SpeedyBee F405 V4 BLS 55A 30x30 FC & ESC Stack

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

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