SpeedyBee F7 Mini 35A 3-6S 8-bit FC Stack for FPV Drones

Introduction

The SpeedyBee F7 Mini 35A Stack is a high-performance flight controller and ESC combo designed for FPV drone enthusiasts. This compact, 20x20mm stack is a miniaturized version of the popular SpeedyBee F7, making it perfect for building smaller, more agile drones without compromising on power or features. It's engineered to support the SpeedyBee app for easy configuration and offers versatile video input options, including DJI Air Units and analog systems. Whether you're into FPV racing, freestyle, or cinematic flying, this stack provides a robust and reliable foundation for your next build.

Key Advantages

• Compact 20x20mm mounting for smaller drone builds.
• Powerful STM32F722 MCU for smooth flight control.
• Integrated 35A 4-in-1 BLHeli_S ESC supporting DSHOT300/600.
• Wide input voltage range: 3S to 6S LiPo batteries.
• Supports DJI Air Unit and analog video systems.
• Onboard 9V 2A BEC and 5V 2A BEC for powering peripherals.
• Bluetooth connectivity for convenient flight controller configuration via the SpeedyBee app.
• Durable construction with a flight-ready weight.

Technical Specifications

• Flight Controller Name: SpeedyBee F7 Mini
• MCU: STM32F722
• IMU (Gyro): BMI270 (current batches) / MPU6000 (older batches pre-May 2022)
• USB Port Type: Type-C
• Barometer: Not Applicable
• OSD Chip: AT7456E
• BLE Bluetooth: Supported (MSP 115200 baud on UART 6 required for configuration)
• WIFI: Not Supported
• Wireless FC Firmware Flashing: Not Supported (update via PC)
• Blackbox Download/Analyze: Not Supported (download/analyze on PC)
• DJI Air Unit Soldering Pads: Supported
• Flash (for BlackBox): 8MB
• Current Sensor: Supported (Scale=250 Offset=-500)
• BetaFlight Camera Control Pad: Yes (CC pad)
• Power Input: 3S - 6S LiPo
• 5V Output: 6 groups (5x +5V pads, 1x BZ+ pad); Total current load 2.5A
• 9V Output: 2 groups; Total current load 2A
• 3.3V Output: Supported; Current load up to 500mA
• ESC Signal Pads: M1 - M4
• UARTs: 3x Full UARTs (UART1, UART2, UART3)
• ESC Telemetry UART: R4 (UART4)
• I2C: Not Supported
• LED Pad: For WS2812 LEDs
• Buzzer: BZ+ and BZ- pads for 5V buzzer
• BOOT Button: For DFU mode entry
• RSSI Input: Not Supported
• SmartPort: Use any UART TX pad
• Supported Flight Controller Firmware: BetaFlight (default)
• Firmware Target Name: SPEEDYBEEF7MINIV2 (BMI270 gyro) / SPEEDYBEEF7MINI (MPU6000 gyro, pre-May 2022)
• FC Mounting: 20 x 20 mm, 3.5mm hole diameter
• FC Dimensions: 30 x 30 x 7.5 mm
• FC Weight: 5.7g
• ESC Firmware: BLHeli_S JH40
• Continuous Current: 35A * 4
• Burst Current: 45A (5 seconds)
• ESC Protocol: DSHOT300/600
• ESC Power Input: 3-6S LiPo
• ESC Power Output: VBAT
• ESC Current Sensor: Support (Scale=250 Offset=-500)
• ESC Mounting: 20x20mm, 3.6mm hole diameter
• ESC Dimensions: 35x35x5.5mm
• ESC Weight: 7g

Applications

This stack is ideal for building custom FPV drones, including racing drones, freestyle quads, and small cinematic platforms. Its compact size and robust performance make it suitable for builds where space and weight are critical factors. It's also compatible with both digital (DJI) and analog FPV systems.

Compatibility

Mounting: 20x20mm standard with 3.5mm/3.6mm hole diameters. Power: Supports 3S to 6S LiPo batteries. Video: Compatible with DJI Air Units and analog FPV cameras. Firmware: BetaFlight (default), programmable via USB-C or Bluetooth (with MSP enabled).

FAQ

What is the SpeedyBee F7 Mini 35A stack?

The SpeedyBee F7 Mini 35A stack is an integrated flight controller (FC) and Electronic Speed Controller (ESC) unit designed for FPV drones. It features a compact 20x20mm mounting pattern and supports 3S to 6S LiPo batteries, making it ideal for both racing and freestyle builds.

What are the key features of the SpeedyBee F7 Mini 35A stack?

Key features include the STM32F722 MCU, BMI270 gyro, 35A continuous current per motor from the 4-in-1 ESC, support for DJI Air Units and analog video, and Bluetooth connectivity for configuration via the SpeedyBee app.

What is the mounting size and compatibility of this FPV stack?

This stack uses a 20x20mm mounting pattern with 3.5mm/3.6mm hole diameters, making it compatible with most modern FPV drone frames designed for mini stacks. It supports 3S-6S LiPo input and various FPV video systems.

Can I use this SpeedyBee stack with DJI digital FPV?

Yes, the SpeedyBee F7 Mini 35A stack is designed with soldering pads that support direct connection to the DJI Air Unit, allowing you to build a drone with a digital FPV system.

Where can I buy the SpeedyBee F7 Mini 35A stack with fast delivery?

You can order the SpeedyBee F7 Mini 35A stack from HTDRONE, based in Poland. We offer fast shipping within Poland and reliable worldwide delivery via DHL, ensuring you get your FPV parts quickly.