HAKRC F4520 V2 Flight Controller for FPV Drone – STM32F405, 5 UART, 20x20mm, 2–6S Input, DJI Plug

The HAKRC F4520 V2 Flight Controller is a compact and powerful FC designed for FPV drone builders seeking stable performance and seamless DJI integration. Built around the STM32F405RET6 processor and ICM42688 gyroscope, this board offers precise flight control and strong anti-interference performance, making it ideal for both freestyle and racing applications.

Key Features

• Reliable F4 Architecture

  • Powered by STM32F405RET6, offering solid processing capability

  • Integrated ICM42688 gyro ensures accurate and responsive flight stabilization

• Compact & Efficient

  • 29×29mm board size with 20×20mm mounting hole spacing

  • Lightweight design, only 6g net weight

  • 2–6S LiPo wide input voltage support for various drone builds

• Dual BEC Outputs

  • Provides 5V/2.5A and 10V/2A for powering peripherals like VTX, LEDs, and receivers

• Blackbox & Connectivity

  • Built-in 16MB Blackbox for advanced flight data logging

  • 5 UART ports for flexible expansion with GPS, receiver, telemetry, and more

• DJI Plug & Play Ready

  • Comes with solder-free DJI Air Unit connection cable for hassle-free digital FPV setup

• Custom LED and VTX Control

  • Supports external 10V LED strip with switchable channel control

  • VTX power can be toggled via switch channel for on-ground adjustments

Specifications

Packing List

• 1 × HAKRC F4520 V2 Flight Controller

• 4 × M2 Shock Absorbers

• 1 × 8-pin Cable

• 1 × DJI FPV Cable

• 1 × DJI O3 Air Unit 3-in-1 Cable

• 1 × Instruction Manual

Details

HAKRC F4520V2 flight controller wiring diagram. Includes ESC, barometer, GPS, SBUS receiver, VTX, camera, and control switch connections. Highlights 10V power supply and battery power options for video transmission.

HAKRC F4520 V2 Flight Controller with ARM STM32F405 chip, featuring multiple connection points and integrated components for drone use.

HAKRC F4520 V2 Flight Controller with USB port and mounting holes.

HAKRC F4520 V2 Flight Controller with ARM chip and labeled pins.