Name: SpeedyBee F405 AIO 40A Bluejay 25.5x25.5 3-6S Flight Controller - Flying Tech
Brand: Speedybee
SKU: FC-SB-F4-40A-AIO
Price: 47.90 GBP
Availability: InStock

Description

The SpeedyBee F405 AIO brings innovation and value to the forefront, combining a flight controller and 40A 4-in-1 ESC into a single compact board. Measuring 33x33mm with a 25.5×25.5mm mounting pattern, this all-in-one design simplifies wiring, saves space, and reduces weight, making it ideal for 3-4″ drones and Cinewhoops. It’s also well-suited for lightweight 5-inch builds, with compatibility for 3-6S input and a robust ESC pre-flashed with BlueJay firmware.

The board features a striking heatsink that enhances cooling while giving it a premium appearance. Beneath the surface, it’s powered by the dependable STM32F405 processor and ICM42688P gyro, ensuring precise and reliable flight control. Additional onboard features include an OSD for real-time flight data in your goggles, a barometer for altitude measurement, and 8MB of Blackbox memory for tuning and analysis.

With four full UARTs, you can connect peripherals such as GPS, ExpressLRS/Crossfire receivers, VTX, and more. There’s also an I2C connection, which is required for connecting an external compasses—ideal for iNav users or those looking to add more advanced navigation features.

Dual BECs (5V and external 9V) provide flexibility for powering peripherals like VTXs, LEDs, and cameras.

While the FC includes an onboard USB-C port, SpeedyBee also provides a USB-C extension board for added convenience. This allows you to position an external USB port in a more accessible spot on your frame, making it especially practical for enclosed builds like Cinewhoops. Alternatively, you can skip using the USB entirely. Just like SpeedyBee’s other flight controllers, bluetooth integration allows wireless configuration using the SpeedyBee app, making firmware updates and tuning hassle-free without the need for a laptop.

Whether you’re building a freestyle quad, a Cinewhoop, or a GPS drone, the SpeedyBee F405 AIO strikes a perfect balance of performance, reliability, and user-friendliness—all at an accessible price. To top it off, SpeedyBee includes a soldering practice board with the controller. What’s not to like?

Connections & Soldering Guide – HERE

Specification

MCU: STM32F405
Gyro: ICM-42688P
USB Port Type: Type-C
Barometer: SPA06-003
OSD: Supported
Bluetooth BLE: Supported, Bluetooth speed enhancement – 2.0
Wireless Flight Controller Firmware Update: Supported (no need to press physical BOOT button)
Wireless Download & BlackBox Analysis: Not supported
DJI Air Unit Connection Method: Supports both 6-pin direct insertion and soldering
6-pin DJI Sky Port Direct Insertion: Supported, can directly connect to DJI O3/RunCam Link/Caddx Vista without changing wire order
Flash (for BlackBox): 8MB
Betaflight CC Pads (Camera Parameter Adjustment): Supported
Input Voltage: 3S-6S LiPo battery
4V5 Output: Two 4V5 outputs; total current 1A
5V BEC Output: Three 5V outputs; total current 2A; shared with 4V5
9V BEC Output: None (comes with an external BEC module, can switch between 5V and 9V); total current output 2A
MOTOR: M1-M4
UART: 4 full-function serial ports (UART3, UART4, UART5, UART6 + SBUS[R2])
ESC Telemetry: None
I2C: Supported
LED Pads: Supported, used to control WS2812 LED lights
Buzzer Pads: Supported, BZ+ and BZ- pads
BOOT Button: Supported, press and hold the BOOT button while powering on to enter DFU mode for firmware recovery
RSSI Pads: None
SmartPort: Not supported
Supported Flight Controller Firmware: BetaFlight (Default), INAV
Firmware Target Name: SPEEDYBEE F405AIO
Mounting: 25.5 x 25.5mm, 2mm hole diameter
Dimensions: 33.0mm (length) x 33.0mm (width) x 8mm (height)
Weight: 13.6g (including CNC)

ESC

Input Voltage: 3-6S LiPo battery
Continuous Current: 40A
Burst Current: 45A (10s)
ESC Protocol: Supports DSHOT600/300; other protocols may cause severe errors, please use with caution.
Output Voltage: VBAT battery voltage (used to power the flight controller)
Current Sensor: Supported (Scale = 254, Offset = 0)
Firmware: Bluejay JH-40 48kHz

Included:

1x AIO board
1x Set of softmounts
1x Set of screws
1x Set of cables
1x XT30 with cable
1x Capacitor
1x External BEC
1x External USB-C connector
1x Power expansion board
1x Soldering practice board

Downloads

Firmware

Download File

Manual

Download File

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Shipping

SHIPPING & DELIVERY

We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the size/weight and shipment location. We process orders Monday to Friday and pride ourselves on our quick turnaround of orders - most UK orders will arrive the next day.

We are partnered with several delivery companies including Royal Mail, DHL, UPS and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us.

A confirmation email will be sent when your order has been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.

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Shipping to the UK

Order before 4PM for same day dispatch with Royal Mail, 2PM for next day delivery with DHL and 1PM for next day delivery with APC.
We offer FREE Shipping on UK orders over £99, weighing less than 1kg.
The courier options deliver Monday to Friday, Royal Mail delivers to residential addresses on Monday to Saturday.

For small low value orders our cheapest delivery service is Royal Mail First Class. For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options.

International Postage

Order before 4PM for same day dispatch with Royal Mail.
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DHL Express offers NEXT DAY delivery to most European destinations and a very fast delivery for countries further afield, generally 2-3 days.

Orders shipped outside the EU may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.

SpeedyBee F405 AIO 40A Bluejay 25.5×25.5 3-6S Flight Controller