SpeedyBee F405 Mini BLS 35A Bluetooth Stack User Manual

SpeedyBee F405 Mini BLS 35A Bluetooth Stack

Specifications

• Product Name: SpeedyBee F405 Mini BLS 35A 20×20 Stack
• Flight Controller: SpeedyBee F405 Mini
• ESC Bluetooth: SpeedyBee BLS 35A Mini V2 4-in-1 ESC
• WiFi: NOT Supported
• Wireless FC Firmware Flashing: NOT Supported
• Wireless Blackbox Download & Analysis: NOT Supported
• Power Input Mounting: 3-6S LiPo
• Dimensions: 32mm(L) x 35mm(W) x 15.2mm(H)
• Weight: 13.5g

Overview

Specs Overview

Bluetooth

| Supported. Used to connect with the SpeedyBee App for flight controller and ESC parameter configuration. Please make sure the MSP switch on UART 4 is turned on and

set to a baud rate of 115200, otherwise Bluetooth functionality will not be available.

WiFi| NOT Supported
Wireless FC Firmware Flashing|

NOT Supported

Wireless Blackbox Dwonload & Analysis|

NOT Supported

Power Input| 3-6S LiPo

Mounting

| 20 x 20mm 3.5mm hole size，Compatible with M2 and M3 screws/Silicone grommets.
Dimension| 32mm(L) x 35mm(W) x 15.2mm(H)
Weight| 13.5g

Dimensions

Package

1. SpeedyBee F405 Mini Flight Controller x 1
2. SpeedyBee 35A BLHeliS Mini V2 4-in-1 ESC x 1
3. Manual & App Download Card x 1
4. 35V 470uF Capacitor x 1
5. 8pin JST cable(For FC & ESC Connection） x 1
6. DJI 6-pin Cable(80mm) x 1
7. XT30 Power Cable(Length: 7cm) x 1

M2 Accessories

1. M2 Silicone O-Ring x 5
2. M2 Nylon Hex Nut x 5
3. M2(Hole Diameter) 7.6mm(Height) Anti-vibration Silicone Grommets x 9 M2(Diameter) 25mm(Length) Screw x 4
4. M2(Diameter) * 20mm(Length) Screw x 4

M3 Accessories

• M3 Silicone O-Ring x 5
• M3 Nylon Hex Nut x 5
• M3(Hole Diameter) * 6.6mm(Height) Anti-vibration Silicone Grommets x 9
• M3(Diameter) * 25mm(Length) Screw x 4
• M3(Diameter) * 20mm(Length) Screw x 4

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.

SpeedyBee F405 Mini 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 controlled by the flight controller firmware.

BOOT Button

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/INAV configurator on the PC, go to the ‘Firmware Flashing’ page, choose the target ‘SPEEDYBEEF405MINI’ and flash.

FC’s Peripheral Connection

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.

Cable Connection vs DJI O3 Air Unit
Use the DJI 6-pin cable(80mm) that comes with the F405 Mini stack(See the accessory No.6 in the package section). Cut off the 8-pin connector and keep the 6-pin connector.Use the 6-pin connector to connect to the DJI O3 Air Unit, and then solder the other end to the flight controller.

Cable Connection vs RunCam Link/ Caddx Vista Air Unit
Use the DJI 6-pin cable(80mm) comes with the F405 Mini stack(See the accessory No.6 in the package section). Cut off the connectors on both ends and solder the 6 wires.

Cable Connection vs DJI Air Unit V1
Use the DJI 6-pin cable(80mm) comes with the F405 Mini stack(See the accessory No.6 in the package section). Cut off the 6-pin connector and keep the 8-pin connector. Use the 8-pin connector to connect to the DJI Air Unit V1, and then solder the other end to the flight controller.

Important notice for 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 flight 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 controller from properly recognizing the flight receiver. 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 part of the wire carefully.

Important notice for ELRS receiver
We recommend connecting the ELRS receiver’s TX and RX to the T2 and R2 pads on the flight controller. However, when using the DJI Air Unit simultaneously, some ELRS receivers may not be recognized properly by the flight 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 part of the wire carefully.

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 Mini 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 the Betafight/INAV configurator on your PC. Take the Betaflight configurator as an example, go to the ‘Firmware Flashing’ page, choose the target ‘SPEEDYBEEF405MINI’ and flash.

Specifications

BLE Bluetooth

| Supported. Used to connect with the SpeedyBee App for flight controller and ESC parameter configuration. Please make sure the MSP switch on UART 4 is turned on and set to a baud rate of 115200, otherwise Bluetooth functionality will not be available.
WIFI| Not supported

Wireless FC Firmware Flashing

| NOT Supported.

Please connect to the Betaflight configurator on the PC to do FC firmeare update.

Wireless Blackbox Dwonload & Analysis| NOT Supported.

Please connect to the Betaflight configurator on the PC to do blackbox analysis.

DJIAir Unit Connection Way| Direct soldering

DJI Air Unit Compatibility

| Compatible with all DJI Air Units: DJI O3/RunCam Link/Caddx Vista/DJI Air Unit V1. Please use the solder pads <9V, G, T1, R1, G, SUBS(R2)> on the front right corner of the flight controller to make a pin-to-pin connection with the solder pads on the DJI Air Unit.

UART1(T1, R1) is used for OSD and SUBS(R2) is used for DJI Air Unit’s internal SBUS receiver signal input.

Blackbox| 8MB Onboard Flash

BetaFlight Camera Control Pad

|

Yes(CC pad on the front side)

Current Sensor Input

|

Supported. For SpeedyBee BLS 35A V2 ESC, please set Scale=250 and Offset=-500.

Power Input

|

3-6S LiPo. The flight controller is powered through the G, V wires of the 8pin harness or G, V pads from the bottom side of the flight controller.

5V Output

|

4 groups of 5V output, three +5V pads and 1 BZ+ pad( used for Buzzer) on front side. The total current load is 2A.

9V Output

|

1 group of 9V output, one +9V pad on front side. The total current load is 3A.

3.3V Output

| Supported. Soldering pad named ‘3V3’ on the front top of the flight controller. Designed for 3.3V input receivers. Up to 500mA current load.

4.5V Output

| Supported. Designed for radio receiver and GPS module even when the FC is powered through the USB port. Up to 1A current load.

ESC Signal

|

M1 – M4 wires or soldering pads on bottom side.

UART

| 6 sets(UART1, UART2, UART3, UART4(Dedicated for Bluetooth connection)), UART5(Dedicated for ESC telemetry),UART6

ESC Telemetry

|

UART R5(UART5)

I2C

|

Supported. DA & CL 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 LEDs controlled by the Betaflight firmware.
Buzzer| BZ+ and BZ- pad used for 5V Buzzer

BOOT Button

| Supported. 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.
RSSI Input|

Not Supported

Smart Port / F.Port

| Not Supported
Supported Flight Controller Firmware|

BetaFlight(Default), INAV

Firmware Target Name

| SPEEDYBEEF405MINI

Mounting

|

20 x 20mm  3.5mm hole diameter，Compatible with M2 and M3 screws/Silicone grommets.

Dimension

|

30(L) x 32(W) x 7.8(H)mm

Weight| 9.6g

SpeedyBee BLS 35A Mini V2 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
You could use the SpeedyBee app to completely configure this 8-bit ESC for both BLHeli_S or Bluejay firmware. The steps are as follows:

ESC Firmware Update
This 8-bit 50A ESC can run BLHeliS or Bluejay firmware. It is loaded with BLHeliS firmware by default. You could also flash it to Bluejay firmware which can support RPM filtering and Bi-directional Dhsot

Firmware flashing steps are as follows:

• Remove all the propellers from your drone.
• Ensure that the flight controller is connected properly to the ESC, then power up the drone. This step ensures that the ESC starts up correctly.
• Connect the flight controller to the computer using a USB Type-C cable.
• Open the Chrome browser and visit the following website: https://www.esc-configurator.com/
• Follow the firmware flashing steps as shown in the screenshots below.

Important note:
On the 6th interface, the “ESC” type must be selected as “J-H-40”.

Specifications

Mounting

| 20 x 20mm 3.5mm hole size，compatible with M2 and M3

screws/Silicone grommets.

Dimension| 35 35 5.5mm
Weight| 7.2g

References

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

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