| MCU |
STM32F405 |
| 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 |
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