SpeedyBee F405 V2 H2 CNC 40A AIO | Bluejay | 25.5×25.5 | 3-6S | Flight Controller

The SpeedyBee F405 AIO V2 40A combines a powerful STM32F405 flight controller and four-in-one Bluejay ESC on a single compact board. This 40A version includes a CNC-machined protective case for improved heat dissipation and physical protection.

Its 25.5 × 25.5mm mounting pattern makes it suitable for space-limited FPV builds where a separate flight controller and ESC stack would be difficult to accommodate. SpeedyBee recommends it for 3.5-inch to 5-inch cinewhoops, long-range drones and lightweight freestyle builds.

Built-in Bluetooth allows Betaflight settings to be changed through the SpeedyBee app. Wireless firmware updating is also supported, reducing the need to connect the flight controller directly to a computer for routine configuration.

Product Highlights

• STM32F405 flight controller processor
• Integrated 40A four-in-one ESC
• Bluejay JH-40 ESC firmware
• 3S to 6S LiPo compatibility
• ICM-42688P gyroscope and accelerometer
• Built-in Bluetooth wireless configuration
• Wireless flight controller firmware updating
• Four full-function UARTs
• DJI Air Unit six-pin connector and solder pads
• Compatible with DJI O3 and O4 Air Units
• Dedicated 5V and 9V BEC outputs
• 8MB onboard Blackbox storage
• Built-in barometer
• Analogue Betaflight OSD support
• USB Type-C connection
• CNC protective and cooling case

Product Information

The F405 AIO V2 provides four full UARTs for connecting equipment including an ExpressLRS receiver, GPS module, digital or analogue video system and other peripherals. A dedicated SBUS connection is also provided for compatible receivers.

DJI Air Units can be connected using the included six-pin cable or directly to the solder pads. The board provides a regulated 9V output rated at 1.5A for compatible digital video systems.

The integrated 40A ESC runs Bluejay firmware and supports 3S to 6S LiPo batteries. A 470µF low-ESR capacitor is included and should be installed across the main battery pads to help protect the electronics against voltage spikes and electrical noise.

The board also includes LED strip, buzzer and I2C connections, along with an onboard barometer and 8MB of Blackbox flash memory for flight-log recording and tuning.

Flight Controller Specifications

• Flight controller MCU: STM32F405
• Gyroscope: ICM-42688P
• Barometer: SPA06-003
• Firmware: Betaflight
• Betaflight target: SPEEDYBEEF405AIOV2
• Blackbox storage: 8MB onboard flash
• UARTs: Four full-function UARTs
• UART allocation: UART3, UART4, UART5 and UART6
• Receiver connections: ELRS, CRSF and SBUS
• OSD: Betaflight analogue OSD supported
• I2C connection: Supported
• LED strip connection: Supported
• Buzzer connection: Supported
• BOOT button: Supported
• Betaflight camera-control pad: Supported
• USB connection: USB Type-C
• Wireless connection: Bluetooth BLE
• Wireless firmware updating: Supported

ESC and Power Specifications

• ESC type: Integrated four-in-one ESC
• Continuous current rating: 40A per motor channel
• ESC firmware: Bluejay JH-40
• Factory PWM frequency: 48kHz
• Input voltage: 3S to 6S LiPo
• Motor outputs: Four
• 5V BEC output: 1.5A
• 9V BEC output: 1.5A
• 4V5 output: 1A
• Main battery connection: Solder pads
• Recommended capacitor: Included 35V 470µF low-ESR capacitor

DJI and Video Compatibility

• Six-pin direct DJI Air Unit socket
• Alternative DJI solder-pad connection
• Compatible with DJI O3 Air Unit
• Compatible with DJI O4 Air Unit
• Analogue camera and VTX connections
• Regulated 9V output for compatible video systems

Dimensions and Weight

• Mounting pattern: 25.5 × 25.5mm
• Mounting-hole diameter: 2mm
• Board dimensions with CNC case: 33 × 33 × 8mm
• Maximum corner-to-corner footprint: Approximately 36.5 × 36.5mm
• Weight with CNC case: 12.8g

Fitment notice: The mounting pattern is 25.5 × 25.5mm, but the board is wider than many traditional whoop-style AIO flight controllers. Check that the frame has enough clearance for the approximately 36.5mm corner-to-corner footprint before ordering.

Package Includes

• 1 × SpeedyBee F405 AIO V2 40A with CNC case
• 1 × Soldering practice board
• 1 × SH1.0 six-pin DJI Air Unit cable
• 1 × XT30 power cable
• 1 × 35V 470µF capacitor
• 1 × External LED strip BEC
• 1 × USB Type-C extension module
• 1 × Type-C extension cable
• 1 × Power expansion board
• 1 × LED strip BEC connection cable
• Silicone dampers, mounting screws and nylon nuts
• Heat-shrink tubing
• Quick-start guide
  SpeedyBee F405 AIO Manual 

 

More Information