HAKRC F405 45A Stack (45AF4 V2, 8Bit ESC) – STM32F405 FC + 4-in-1 45A 8Bit ESC (2–6S)

The HAKRC F405 45A Stack (45AF4 V2) is a reliable and high-performance solution for 2–6S FPV racing and freestyle drones. It integrates an STM32F405RET6 flight controller with an 8-bit 4-in-1 45A ESC, providing stable power delivery and fast signal response. This stack is ideal for pilots seeking a budget-friendly yet capable build, clearly distinguished from 32-bit ESC variants.

Key Features

• Flight Controller: STM32F405RET6 with ICM42688 gyro and 16MB flash memory

• ESC Architecture: 8-bit EFM8BB2 microcontroller

• ESC Current: 45A continuous / 50A peak

• Input Voltage: Supports 2–6S LiPo on both FC and ESC

• BEC Outputs: 5V/3A and 10V/2.5A for clean power supply

• Signal Protocols: PWM, Oneshot125/42, Multishot, DShot150/300/600

• Mounting: Standard 30.5×30.5mm FC; ESC supports 20×20mm and 30.5×30.5mm

• Firmware: FC – HAKRCF405V2 / ESC – BLHeliSuite16.7 (8bit version)

Flight Controller Specifications

ESC Specifications (8-bit)

Package Contents

• 1x HAKRC STM32F405 Flight Controller

• 1x HAKRC 45A 4-in-1 8Bit ESC

• M3 orange vibration dampers ×8

• 8P cable ×2

• LED 4P cable ×1

• CRSF Receiver 4P cable ×1

• DJI FPV cable ×1

• 35V 470uF capacitor ×1

• XT60 power cable ×1

• Red/Black power wires ×1 each

• M3×25mm screws ×4, black nuts ×4

• DJI Air Unit 3-in-1 cable ×1

• User manual ×1

Application

This stack is ideal for budget-conscious FPV pilots who need a reliable and powerful 2–6S solution without stepping up to 32-bit ESCs. Its 8-bit ESC architecture still delivers responsive throttle control and smooth power delivery for freestyle, racing, and cinematic drones.

Details

Hakrc F4530V2 flight controller wiring diagram. Includes ESCs, barometer, ICM-42688 dual gyroscope, SBUS receiver, VTX, GPS, TBS module, air unit, and external light with control switch. Detailed connections for setup.

Hakrc 8B45A ESC interface diagram. Dimensions: 44mm x 44mm, with M1, M2, M3, M4 ports and CN4321+-.

Hakrc Electronics F405 45A ESC kit includes ESCs, wires, connectors, screws, and a storage case.