SpeedyBee F405 Mini BLS 35A 20x20 Combo Stack

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SpeedyBee F405 Mini BLS 35A 20x20 Combo Stack

SpeedyBee F405 V3 STACK



ProductName SpeedyBee F405 20x20 Mini Flight Controller
IMU(Gyro) ICM42688P
USB Port Type Type-C
Barometer Built-in
OSD Chip AT7456E chip
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.
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.
WIFI Not supported
DJI Air 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




Product Name SpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESC
Firmware BLHeli_S J-H-40
Continuous Current 35A * 4
Burst Current 45A(5seconds)
ESC Protocol DSHOT300/600
Power Input 3-6S LiPo
Power Output VBAT(Battery voltage, used to power the flight controller)
Current Sensor Support (Scale=250 Offset=-500)
Mounting 20 x 20mm ∅3.5mm hole size,compatible with M2 and M3 screws/Silicone grommets.
Dimension 35 * 35 * 5.5mm
Weight 7.2g



Package Contents

  • 1 x Combo Stack
  • 1 x Accessory Bag
10.00 (cm)
2.00 (cm)
0.50 (cm)