Part 2 - F405 V3 Flight Controller
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Layout
LED Indicator Definition
RED LED
- Power Indicator.
Solid Red
after powering up.
GREEN LED
- Bluetooth status light.
Solid Green
indicates Bluetooth is connected.
BLUE LED
- Flight controller status light which is controlled by the flight controller firmware.
[A]Only if the flight controller gets bricked and can’t power up, please follow these
steps to re-flash firmware for it:
① Insert a USB A to TYPE-C cable to your PC.
② Press and hold the BOOT button, insert the USB cable into the flight controller,
then release the BOOT button.
③ Open Betaflight/Emuflight/INAV configurator on the PC, go to the ‘Firmware Flashing’
page, choose the target ‘SPEEDYBEEF405V3’ and flash.
[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 pads on the corners. 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 the Betaflight firmware.
Long press the button for 3 seconds to switch the control modes between BF_LED
mode and SB_LED mode.
BOOT Button
USB TYPC-C Port
VTX(Analog/DJI)
Betaflight LED
GPS&Compass
OSD Chip(AT7456E)
Gyro(BMI270)
Red LED
Green LED
Buzzer
Blue LED
Receiver
For Second 4-in-1 ESC
FPV Cam
9V 2A BEC
5V 2A BEC
8pin Connector(to ESC)
BOOT Button
Antenna
Bluetooth Chip
Orange LED
4-level LED
battery indicator
MCU: F405
Extra PWM output
SD Card Slot
(Use SDSC/SDHC cards,
format to 'FAT32' format)
DJI Air Unit Connector
TVS Diode
(Anti-volatge spike)
Barometer
LED1
LED2
LED3
LED4
Orange LED
- LED Control Mode Indicator. It indicates the 4 sets of LED strips connected
to LED1-LED4 pads on the corners of the flight controller are controlled by Betaflight
firmware(BF_LED mode) or the Bluetooth chip(SB_LED mode).
Solid Orange
：tindicates the 4 x LEDs are in SB_LED mode. In this mode, when the FC is
powered on and in standby mode, press the BOOT button to cycle the display modes
of the LEDs. You could also change modes in the app wirelessly.
OFF
：indicates the 4 x LEDs are controlled by Betaflight firmware.
