, only Radiolink firmware can be loaded through Betaflight Configurator while the Betaflight team reviews the firmware, which limits the available loading configuration.
The controller occupies a 30.5×30.5mm footprint and provides six output channels, supporting integration into 2-6-axis multirotors, fixed-wing aircraft, helicopters, and flying wings. Sockets and solder pads provide peripheral connections and expansion within that footprint. Digital video uses a six-pin connection, including direct DJI O3/O4 support; analog video uses a four-pin VOUT socket. A built-in OSD displays voltage and attitude. Peripheral supplies provide 3.3V/300mA, 5V/3A, and 9V/3A, with a programmable 9V BEC switch for video transmission power control.
The supplied package contains one F405 controller, an AM32-70A ESC connection cable, a longer ESC cable, and individual cables for GPS, an R8SM receiver, analog video transmission, and a camera, plus a package box. This configuration is a controller-and-cable package for vehicle integration. Supported throttle signals include bidirectional DShot, DShot, OneShot, and PWM, with ESC telemetry feedback. The board incorporates 2oz PCB copper, capacitor filtering, ferrite beads, TVS diodes, and high-voltage-tolerant DC chips for electrical filtering and surge suppression. Its operating temperature range is -30°C to 85°C.
Specifications
| Specification | Value & conditions |
|---|---|
| Product type and purpose | RadioLink F405 all-in-one flight controller for racing drones, aircraft, and multirotor UAVs. |
| Supported firmware | ArduPilot, Betaflight, and INAV. |
| Current firmware loading limitation | Only Radiolink firmware can currently be loaded through Betaflight Configurator while the Betaflight team reviews the firmware.When loading firmware through Betaflight Configurator. |
| Processor | STM32F405RGT6 processor with 168MHz core frequency. |
| Gyroscope | ICM42688 gyroscope with dedicated LDO power supply. |
| Alternative gyroscope provision | Dual gyroscope pads reserved for optional MPU6500 replacement.Optional MPU6500 replacement. |
| Barometer | SPL06-001 barometer. |
| Blackbox storage | 128MB blackbox for flight data recording and fault tracing. |
| Isolated power circuit | 4.5V/5V isolated circuit design for protection against current overload during parameter adjustments.During parameter adjustments. |
| 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. |
| Video transmission management | Remote switching of video transmission power and adjustment of transmission power and frequency.Power switching via remote controller; transmission power and frequency adjustment through remote controller and FPV goggles. |
| PCB copper and current capacity | 2oz copper PCB with a 50% increase in current capacity and reduced electromagnetic interference. |
| Filtering and surge protection | Capacitor filtering and motor back-EMF surge suppression using ferrite beads, TVS diodes, and high-voltage-tolerant DC chips. |
| Footprint and output channels | 30.5×30.5mm footprint; 6 output channels. |
| Supported vehicle architectures | 2-6-axis multirotors, fixed-wing aircraft, helicopters, flying wings, cars, boats, robots, lawn mowers, and bait boats. |
| Digital video connector | 6-pin plug-and-play socket.For DJI high-definition digital video transmission. |
| Analog video connector | 4-pin VOUT socket.For analog video transmission. |
| DJI O3/O4 connection | Direct 6-pin plug-and-play connection.For DJI O3/O4. |
| Interface expansion | Socket interfaces and solder pads provide additional interface expansion without changing controller size. |
| OSD | Built-in OSD module. |
| Parameter adjustment and monitoring | Parameter adjustment through Radiolink and open-source Mission Planner, Betaflight, and INAV Configurator; real-time voltage and attitude monitoring through OSD. |
| Installation layout | Pad and socket layouts for mainstream frame installations, with a 40% improvement in soldering and cable routing efficiency. |
| Throttle signals and ESC telemetry | Bidirectional DShot, DShot, OneShot, PWM, and ESC telemetry feedback. |
| Receiver support | SPEKTRUM, SBUS, TBS Crossfire, and ExpressLRS receivers. |
| Operating temperature range | -30°C to 85°C. |
| Production test coverage | 20 tests, including high-temperature resistance, vibration tolerance, signal stability, and port functionality.Each flight control unit. |
| Included equipment | 1 F405 flight controller; 1 ESC connection cable for AM32-70A; 1 longer ESC connection cable; 1 GPS connection cable; 1 R8SM receiver connection cable; 1 analog video transmission connection cable; 1 camera connection cable; 1 package box.Supplied F405 package. |
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