Overview
The SpeedyBee F405 V4 BLS 55A 30x30 FC & ESC Stack is an advanced flight controller and ESC (Eletronic Speed Controller) stack for FPV drones. Powered by the STM32F405 MCU from STMicroelectronics, this flight controller ensures efficient and precise processing, complemented by the ICM42688P gyro for outstanding performance. The on board MaxLinear LDO chip and 100uF tantalum capacitor minimize power interference with the gyro, improving flight stability.
This stack features a built-in Bluetooth module, enabling seamless wireless configuration of the flight controller and ESC through the SpeedyBee app. The 4-in-1 ESC supports a continuous current of 55A per channel and can handle bursts of up to 70A for 10 seconds, protected by a robust aluminum heat sink for efficient cooling.
The stack offers versatile power outputs, including nine 5V outputs (3A total), two 9V outputs (3A each), and additional outputs for 3.3V and 4.5V to support various peripherals. A dedicated 6-pin connector ensures compatibility with DJI O3, RunCam Link, Caddx Vista, and DJI Air Unit V1, eliminating the need for wire modifications. The microSD slot supports up to 4GB of Blackbox data, making flight data analysis convenient and efficient.
Additional features include an onboard battery level indicator with 4-level LED feedback, four sets of LED pads for customization, and a TVS protective diode to safeguard against voltage spikes. The ESC is further reinforced with 20 high-quality SMD capacitors and a 1000uF low ESR capacitor to ensure smooth performance.
The flight controller's dimensions are 41.6 x 39.4 x 7.8 mm, weighing 10.5g, while the ESC measures 45.6 x 44 x 8 mm and weighs 23.5g. This stack supports 3-6S LiPo input and includes USB Type-C connectivity for added convenience.
The SpeedyBee F405 V4 BLS 55A 30x30 FC & ESC Stack combines an advance flight controller and a robust ESC, making it an ideal choice for FPV drone for high performance and reliability.
Specifications for Flight Controller
Technical specifications for SpeedyBee F405 V4 Flight Controller.
| Specification | Details |
|---|---|
| MCU | STM32F405 |
| Gyro | ICM42688P |
| USB Port | Type-C |
| Barometer | Built-in |
| OSD Chip | AT7456E |
| Bluetooth | Supported (UART4, Baud rate 115200) |
| Power Input | 3S - 6S LiPo |
| Supported Flight Controller Firmware | BetaFlight (Default) INAV |
| Mounting | 30.5 x 30.5mm (4mm hole diameter) |
| Dimensions | 41.6 x 39.4 x 7.8 mm |
| Weight | 10.5g |
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Specifications for ESC
Technical specifications for 55A ESC.
| Specification | Details |
|---|---|
| Firmware | BLHeli_S J-H-40 |
| Continuous Current | 55A per channel |
| Burst Current | 70A (10 seconds) |
| Power Input | 3-6S LiPo |
| ESC Protocol | DSHOT300/600 |
| Dimensions | 45.6 x 44 x 8 mm |
| Weight | 23.5g |
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Features
Feature rich SpeedyBee F405 V4 Flight Controller and ESC.
STM32F405
Equipped with the STM32F405 MCU
Gyro
ICM42688P gyro for outstanding stability.
Bluetooth
Built-in Bluetooth for wireless FC & ESC configuration.
Real 55A
4-in-1 ESC, 55A per channel
Supports 8 Motors
8 motors output for X8/Y6
Motor Direction
Set motor direction wirelessly.
Battery Level
Onboard 4-level battery indicators.
UARTS
4x UARTs for Receiver + VTX + Camera + GPS
Dimensions
Dimensions for SpeedyBee F405 V4 BLS 55A 30x30 Flight Controller & ESC Stack
Flight Controller Layout
Pinouts and Board layout for F405 V4 Flight Controller.
4-in-1 ESC Layout
Pinouts and Board layout for ESC.
Package
List of items included in the package.
| # | Item | Quantity |
|---|---|---|
| 1 | SpeedyBee F405 V4 Flight Controller | x 1 |
| 2 | SpeedyBee BLS 55A 4-in-1 ESC | x 1 |
| 3 | 35V 1000uF Low ESR Capacitor | x 1 |
| 4 | M3 Nylon Nut | x 5 |
| 5 | M3 Silicone O Ring | x 5 |
| 6 | M3*8mm Silicone Grommets (for FC) | x 1 |
| 7 | M3*8.1mm Silicone Grommets (for ESC) | x 1 |
| 8 | SH 1.0mm 25mm-length 8pin Cable (for FC-ESC connection) | x 1 |
| 9 | SH 1.0mm 75mm-length 8pin Cable | x 1 |
| 10 | M3*30mm Inner-hexagon Screws | x 5 |
| 11 | DJI 6pin Cable (80mm) | x 1 |
| 12 | XT60 Power Cable (100mm) | x 1 |
Opps
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