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SpeedyBee F405 V4 BLS 55A 30×30 Stack

(2 customer reviews)

Blast through freestyle or racing with full 6S power. Configure motors wirelessly—no computer, just your phone.

Original price was: $162.99.Current price is: $139.99.

Out of stock

SKU: 1441

Description

The SpeedyBee F405 V4 BLS 55A 30×30 Stack delivers powerful 6S performance with a real 55A output, robust BB21 MCU, and premium Japan-made filtering capacitors for smooth, reliable flights. The built-in Bluetooth and SpeedyBee app let you wirelessly configure motor directions and FC/ESC settings—no PC required—making it the ultimate upgrade for racers and freestyle pilots who demand peak power, easy setup, and total control anywhere, anytime.

Specifications:

  • Product Name: SpeedyBee F405 V4 30×30 Flight Controller

  • MCU: STM32F405
  • IMU (Gyro): ICM42688P

  • USB Port Type: Type-C

  • Barometer: Built-in

  • OSD Chip: AT7456E

  • BLE Bluetooth: Supported (UART4 @ 115200 baud for FC configuration)

  • WiFi: Not supported

  • DJI Air Unit Connection:

    • 6-pin connector or direct soldering

    • Fully compatible with DJI O3 / RunCam Link / Caddx Vista / DJI Air Unit V1

  • 6-pin DJI Plug: Supported (no rewiring needed)

  • Blackbox (MicroSD Slot):

    • Supports SDSC/SDHC (≤32GB)

    • Must be FAT16 or FAT32 formatted

    • Max 4GB usable in Betaflight

    • SDXC (U3) cards not supported

  • Current Sensor Input: Supported (Scale = 400, Offset = 0 with SpeedyBee BLS 55A ESC)

  • Power Input: 3S–6S LiPo (via 8-pin connector or bottom pads)

  • 5V Output:

    • 9 groups total

    • 4x +5V pads

    • 1x BZ+ pad (for buzzer)

    • 4x LED 5V pads

    • Max current: 3A

  • 9V Output:

    • 2 groups (1 pad front, 1 via bottom connector)

    • Max current: 3A

  • 3.3V Output: Supported (for 3.3V receivers, up to 500mA)

  • 4.5V Output: Supported (for receivers/GPS, up to 1A, works via USB)

  • ESC Signal Pads:

    • M1–M4 (bottom side)

    • M5–M8 (front side)

  • UART Ports:

    • 6 total: UART1, UART2, UART3, UART4 (Bluetooth), UART5 (ESC telemetry), UART6

  • ESC Telemetry: UART R5 (UART5)

  • I2C Support: SDA & SCL pads (front side, for magnetometer/sonar)

  • Betaflight LED Pad: Supported (5V, G, LED pads for WS2812)

  • Buzzer: BZ+ and BZ- pads for 5V buzzers

  • BOOT Button:

    • Hold + power on = DFU mode (firmware recovery)

    • Short press = Cycle LED display mode

    • Long press = Switch SpeedyBee LED ↔ Betaflight LED mode

  • RSSI Input: Supported (RS pad on front side)

  • Smart Port / F.Port: Not supported

  • Supported Firmware: Betaflight (default), INAV

  • Firmware Target: SPEEDYBEEF405V4

  • Mounting Pattern: 30.5 x 30.5mm (4mm hole diameter)

  • Dimensions: 41.6 x 39.4 x 7.8 mm

  • Weight: 10.5g

Product Name: SpeedyBee BLS 55A 30×30 4-in-1 ESC

  • Firmware: BLHeli_S J-H-40

  • PC Configurator: ESC Configurator

  • Continuous Current: 55A x 4

  • Burst Current: 70A (10 seconds)

  • TVS Protective Diode: Yes

  • External Capacitor: 1000uF Low ESR (included)

  • ESC Protocols: DSHOT300, DSHOT600

  • Power Input: 3–6S LiPo

  • Power Output: VBAT

  • Current Sensor: Supported (Scale = 400, Offset = 0)

  • ESC Telemetry: Not supported

  • Mounting Pattern: 30.5 x 30.5mm (4mm hole diameter)

  • Dimensions: 45.6 x 44 x 8 mm

  • Weight: 23.5g

Package Includes:

  • 1 x SpeedyBee F405 V4 Flight Controller
  • 1 x M3*8mm Silicone Grommets (for FC)
  • 1 x SH 1.0mm 25mm-length 8pin Cable (for FC-ESC connection)
  • 1 x DJI 6pin Cable (80mm)

2 reviews for SpeedyBee F405 V4 BLS 55A 30×30 Stack

  1. Sarah Davis (verified owner)

    Can’t wait to get this “zipped” into place

  2. Finn Masters (verified owner)

    Great budget stack for any build

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