30.5×30.5mm SpeedyBee F405 V4 F4 Flight Controller with 5V 9V BEC Output 55A BL_S 3-6S 4in1 ESC Stack Support DJI O3 / O4 for RC Drone FPV Racing
The SpeedyBee F405 V4 Flight Controller, measuring 30.5×30.5mm, is engineered for high-performance FPV racing drones. Equipped with an STM32F405 MCU and ICM42688P gyro, it supports Bluetooth configuration and features a built-in OSD chip. Compatible with DJI O3, RunCam Link, Caddx Vista, and DJI Air Unit V1, it offers a seamless connection via a 6-pin connector or direct soldering. The controller supports microSD cards up to 32GB formatted in FAT16 or FAT32 for blackbox data logging. It includes multiple voltage outputs: 5V, 9V, and 3.3V, catering to various components with a total current load of 3A. The SpeedyBee F405 V4 is compatible with 3S to 6S LiPo batteries, ensuring versatile power input options.
FC Specifications: ( Manual)
Product Name
SpeedyBee F405 V4 30×30 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.
mso-border-left-alt:0.500
Package Included: 1 x SpeedyBee F405 V4 F4 Flight Controller
Recommended Category: Toys & Games > Remote & App Controlled Vehicles & Parts > Remote & App Controlled Vehicle Parts > Multi Rotor Parts
Additional information
Weight
0.112 kg
Model
FC&ESC
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