SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack
SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack - Image 2
SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack - Image 3
SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack - Image 4
SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack - Image 5
SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack - Image 6
SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack - Image 7
SKU: DRFC-2025
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SpeedyBee SB-F4V3-50-STACK Flight Controller & 50A 4-in-1 ESC Stack

₹6,629.00 (Inclusive of all taxes)
Out of Stock

The SpeedyBee SB-F4V3-50-STACK integrates an STM32F405 flight controller with a 50A 4-in-1 ESC, featuring a BMI270 gyro, built-in barometer, and dedicated DJI Air Unit connector for streamlined digital FPV builds. It runs Betaflight by default and supports wireless configuration via Bluetooth.

Features

  • STM32F405 MCU & BMI270 Gyro for high-performance flight processing.
  • 50A 4-in-1 ESC with TVS diodes, TDK capacitors, and external 1500uF low-ESR cap.
  • Built-in barometer, 4GB SD card slot, and dedicated DJI Air Unit plug.
  • Type-C USB, Bluetooth for wireless SpeedyBee app configuration, and 4 UARTs.
  • Dual BEC outputs: 9V 2A and 5V 2A for powering peripherals.

Out of stock

Description

The SpeedyBee SB-F4V3-50-STACK is a high-integration flight control system built around the robust STM32F405 microcontroller and a precise BMI270 inertial measurement unit. This combination delivers superior processing headroom and stable gyro data for demanding Betaflight, Emuflight, or INAV configurations. The stack is designed for durability and clean power delivery, critical for digital HD and high-performance analog setups.

Its paired 50A 4-in-1 ESC utilizes premium components including TVS protective diodes and Japan-made TDK SMT capacitors, supplemented by an external 1500uF low-ESR capacitor to ensure smooth voltage under high throttle loads. The flight controller’s feature set, including a built-in barometer for altitude hold, four UARTs for expansive peripheral support, and a dedicated connector for DJI digital video systems, makes it a versatile foundation for 5-inch racing, freestyle, and long-range builds.

Key Features

  • High-Performance Core: STM32F405 MCU provides ample processing power for advanced flight firmware features and future updates.
  • Premium Gyro: Integrated BMI270 gyroscope offers low-noise, high-resolution data for precise flight control and filtering.
  • Robust Power Design: ESC incorporates TVS diodes for surge protection, high-quality TDK capacitors, and an external 1500uF capacitor for stable voltage under dynamic loads.
  • Digital-FPV Ready: Includes a dedicated plug and cable for seamless integration with DJI Digital FPV Air Units, simplifying wiring.
  • Convenient Telemetry & Logging: Supports SmartAudio/SmartPort telemetry on any UART TX pad and includes a microSD slot for up to 4GB of Blackbox flight data logging.
  • Wireless Configuration: Built-in Bluetooth module enables wireless tuning and setup directly from the SpeedyBee mobile application.
  • Flexible Power Distribution: Independent 9V 2A and 5V 2A BEC outputs reliably power VTXs, cameras, receivers, and GPS modules.
  • Complete Mounting Kit: Package includes all necessary silicone grommets, standoffs, and hardware for vibration-damped installation.

Applications

  • 5-inch FPV Racing Drones requiring high-current ESCs and precise flight control.
  • Freestyle Quadcopters utilizing digital HD systems like DJI FPV for low-latency video.
  • Long-Range or Cinematic Builds needing barometric altitude hold and extensive UARTs for GPS/telemetry.
  • High-Performance 3-6S Builds where clean power delivery and robust ESC components are critical.

Technical Specifications

Item TypeFlight Controller & ESC Stack
Flight Controller MCUSTM32F405
Gyro (IMU)BMI270
ESC Current Rating50A Continuous (4-in-1)
USB PortType-C
BarometerBuilt-in
OSD ChipAT7456E
Wireless ConnectivityBluetooth (for configuration)
Blackbox StoragemicroSD Slot (supports up to 4GB)
UART Serial Ports4
BEC Outputs9V 2A, 5V 2A
Special ConnectorsDedicated DJI Air Unit Plug
Supported FirmwareBetaFlight (Default), Emuflight, INAV
Mounting Pattern30.5x30.5mm

Frequently Asked Questions

What firmware does this SpeedyBee stack come with, and what other firmwares are compatible?

The SpeedyBee SB-F4V3-50-STACK is pre-flashed with Betaflight as the default firmware. It is also fully compatible with Emuflight and INAV flight control software. The STM32F405 MCU provides ample resources for feature-rich configurations in any of these supported firmwares.

How do I configure the flight controller wirelessly?

The stack features a built-in Bluetooth module. You can connect to it using the SpeedyBee mobile application (available for iOS and Android) to adjust PID tunes, rates, and other settings without a USB cable. Ensure the flight controller is powered via battery for Bluetooth to be active.

Does this stack have a dedicated port for DJI Digital FPV Systems?

Yes, it includes a dedicated plug and an 80mm cable specifically for connecting DJI Air Units or CaddxFPV Vista/Vista Nebula systems. This simplifies wiring and provides clean power and data connection directly from the flight controller, eliminating the need for separate wiring to the VTX.

What is the purpose of the external capacitor included in the package?

The included 35V 1500uF low-ESR capacitor is designed to be soldered across the main battery input pads on the ESC. It acts as a buffer, smoothing out voltage spikes and electrical noise generated by the motors, which protects sensitive components like the flight controller and video system and results in cleaner video feed.

What voltage range does the 50A ESC support, and what BEC outputs are available?

The 4-in-1 ESC is designed for 3-6S LiPo battery input (approximately 12V to 25.2V). It provides two independent regulated BEC outputs: a 9V 2A rail (ideal for most video transmitters) and a 5V 2A rail (for the flight controller, receiver, and most cameras or peripherals).

Package Includes

  • 1 x SpeedyBee F405 V3 Flight Controller
  • 1 x SpeedyBee BLS 50A 4-in-1 ESC
  • 1 x 35V 1500uF Low ESR Capacitor
  • 1 x M3 Nylon Nut
  • 5 x M3 Silicone O-Rings
  • 5 x M3*8mm Silicone Grommets (for FC)
  • 5 x M3*8.1mm Silicone Grommets (for FC)
  • 1 x SH1.0 8-pin Cable (15mm length, for FC-ESC connection)
  • 5 x M3*30mm Inner Hexagon Screws
  • 1 x DJI 6-pin Cable (80mm length)
  • 1 x XT60 Power Cable (70mm length)

Additional Information

Weight 0.092 kg
Dimensions 6 × 12 × 3 cm

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