SpeedyBee F405 V3 Flight Controller User Manual

Stack F405 V3
30×30 BLS 50A
F405 V3 BLS 50A 30×30 Stack
User Manual V1.0

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Specs Overview

Dimensions

Package

Option 1 – SpeedyBee F405 V3 50A 30×30 Stack

1. SpeedyBee F405 V3 Flight Controller x 1
2. SpeedyBee BLS 50A 4-in-1 ESC x 1
3. 35V 1000uF Low ESR Capacitor x 1
4. M3 Nylon Nut x 5
5. M3 silicone O Ring x 5
6. M3*8mm Silicone Grommets(for FC) x 5
7. M3*8.1mm Silicone Grommets(for ESC) x 5
8. SH 1.0mm 15mm-length 8pin Cable(for FC-ESC connection) x 1
9. M3*30mm Iner-hexagon Screws x 5
10. DJI 6pin Cable(80mm) x 1
11. XT60 Power Cable(70mm) x 1

Option 2 – SpeedyBee F405 V3 Flight Controller

1. SpeedyBee F405 V3 Flight Controller x 1
2. M3*8mm Silicone Grommets(for FC) x 5
3. SH 1.0mm 30mm-length 8pin Cable(for FC-ESC connection) x 1
4. DJI 6pin Cable(80mm) x 1

1. SpeedyBee BLS 50A 4-in-1 ESC x 1
2. 35V 1000uF Low ESR Capacitor x 1
3. M3 silicone O Ring x 5
4. XT60 Power Cable(70mm) x 1
5. SH 1.0mm 30mm-length 8pin Cable(for FC-ESC connection) x 1
6. M3*8.1mm Silicone Grommets(for ESC) x 5

FC & ESC Connection

Use the 8-pin cable in the package to connect the FC and the ESC.
Or solder 8 wires directly to the 8 pads on each end.
Method 1 – Using 8-pin cable
Use any end of the 8-pin JST cable to connect the FC to the ESC.

Method 2 – Direct soldering
Solder 8 wires to the 8 pads on each end referring to the pad definition below.

F405 V3 Flight Controller

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.
Long press the button for 3 seconds to switch the control modes between BF_LED mode and SB_LED mode.
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.
BOOT Button
[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.
FC’s Peripheral Connection

Note: When using both a receiver and an Air Unit (including a direct connection using a ribbon cable) on the F405 V3 flight controller, there is an issue. This arises because the built-in SBUS receiver on the Air Unit and the external receiver are both connected to the Rx2 pad（SBUS pad） on the flight controller. As a result, the external receiver cannot be recognized properly by the flight controller. To resolve this, it is necessary to disconnect the SBUS wire from the Air Unit or connect the external receiver to the Rx3 pad on the UART3 port. It is known that SBUS receivers and part of the ELRS receivers conflict with the built-in receiver on the Air Unit in the F405 V3 flight controller.Even ELRS reciver has this issue, but TBS reciver will not affected by this issue.

App & FC Configuration

Get the SpeedyBee App
Search ‘SpeedyBee’ on Google Play or App Store. Or download the Android .apk file on our website: https://www.speedybee.com/download.
FC Configuration

FC Firmware Update

SpeedyBee F405 V3 flight controller does not support wireless firmware flashing, so please flash firmware for it on your PC following the steps below:

1. Connect the flight controller to the PC with a USB cable
2. Open Betafight/ INAV configurator on your PC. Take Betaflight configurator as an example, go to the ‘Firmware Flashing’ page, choose the target ‘SPEEDYBEEF405V3’ and flash.

Specifications

be enabled with Baud rate 115200 on UART4)
WIFI| Not supported
WI 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| *Betafilght 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 highspeed U3 cards are SDXC). Also the card MUST be formatted with the FAT16 or FAT32 (recommended) flesystems. So, you could use any SD card less than 32GB, but the Betalight 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 bra for the recommended SD cards or buy the lasted carrlq from our store.
Current Sensor Input| Supported. For SpeedyBee BLS 50A ESC, please set scale = 386 and Offset = 0.
Power Input| 3S – 6S Upo(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 500mAcurrent 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-M13 on front side.
UART| 6 sets(UART1, UART2, UART3, UART4(Dedicated for Bluetooth connection)), UART5(Dedicated for ESC telemetry),UART6
ESC Telemetry| UART R5(UART5)
12C| 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 Betafilght firmware.
Buzzer| BZ+ and BZ- pad used for 5V Buzzer
BOOT Button| Supported. [Al 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.
Smart Port / F.Port| Not supported
Supported Flight Controller Firmware| BetaFlight(Default), INAV (INAV firmware can only use Multishot (recommended) and OneShot125. Please note that DShot is not supported.)
Firmware Target Name| SPEEDYBEEF405V3
Mounting| 30.5 x 30.5mm( 4mm hole diameter)
Dimension| 41.6(L) x 39.4(W) x 7.8(H)mm
Weight| 9.6g

Part 3 – SpeedyBee BLS 50A 4-in-1 ESC

Layout

Connection with Motors & Power Cable

Note: In order to prevent the stack from being burnt out by voltage spikes on powering up, it is strongly recommended to use the Low ESR capacitor in the package.
ESC Configuration

If you’d like to use a PC configurator, we recommend the ESC Configurator.
ESC Firmware Update
You could flash both BLHeli_S and Blue Jay firmware for this ESC.
You need to pulg in the battery to the F405 V3 and then connect a USB cable between the F405 V3 and your PC. Then flash ESC firmware (BLHeli_S or Blue Jay) in the following online configurator: https://esc-configurator.com/
Note: ESC Type should be set as ‘J-H-50’.

Specifications

References

• ESC Configurator - for Bluejay, BLHeli_S and AM32
• download

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