SpeedyBee F405 Mini 20×20 (Pick ESC Or Flight Controller Or Stack) – MyFPV

Description

F405 Mini 20×20 (Pick ESC or Flight Controller or Stack)

Professional Performance in Miniature Form

The SpeedyBee F405 Mini 20×20 Stack packs full-sized features into a tiny package, combining an STM32F405 flight controller with 35A BLHeli_S ESCs for micro and lightweight FPV builds. This complete system delivers Bluetooth configuration, DJI Air Unit compatibility, and 8MB Blackbox logging in a compact 20x20mm footprint, making it ideal for toothpick, cinewhoop, and micro long-range builds.

Flight Controller Highlights

Core Components

• MCU: STM32F405 (Betaflight/INAV supported)

• Gyro: ICM-42688P for precise flight control

• OSD: AT7456E chip for clear on-screen display

• Barometer: Built-in for altitude hold functions

Smart Connectivity

• Bluetooth Configuration: Built-in BLE (UART4 @115200)

• DJI Air Unit Support: Direct solder pads for O3/Vista/Air Unit

• 8MB Onboard Blackbox: No SD card required

• USB Type-C: Fast firmware updates

Power Management

• Input Voltage: 3-6S LiPo

• 5V Output: 4 groups (2A total)

• 9V Output: 1 group (3A max)

• 3.3V/4.5V Output: For receivers and GPS

ESC Specifications

• BLHeli_S Firmware: J-H-40

• Continuous Current: 35A x4 (45A burst)

• Protocols: DSHOT300/600

• Current Sensor: Scale=250, Offset=-500

• Compact Design: 35×35×5.5mm (7.2g)

Key Features

Flight Performance

• ICM-42688P Gyro: Clean signals for smooth handling

• Betaflight Camera Control: Dedicated CC pad

• 6 UART Ports: Extensive peripheral support

Build Integration

• 20×20mm Standard Mounting: Fits micro builds

• Dual Screw Compatibility: M2/M3 options

• Optimized Stack Height: Just 14.2mm total