The popular SpeedyBee F405 V4 stack is now an updated version, featuring a BLS 55A 4-in-1 ESC, STM32F405 MCU, and ICM42688P gyro for more precise control. The compact F405 V4 flight controller supports Bluetooth configuration and a 6S LiPo power supply, making it a versatile choice for FPV enthusiasts. Combined with the SpeedyBee BLS 55A 4-in-1 ESC, which provides up to 55A of continuous current, these components make for a powerful and reliable drone.
Features.
Compact design with 30.5 x 30.5 mm size is suitable for mounting on a variety of frames
Precise control with STM32F405 MCU and ICM42688P gyroscope
Continuous current from the SpeedyBee BLS 55A ESC regulator
Easy setup of the on-board controller via Bluetooth
Compatible with LiPo batteries from 3S to 6S
Features.
F405 V4 FC flight controller:
MCU: STM32F405
IMU (Gyro): ICM42688P
USB Port: Type-C
Barometer: built-in
OSD chip: AT7456E
BLE Bluetooth: Supported for Flight Controller configuration (MSP enabled with Baud rate 115200 on UART4)
DJI Air Unit connection method: Supported and compatible with various DJI models, no need to replace wires.
Blackbox MicroSD memory card support: Compatible with standard (SDSC) or high capacity (SDHC) cards up to 32GB.
Input Current Sensor: Yes (for SpeedyBee BLS 55A ESC, set scale = 400 and offset = 0)
Input power: 3S - 6S Lipo
5V output: 9 groups of 5 V output.
9V output: 2 groups of 9 V output.
3.3 V output: supports current loads up to 500 mA.
4.5 V output: supports current loads up to 1 A.
ESC outputs: M1 - M4 on the bottom side and M5-M8 on the top side
*Note: BOOT button. Usage options: [А]. Press and hold the BOOT button and turn on the FC at the same time to make the FC enter DFU mode, this is for flashing the FC when the firmware has flown. [Б]. When the PC is powered on and in standby mode, the BOOT button can be used to control the LED strips connected to the LED1-LED4 connectors on the bottom side. By default, short press the BOOT button to enter the LED display mode. Press and hold the BOOT button to toggle between SpeedyBee-LED mode and BF-LED mode. In the BF-LED mode, all LED1-LED4 bands will be controlled by the Betaflight firmware.
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