Radiolink F405 Flight Controller

Overview:
The RadioLink F405 Flight Controller is a compact and capable 30.5×30.5 mm control board designed for multirotors, fixed-wing aircraft, helicopters and a wide range of other RC platforms that benefit from precise flight control, telemetry and video integration. At its heart is a powerful STM32F405RGT6 processor paired with a high-performance IMU and integrated barometer, delivering smooth stabilisation and support for popular open-source firmware options including Betaflight, INAV and ArduPilot. Built-in analogue on-screen display (OSD) and extensive I/O make this controller a flexible foundation for custom drones and DIY projects.

This controller is well suited to enthusiasts who want a single board that combines flight management, telemetry and video support in a compact footprint, with broad connectivity for peripherals such as receivers, cameras, GPS and LED systems.

Features:
- Compatible 'plug n play' interface with several brands of VTX, including Caddx and DJI.
- Powerful 32-bit STM32F405RGT6 processor provides rapid processing and responsive control.
- Integrated AT7456E OSD module overlays flight telemetry directly onto video feeds.
- Large onboard 128MB blackbox memory enables detailed flight log recording and tuning analysis.
- Support for multiple mainstream open-source firmware, including Betaflight, INAV and ArduPilot for flexibility across varied platforms and flight styles.
- Plug-and-play support for both analogue and HD digital video transmission systems simplifies integration with FPV gear.
- Multiple UART ports (×5) offer extensive connectivity for receivers, telemetry radios, GPS units and peripherals.
- PWM and modern ESC protocol support (PWM, bidirectional DShot, OneShot) expands compatibility with varied ESC setups.
- Dedicated pads for LED strips, buzzer and RSSI output support custom builds and status indicators.
- I2C interface allows the connection of additional sensors or peripherals requiring two-wire communication.

Specification:
- Form factor: 30.5×30.5mm mounting pattern
- Weight: ~9.5g
- Processor: STM32F405RGT6 32-bit @ 168MHz
- Gyroscope: ICM42688 6-axis IMU
- Barometer: SPL06 for altitude and barometric data
- Blackbox: 128MB integrated flight log storage
- OSD: Integrated AT7456E on-screen display chip
- Channel outputs: M1–M6 (six motor outputs)
- UART ports: Five hardware UART interfaces
- Input signal: SBUS, CRSF (serial receiver support)
- USB: Type-C port for configuration and firmware
- ESC protocols: PWM, bidirectional DShot, OneShot
- Video support: Plug-and-play for analogue and HD digital video systems
- Power supply: 2S–6S LiPo input voltage range
- BEC outputs: 3.3V/300mA, 5V/3A, 9V/3A; configurable 9V via USER1 pad
- I2C: Supported for additional sensors
- Operating temperature: -30°C to +85°C

Included:
- 1x Radiolink F405 Flight Controller
- Accessories