SpeedyBee F405 V4 BLS 55A 30x30 Stack User manual

SpeedyBee
F405 V4 BLS 55A 30x30 Stack
User Manual V1.0
(Click on any section to jump)
Contents
Pa 1 - OverView
Specs Oveiew
Dimensions
Package
FC & ESC Connection
Pa 2 - SpeedyBee F405 V4 Flight Controller
Layout
FC’s Peripheral Connection
App & FC Conguration
FC Firmware Update
Specications
Pa 3 - SpeedyBee BLS 55A 4-in-1 ESC
Layout
Connection with Motors & Power Cable
ESC Conguration
ESC Firmware Update
Specications
2
1
3
4
5
6
7
8
9
10
11
12
13
14

Product Name
Flight Controller
ESC
Bluetooth
Wireless FC Firmware Flashing
Power Input
Mounting
Dimension
Weight
SpeedyBee F405 V4 BLS 55A 30x30 Stack
SpeedyBee F405 V4 Flight Controller
SpeedyBee BLS 55A 4-in-1 ESC
Suppoed. For FC & ESC parameter settings
NOT Suppoed
3-6S LiPo
30.5 x 30.5mm（4mm hole size ）
45.6mm(L) x 44mm(W) x 18.3mm(H)
34g
Pa 1 - OverView
1/14
Specs Oveiew
Wireless Blackbox
Dwonload & Analysis NOT Suppoed

SpeedyBee F405 V4 BLS 55A 30x30 Stack
SpeedyBee F405 V4
SpeedyBee BLS 55A 4-in-1 ESC
Suppoed. For FC & ESC parameter settings
NOT Suppoed
3-6S LiPo
30.5 x 30.5mm（4mm hole size ）
45.6mm(L) x 44mm(W) x 18.3mm(H)
34g
2/14
Dimensions
30.5mm
44mm39.4mm
16.1mm
1.6mm 1.6mm
8mm7.8mm
45.6mm
41.6mm
30.5mm
4mm
4mm

Package 3/14
SpeedyBee F405 V4 Flight Controller x 1
SpeedyBee BLS 55A 4-in-1 ESC x 1
35V 1000uF Low ESR Capacitor x 1
M3 Nylon Nut x 5
M3 silicone O Ring x 5
M3*8mm Silicone Grommets(for FC) x 5
M3*8.1mm Silicone Grommets(for ESC) x 5
SH 1.0mm 15mm-length 8pin Cable(for FC-ESC connection) x 1
SH 1.0mm 75mm-length 8pin Cable* x 1
M3*30mm Iner-hexagon Screws x 5
DJI 6pin Cable(80mm) x 1
XT60 Power Cable(70mm) x 1
* When the ESC tail faces the drone's front, use this cable for the ight controller
and ESC; both ends plug interchangeably.
1
2
3
4
5
6
7
8
9
10
11
12
1
2
Option 1 - SpeedyBee F405 V4 55A 30x30 Stack
310 12
4
5
611
7
8
9

Option 2 - SpeedyBee F405 V4 Flight Controller
1
2
3
4
1
2
3
4
5
6
SpeedyBee BLS 55A 4-in-1 ESC x 1
35V 1000uF Low ESR Capacitor x 1
M3 silicone O Ring x 5
XT60 Power Cable(70mm) x 1
SH 1.0mm 30mm-length 8pin Cable(for FC-ESC connection) x 1
M3*8.1mm Silicone Grommets(for ESC) x 5
Option 3 - SpeedyBee BLS 55A 4-in-1 ESC
1 2
3
4
6
5
SpeedyBee F405 V4 Flight Controller x 1
M3*8mm Silicone Grommets(for FC) x 5
SH 1.0mm 30mm-length 8pin Cable(for FC-ESC connection) x 1
DJI 6pin Cable(80mm) x 1
1
3
2 4

FC & ESC Connection 4/14
Method 1 - Using 8-pin cable
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.
Use any end of the 8-pin JST cable to connect the FC to the ESC.
Solder 8 wires to the 8 pads on each end referring to the
pad denition below.
Method 2 - Direct soldering
BLS 55A 4-in-1 ESC
F405 V4 Flight Controller
BAT
GND
M2
M3
M4
CUR
TEL
M1
VBAT
GND
S2
S3
S4
CURRENT
N/A
S1
F405 V4 Flight Controller BLS 55A 4-in-1 ESC

Pa 2 - F405 V4 Flight Controller
5/14
Layout
USB TYPC-C Po
VTX(Analog)Betaight LEDGPS&Compass
5V 3A BEC Gyro(ICM42688P)
Red LED
Green LED
Buzzer
Blue LED
ReceiverFor Second 4-in-1 ESCFPV Cam
OSD Chip(AT7456E)
9V 3A BEC
8pin Connector(to ESC)
BOOT Button
Antenna
Barometer
Bluetooth Chip
Orange LED
4-level LED
batte 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)
LED1
LED2 LED3
LED4
VTX(DJI)

LED Indicator Denition
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 ight controller rmware.
[A]Only if the ight controller gets bricked and can’t power up, please follow these
steps to re-ash rmware for it:
① Inse a USB A to TYPE-C cable to your PC.
② Press and hold the BOOT button, inse the USB cable into the ight controller,
then release the BOOT button.
③ Open Betaight/INAV congurator on the PC, go to the ‘Firmware Flashing’
page, choose the target ‘SPEEDYBEEF405V4’ and ash.
[B]. When the FC is powered on and in standby mode, the BOOT button can be used to
control the LED strips connected to LED1-LED4 pads on the corners. Sho-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 Betaight rmware.
The default mode is BF-LED mode.
Long press the button for 3 seconds to switch the control modes between BF_LED
mode and SB_LED mode.
BOOT Button
Orange LED - LED Control Mode Indicator. It indicates the 4 sets of LED strips connected
to LED1-LED4 pads on the corners of the ight controller are controlled by Betaight
rmware(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.
OFF ：indicates the 4 x LEDs are controlled by Betaight rmware.
Red LED
Green LED
Blue LED
Orange LED

6/14
FC’s Peripheral Connection
PPM
PPM Receiver
CH2 RX
CH1 TX
5V
GND
5-36V
GND
Video
G/TX
M/RX
Model: Phoenix 2 Joshua Edition
5-36V
GND
Video
GND
Menu
Model: Phoenix 2
Crossre Nano Rx
SBUS Receiver
ELRS Receiver
Spektrum
Receiver
Buzzer
Analog VTX
5V GND VIDEO IRC PGND 3.7-5V
5-36V
GND
Video
Menu
LED Strip
BZ-
BZ+
GPS
DJI Air Unit
7.4-26.4V
GND
RX
Video
GND
5V
5V
TX
GND
GND
CH2
CH1
GND
GND
5V
GND
LED
SDA
SCL
TX
RX
GND
5V
SDA
SCL
R6
T6
G
4V5
G
VTX
9V
T1
R1
SBUS
IRC
SBUS
RX
TX
5V
G
NC
S
5V
GND
CAM
CC
DIN
LED
DIN
LED
DIN LED
SBUS
SERVO
G
SIGNAL
5V
5V
S9
G
G
5V
SBUS
5V
5V
5V
T2
R2
TX
5V
G
RX
T2
GND
GND
PPM
3V3
3V3

BAT
GND
M2
M3
M4
CUR
TEL
M1
VBAT
GND
S2
S3
S4
CURRENT
N/A
S1
F405 V4 Flight Controller BLS 55A 4-in-1 ESC
Note1: 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.
Note2: The FC and ESC can also connected via direct soldering.
Soldering pads denition is as follows.
Motor 4
Motor 3
Motor 2
Motor 1
XT60 Power Cable
1000uF Low ESR
Capacitor

Cable Connection vs DJI O3 Air Unit
7.4-26.4V
GND
RX
TX
GND
SBUS
Use 6-pin cable comes with the O3 Air Unit
Cable Connection vs RunCam Link/
Caddx Vista Air Unit
Use 6-pin cable comes with the F405 V4 stack
(See the accesso No.11 in the package section)
Cable Connection vs DJI Air Unit V1
Use 6-pin cable comes with the F405 V4 stack
(See the accesso No.11 in the package section)

RX
TX
5V
G
Impoance notice for SBUS receiver
Impoance notice for ELRS receiver
SBUS Receiver
When using an SBUS receiver, the SBUS signal wire of the receiver
must be connected to the SBUS pad on the front side of the
ight controller (this pad internally uses UART2).
If you are also using the DJI Air Unit(O3/Link/Vista/Air Unit V1),
you will need to disconnect the SBUS signal wire from the
Air Unit harness. Failure to do so will prevent the SBUS receiver
from being properly recognized by the ight controller. You can
use tweezers to pick out the SBUS wire from the 6-pin harness
connector (or directly cut this wire) and insulate the exposed
pa of the wire carefully.
We recommend connecting the ELRS receiver's TX and RX to the
T2 and R2 pads on the ight controller. However, when using the
DJI Air Unit simultaneously, some ELRS receivers may not be
recognized properly by the ight controller. If you encounter
this issue, you need to disconnect the SBUS signal wire from
the Air Unit harness. You can use tweezers to pick out the
SBUS wire from the 6-pin harness connector
(or directly cut this wire) and insulate the exposed
pa of the wire carefully.
Do NOT connect this wire to assure
the external SBUS receiver work properly!
DJI O3/Vista/Link/Air Unit V1F405 V4 Flight Controller
SBUS
5V
GND
ELRS Receiver
For some ELRS receivers, it is
necessa to disconnect this wire
in order to function properly!
DJI O3/Vista/Link/Air Unit V1F405 V4 Flight Controller
TX
5V
G
RX

7/14
App & FC Conguration
Search ‘SpeedyBee’ on Google Play or App Store. Or download the Android .apk le
on our website: https://www.speedybee.com/download.
Get the SpeedyBee App
FC Conguration
1
2
43

8/14
FC Firmware Update
SpeedyBee F405 V4 ight controller does not suppo wireless rmware ashing,
so please ash rmware for it on your PC following the steps below:
① Connect the ight controller to the PC with a USB cable
② Open Betaght/ INAV congurator on your PC. Take Betaight
congurator as an example, go to the ‘Firmware Flashing’ page, choose the target
‘SPEEDYBEEF405V4’ and ash.

9/14
Specications
Product Name
MCU
IMU(Gyro)
USB Po Type
Barometer
OSD Chip
BLE Bluetooth
WIFI
DJI Air Unit Connection Way
6-pin DJI Air Unit Plug
Blackbox MicroSD Card Slot
Current Sensor Input
Power Input
5V Output
9V Output
3.3V Output
4.5V Output
ESC Signal
UART
ESC Telemet
I2C
Traditional Betaight LED Pad
Buzzer
BOOT Button
RSSI Input
Sma Po / F.Po
Suppoed Flight Controller
Firmware
Firmware Target Name
Mounting
Dimension
Weight
SpeedyBee F405 V4 30x30 Flight Controller
STM32F405
ICM42688P
Type-C
Built-in
AT7456E󶀅chip
Suppoed. Used for Flight Controller conguration󶀅(MSP should be enabled with Baud
rate 115200 on UART4)
Not suppoed
Two ways suppoed: 6-pin connector or direct soldering.
Suppoed. Completely compatible with DJI O3/RunCam Link/Caddx Vista/DJI Air Unit V1,
no wire is needed to be changed.
*Betaight rmware 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 suppoed
(Many high-speed U3 cards are SDXC). Also the microSD card MUST be formatted with the
FAT16 or FAT32 (recommended) format. So, you could use any SD card less than 32GB, but the
Betaight can only recognize 4GB maximum. We suggest you use this󶀅3rd pay 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.
Suppoed. For SpeedyBee BLS 55A ESC, please set scale = 400 and Oset = 0.
3S - 6S Lipo(Through G, BAT pins/pads from the 8-pin connector or 8-pads on the bottom side)
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.
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.
Suppoed. Designed for 3.3V-input receivers. Up to 500mA current load.
Suppoed. Designed for receiver and GPS module even when the FC is powered through the
USB po. Up to 1A current load.
M1 - M4 on bottom side and M5-M8 on front side.
6 sets(UART1, UART2, UART3, UART4(Dedicated for Bluetooth connection)), UART5
(Dedicated for ESC telemet),UART6
UART R5(UART5)
Suppoed. SDA & SCL pads on front side. Used for magnetometer, sonar, etc.
Suppoed. 5V, G and LED pads on bottom of the front side. Used for WS2812 LED
controlled by Betaight rmware.
BZ+ and BZ- pad used for 5V Buzzer
Suppoed.
[A]. 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 rmware ashing 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, sho-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 Betaight rmware.
Suppoed. Named as RS on the front side.
Not suppoed
BetaFlight(Default), INAV
SPEEDYBEEF405V4
30.5 x 30.5mm( 4mm hole diameter)
41.6(L) x 39.4(W) x 7.8(H)mm
10.5g

Pa 3 - SpeedyBee BLS 55A 4-in-1 ESC
10/14
Layout
MOTOR 4
MOTOR 3
MOTOR 2
MOTOR 1
Capacitor pin
hole(GND)
Capacitor pin
hole(BAT+)
8pin connector(to FC)
TVS Diode
BAT+BAT-
MCU(BB21)
Driver Chips

11/14
Connection with the ight controller & Motors
BAT
GND
M2
M3
M4
CUR
TEL
M1
VBAT
GND
S2
S3
S4
CURRENT
N/A
S1
F405 V4 Flight Controller BLS 55A 4-in-1 ESC
Note1: 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.
Note2: The FC and ESC can also connected via direct soldering.
Soldering pads denition is as follows.
Motor 4
Motor 3
Motor 2
Motor 1
XT60 Power Cable
1000uF Low ESR
Capacitor

12/14
ESC Conguration
You could use the SpeedyBee APP to congure this ESC wirelessly for
both BLHeli_S or Bluejay rmware. Steps:
You could also use PC congurators to congure this ESC. We recommend the
ESC Congurator. Please use Google Chrome browser and visist:
http://www.esc-congurator.com.
1
2
3
4

13/14
ESC Firmware Update
This 8-bit 55A ESC can run BLHeliS or Bluejay rmware. It is loaded
with BLHeliS rmware by default. You could also ash it to Bluejay
rmware which can suppo RPM ltering and Bi-directional Dhsot.
Firmware ashing steps are as follows:฀
● Remove all the propellers from your drone.฀
● Ensure that the ight controller is connected properly to the ESC,
then power up the drone. This step ensures that the ESC stas
up correctly.฀
● Connect the ight controller to the computer using a
USB Type-C cable.฀
● Open the Chrome browser and visit the following
website: https://www.esc-congurator.com/฀
● Follow the rmware ashing steps as shown in the screenshots below.฀฀
Impoant note:
On the 6th inteace, the "ESC" type must be selected as "J-H-40".
4
5
1
2
3
0
0
6
4
4

14/14
Specications
Product Name
Firmware
PC Congurator Download Link
Continuous Current
Burst Current
TVS Protective diode
External Capacitor
ESC Protocol
Power Input
Power Output
Current Sensor
ESC Telemet
Mounting
Dimension
Weight
SpeedyBee BLS 55A 30x30 4-in-1 ESC
BLHeli_S J-H-40
https://esc-congurator.com/
55A * 4
70(10 seconds)
Yes
1000uF Low ESR Capacitor(In the package)
DSHOT300/600
3-6S LiPo
VBAT
Suppo (Scale=400 Oset=0)
Not suppoed
30.5 x 30.5mm( 4mm hole diameter)
45.6(L) * 44(W) *8mm(H)
23.5g