SpeedyBee F405 Mini BLS Stack (35A / 20x20 / BLHeli_S / 3-6S)

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.

35A 4-in-1 BLHeliS Mini ESC: 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.

SPECIFICATIONS:

Flight Controller:

• Input Voltage: 3-6S LiPo
• MCU: STM32F405
  
• IMU (Gyro): ICM42688P
  
• USB Port Type: Type-C
  
• Barometer: Built-in
  
• BLE Bluetooth: Supported for connecting with the SpeedyBee App
  
• WIFI: Not supported
  
• DJI Air Unit Compatibility: Compatible with DJI Air Units
  
• ESC Signal: M1 - M4 wires or soldering pads
  
• UART: 6 sets (including UART4 for Bluetooth)
  
• Blackbox: 8MB onboard flash
  
• Power Input: 3-6S LiPo
  
• Mounting: 20 x 20mm, compatible with M2 and M3 screws
  
• Dimensions: 30mm (L) x 32mm (W) x 7.8mm (H)
  
• Weight: 9.6g

ESC:

• Input Voltage: 3-6S LiPo
• Firmware: BLHeli_S J-H-40
  
• Continuous Current: 35A * 4
  
• Burst Current: 45A (5 seconds)
  
• 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)
  
• ESC Telemetry: Not supported
  
• Mounting: 20 x 20mm, ∅3.5mm hole size, compatible with M2 and M3 screws/Silicone grommets
  
• Dimensions: 35 * 35 * 5.5mm
  
• Weight: 7.2g

HELPFUL LINKS:

• Manual
• Wire Diagram

INCLUDES:

(1) SpeedyBee F405 V3 20x20 Flight Controller
(1) SpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESC
(5) M2 Silicone O-Ring
(5) M5 Silicone O-Ring
(5) M2 Anti-Vibration Silicone Grommets
(5) M3 Anti-Vibration Silicone Grommets
(1) 8-Pin JST Cable 25mm
(1) 35V 470uf Capacitor

NOTES: 

• Manufacturer upgrades, alterations, and processor/firmware changes are frequently made without prior notice. Exact specifications, photos, and links cannot be guaranteed.