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Description
The SpeedyBee F4 3-6S 20x20 Stack/Combo (F405 FC / 35A 8bit 4in1 ESC)! Experience feature-rich performance and an unbeatable price for a 20x20 stack. Utilizing an upgraded F405 flight controller chip with better performance than the F411, it features a built-in Bluetooth chip for seamless wireless Betaflight tuning. The board comes with a 4-level battery voltage display, built-in barometer, and supports connectivity to all DJI Air Units. It offers 4 available UART ports, and a dual BEC setup with 5V 2A and 9V 3A outputs. This ESC provides four synchronized outputs with a continuous current of 35A, delivering strong power to drive all 2-4 inch and lightweight 5-inch quadcopters via 4-6S battery. Equipped with a TVS transient suppression diode onboard, it better absorbs surge voltage, providing enhanced protection for the ESC.
Check out all our 20x20 stacks, and our SpeedyBee products!
Features
- User Manual
- DJI compatible
- Feature-rich
- Budget-friendly price point
- Compatible with M2 and M3
Specifications
- Product Name: SpeedyBee F405 Mini BLS 35A 20x20 Stack
- Flight Controller: SpeedyBee F405 Min
- ESC: SpeedyBee BLS 35A Mini V2 4-in-1 ESC
- 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 Download & 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 14.2mm(H)
- Weight: 13.5g
- 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 Download & 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
- Firmware: BLHeli_S J-H-40
- Continuous Current: 35A x 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 x 35 x 5.5mm
- Weight: 7.2g
Includes
- 1x SpeedyBee F4 3-6S 20x20 Stack/Combo (F405 FC / 35A 8bit 4in1 ESC)
Wiring Diagram
