The SpeedyBee F405 AIO V2 40A Bluejay is a compact all-in-one flight controller built for 3-6S FPV drone builds. It combines an STM32F405 processor with a 40A Bluejay ESC, ICM-42688P gyro, and a protective CNC aluminium case on a 25.5×25.5mm board — making it one of the most capable AIO flight controllers available for freestyle, cinewhoop, and long-range flying. Browse our full AIO flight controller range to compare options.
Why choose the SpeedyBee F405 AIO V2?
Unlike traditional stacks that require separate FC and ESC boards, the SpeedyBee F405 AIO V2 integrates everything into a single lightweight unit — reducing wiring complexity, build weight, and installation time. The V2 upgrades the gyro to the ICM-42688P, improves BEC outputs with a dedicated 9V rail for digital VTX setups, and adds a CNC aluminium case for crash protection and better heat dissipation.
Whether you are building a 5-inch freestyle quad, a 3.5-inch cinewhoop, or a lightweight long-range cruiser, this AIO handles it cleanly from a single board.
Key features
40A Bluejay ESC
The integrated ESC delivers 40A continuous and 45A burst current, running Bluejay firmware at 48kHz. It supports DSHOT600 and DSHOT300 protocols across 3-6S LiPo batteries, providing smooth, responsive motor control for both racing and freestyle flying.
ICM-42688P gyro
One of the best gyros available for FPV, the ICM-42688P offers low noise, strong vibration rejection, and excellent RPM filtering compatibility — resulting in cleaner Betaflight logs and tighter flight feel compared to older MPU-series chips.
Bluetooth wireless tuning
Built-in Bluetooth BLE 2.0 connects to the SpeedyBee App for wireless Betaflight configuration, PID tuning, and firmware updates — no laptop or cables needed at the field.
DJI digital FPV — direct plug-in
The 6-pin DJI Sky Port connector supports DJI O3, RunCam Link, and Caddx Vista with no rewiring required. Pair it with components from our FPV VTX collection for a complete digital build. Full wiring diagrams are available in the Betaflight documentation.
CNC aluminium case
The CNC case improves heat dissipation from the ESC, protects onboard components during crashes, and adds structural rigidity — without significantly increasing weight. This listing is for the 40A CNC Case version only.
Betaflight and INAV compatible
Ships ready for Betaflight using the SPEEDYBEE F405AIO firmware target. INAV is fully supported for GPS-assisted long-range builds.
Full specifications
| Specification | Detail |
|---|---|
| MCU | STM32F405 |
| Gyro | ICM-42688P |
| ESC current | 40A continuous / 45A burst (10s) |
| Battery input | 3-6S LiPo |
| ESC firmware | Bluejay JH-40 48kHz |
| ESC protocol | DSHOT600 / DSHOT300 |
| BEC output | 5V/3A + 9V/2A |
| UARTs | 4 full-function + SBUS |
| Blackbox flash | 8MB |
| Barometer | SPA06-003 |
| USB | Type-C |
| Bluetooth | BLE 2.0 |
| DJI connector | 6-pin direct plug-in |
| LED support | WS2812 |
| Firmware | Betaflight (default), INAV |
| Mounting | 25.5×25.5mm, M2 |
| Dimensions (with case) | 36.5 x 36.5 x 7.0mm |
| Weight | approx. 13.6g |
What’s in the box
- 1x SpeedyBee F405 AIO V2 40A Bluejay with CNC aluminium case
- 1x XT30 power cable (7cm)
- 1x DJI Air Unit 6-pin connection cable (80mm)
- 1x Type-C extension module + 4-pin cable (80mm)
- 1x External BEC module + 6-pin cable (30mm)
- 1x Power expansion board
- 1x 35V 470uF electrolytic capacitor
- 2x Capacitor heat shrink tubes
- 4x M2 silicone damping sleeves
- 1x Practice soldering board
- 1x Hardware set
- 1x User manual
Build compatibility
The SpeedyBee F405 AIO V2 fits most 3.5″ to 5″ frames using standard 25.5×25.5mm M2 mounting. With the CNC case fitted, the board measures 36.5×36.5mm — check your frame has sufficient internal clearance before ordering. Not recommended for sub-3.5″ builds without first confirming fitment.
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