HAKRC F411 20A AIO Flight Controller – 2–5S, BLHeli_S 20A ESC, STM32F411, 25.5mm Mount

The HAKRC F411 20A AIO is a compact and efficient all-in-one flight controller with integrated 4-in-1 20A ESC, built for micro FPV drones and cinewhoops. Featuring an STM32F411CEU6 MCU, ICM42688 gyro, barometer, and AT7456E OSD, this AIO delivers reliable performance in a lightweight 31×31mm form factor.

Designed with 8-layer 2oz thick copper PCB and resin plug-hole technology, this board provides superior heat dissipation and current handling. It integrates Murata capacitors, industrial-grade LDOs, and 30V high-current imported MOSFETs, ensuring clean power delivery and long-term durability.

Key Features

• Compact 31×31mm all-in-one design

• STM32F411CEU6 processor with built-in AT7456E OSD

• ICM-42688 gyroscope and SPL06 barometer

• 25.5mm × 25.5mm / 26.5mm × 26.5mm mounting hole compatible

• Built-in 20A BLHeli_S ESC supporting 2–5S input

• Integrated current sensor and LED strip support (WS2812)

• Fully compatible with DJI FPV and O3 Air Unit

Flight Controller Specifications

ESC Specifications

Construction Quality

• 8-layer PCB with 2oz copper for maximum current handling

• Dual pad design for improved solder strength and heat dissipation

• High-end imported 30V MOSFETs with excellent load endurance

• Murata capacitors from Japan for stable and clean power filtering

• Industrial-grade LDOs, resistant to high temperature and voltage noise

Package Includes

• 1× HAKRC F411 20A AIO FC & ESC

• 4× M2 shock-absorbing mounting grommets

• 1× XT30 power lead

• 1× Velcro strap

• 1× Type-C USB adapter

• 1× USB cable

• 1× 270μF 35V capacitor

• 1× DJI FPV cable

• 1× DJI O3 Air Unit 3-in-1 cable

• 1× User manual

Ideal For

• 2–4 inch Cinewhoops

• Toothpick drones

• Lightweight FPV racing drones

• DJI O3 digital builds using 25.5x25.5mm or 26.5x26.5mm stacks