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SpeedyBee F405 V3 50A FC&ESC Stack BMI270 F405 Flight Controller BLHELIS 50A 4in1 ESC 3-6S LiPo 30X30mm for FPV Freestyle Drones

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Product Name


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SpeedyBee F405 V3 50A FC&ESC Stack BMI270 F405 Flight Controller BLHELIS 50A 4in1 ESC 3-6S LiPo 30X30mm for FPV Freestyle Drones

Product Name

SpeedyBee F405 V3 30x30 Flight Controller





USB Port Type




OSD Chip

AT7456E chip

BLE Bluetooth

Supported. Used for Flight Controller configuration

DJI Air Unit Connection Way

Two ways supported: 6-pin connector or direct soldering.

Blackbox MicroSD Card Slot

*Betaflight firmware requires the type of the microSD card to be

either Standard (SDSC) or High capacity (SDHC),so extended

capacity cards (SDXC) are not supported(Many high-speed U3

cards are SDXC). Also the card MUST be formatted with the

FAT16 or FAT32 (recommended) filesystems. So, you could

use any SD card less than 32GB, but the Betaflight can only

recognize 4GB maximum. We suggest you use this

3rd party formatting tooland choose 'Overwrite format' then format

your card.

BetaFlight Camera Control Pad

Yes(CC pad on the front side)

Current Sensor Input

Supported. For SpeedyBee BLS 50A ESC, please set scale = 386 and Offset = 0.

Power Input

3S - 6S Lipo(Through G, BAT pins/pads from the 8-pin connector or 8-pads on the bottom side)

5V Output

9 groups of 5V output, four +5V pads and 1 BZ+ pad( used for Buzzer) on front side,

and 4x LED 5V pads. The total current load is 2A.

9V Output

2 groups of 9V output, one +9V pad on front side and other included in a connector

on bottom side. The total current load is 2A.

3.3V Output

Supported. Designed for 3.3V-input receivers. Up to 500mA current load.

4.5V Output

Supported. Designed for receiver and GPS module even when the FC is powered

through the USB port. Up to 1A current load.

ESC Signal

M1 - M4 on bottom side and M5-M8 on front side.


5 sets(UART1, UART2, UART3, UART4(For ESC Telemetry), UART6)

ESC Telemetry UART



Supported. SDA & SCL pads on front side. Used for magnetometer, sonar, etc.

Traditional Betaflight LED Pad

Supported. 5V, G and LED pads on bottom of the front side. Used for WS2812 LED

controlled by Betaflight firmware.


BZ+ and BZ- pad used for 5V Buzzer

BOOT Button

[A]. Press and hold BOOT button and power the FC on at the

 same time will force the FC to enter DFU mode, this is for

firmware flashing when the FC gets bricked.
[B]. When the FC is powered on and in standby mode, the

BOOT button can be used to controller the LED strips

connected to LED1-LED4 connectors on the bottom side.

By default, short-press the BOOT button to cycle the LED

displaying mode. Long-press the BOOT button to switch

between SpeedyBee-LED mode and BF-LED mode.

Under BF-LED mode, all the LED1-LED4 strips will be

controlled by Betaflight firmware.

RSSI Input

Supported. Named as RS on the front side.


Use any TX pad of UART for the SmartPort feature.

Supported Flight Controller Firmware

BetaFlight(Default), EMUFlight, INAV

Firmware Target Name



30.5 x 30.5mm( 4mm hole diameter)


41.6(L) x 39.4(W) x 7.8(H)mm



Product Name

SpeedyBee BLS 50A 30x30 4-in-1 ESC


BLHeli_S JH50

Wireless Configuration

Full Configuration Supported in the SpeedyBee app

PC Configurator Download Link


Continuous Current

50A * 4

Burst Current


TVS Protective diode


External Capacitor

1500uF Low ESR Capacitor(In the package)

ESC Protocol


Power Input

3-6S LiPo

Power Output


Current Sensor

Support (Scale=386 Offset=0)


30.5 x 30.5mm( 4mm hole diameter)


45.6(L) * 44(W) * 6.1mm(H)




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