30.5×30.5mm SpeedyBee F405 V4 BLS 60A 4In1 ESC F4 OSD Dual Gyro Flight Controller 3-6S with 9V 5V 3.3V BEC Output Stack for RC Drone FPV Racing
The SpeedyBee F405 V4 Flight Controller is designed for high-performance RC drone FPV racing. Featuring an STM32F405 MCU and ICM42688P gyro, it ensures precise control. The built-in OSD chip, AT7456E, and Type-C USB port enhance connectivity and configuration. Compatible with DJI O3, RunCam Link, Caddx Vista, and DJI Air Unit V1, it supports two connection methods. The controller includes a microSD card slot for Blackbox data, supporting cards up to 32GB, formatted in FAT16 or FAT32. It offers multiple voltage outputs: 9V, 5V, and 3.3V, with a total current load of 3A. Designed for 3S-6S LiPo power input, it ensures reliable performance for demanding racing conditions.
FC Specifications:
Product Name
SpeedyBee F405 V4 Flight Controller
MCU
STM32F405
IMU(Gyro)
ICM42688P
USB Port Type
Type-C
Barometer
Built-in
OSD Chip
AT7456E chip
BLE Bluetooth
Supported. Used for Flight Controller configuration (MSP should be enabled with Baud rate 115200 on UART4)
WIFI
Not supported
DJI Air Unit Connection Way
Two ways supported: 6-pin connector or direct soldering.
6-pin DJI Air Unit Plug
Supported. Completely compatible with DJI O3/RunCam Link/Caddx Vista/DJI Air Unit V1, no wire is needed to be changed.
Blackbox MicroSD Card Slot
*Betaflight firmware requires the type of the microSD card to be either Standard (SDSC) or High capacity (SDHC) under 32GB, so extended capacity cards (SDXC) are not supported(Many high-speed U3 cards are SDXC). Also the microSD card MUST be formatted with the FAT16 or FAT32 (recommended) format, 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 tool and choose ‘Overwrite format’ then format your card. Also check out here for the recommended SD cards or buy the tested cards from our store.
Current Sensor Input
Supported. For SpeedyBee BLS 55A ESC, please set scale = 400 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 3A.
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 3A.
3.3V Output
Supported. Designed for 3.3V-input receivers. Up to 500mA current load.
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