SpeedyBee F405 Mini 35A Stack

The SpeedyBee F405 Mini proves that you don’t have to sacrifice features for size. This 20x20mm stack is engineered for pilots who want a clean, “cable-free” maintenance experience. Thanks to the built-in Bluetooth chip, you can connect to the SpeedyBee App on your smartphone to tune PIDs, change motor directions, or adjust Betaflight settings right at the field.

Unlike other mini stacks, the F405 Mini includes an onboard barometer, making it a perfect candidate for INAV or Betaflight altitude-hold features. The 35A ESC is built with a TVS protective diode to absorb voltage spikes, ensuring your electronics stay safe even during aggressive 4S or 6S maneuvers.

Key Performance Highlights:

• Wireless Bluetooth Tuning: No more hunting for micro-USB cables. Configure your FC and ESC wirelessly using your phone.

• DJI O3 Ready: Features a dedicated plug-and-play port for DJI Air Units, making HD digital builds faster and cleaner than ever.

• Onboard Barometer: Provides accurate altitude data, essential for long-range cruising and GPS rescue stability.

• High-Current 35A ESC: A robust 4-in-1 ESC that supports up to 6S power (recommended for 2-4″ aggressive quads or 5″ lightweight builds).

• Smart Battery Indicator: Features a 4-level LED display on the board, allowing you to check your battery voltage at a glance.

• Dual BEC System: Provides stable 5V (2A) for your receiver/LEDs and 9V (3A) specifically for your video transmitter or DJI system.

Technical Specifications:

• Mounting: 20 x 20mm (3.5mm hole diameter)

• FC MCU: STM32F405

• Gyro: ICM42688P

• Barometer: Built-in

• UARTs: 4 Sets

• ESC Current: 35A Continuous | 45A Burst

• ESC Firmware: BLHeli_S (Supports Bluejay for bidirectional DShot)

• Input Voltage: 3-6S LiPo

• Dimensions: 30 x 32 x 13.5 mm

• Weight: 13.9g (FC + ESC combined)