Review: Flywoo GOKU F722 Pro V2 FC/ESC Stack – 30.5×30.5mm and 20x20mm Mini Flight Controller

by Oscar
Flywoo Goku F722 Pro V2 Fc Flight Controller Esc Stack

In this post, I will share my thoughts on the Flywoo GOKU F722 Pro V2 flight controller stack, available in both full size (30.5×30.5mm) and mini (20x20mm) versions. These stacks differ not only in mounting patterns but also in ESC type. Let’s dive into these new stacks and see how they compare to competitors like the Speedybee and GEPRC Taker budget stacks.

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Learn more about flight controllers in my buyer’s guide: https://oscarliang.com/flight-controller/

Where to Buy?

You can purchase the Flywoo GOKU F722 Pro V2 Stack from:

Flywoo Goku F722 Pro V2 Fc Flight Controller Esc Stack Unbox Accessories

The Mini 20x20mm Stack:

Flywoo Goku F722 Pro Mini V2 Fc Flight Controller Esc Stack Unbox Accessories

Both stacks come with a comprehensive package, including multiple pin cables with JST connections, rubber spacers, and O-rings, making them ready for various setups.

Specifications

Here are the detailed specs for both the GOKU F722 Pro V2 stacks (30.5×30.5mm full size and 20x20mm mini).

Specification GOKU F722 PRO V2 Stack GOKU F722 PRO Mini V2 Stack
Flight Controller
Firmware (Betaflight) FLYWOO F722PRO FLYWOO F722PROV2
Firmware (INAV) FLYWOO F722PRO FLYWOO F722PRO
MCU STM32 F722 STM32 F722
Gyroscope MPU6000 ICM42688
OSD AT7456E AT7456E
Barometer DP310 DP310
Blackbox 16MB 16MB
UART 6 6
Motor Outputs 8 8
i2c SDA SCL Yes Yes
Input Voltage 7.4V-26V/2-6S LiPo 7.4V-26V/2-6S LiPo
BEC 10V@3A, 5V@3A, 4.5V@?A, 3.3V@?A 10V@2A, 5V@2A, 4.5V@?A
Size 37mm x 37mm x 8mm 32mm x 29mm x 20mm
Mounting Holes 30.5×30.5mm (M3) 20x20mm (M2)
Weight 10.6g 6.3g
ESC
ESC Name GOKU 506S 8bit 50A ESC GOKU G45M AM32 4in1 ESC
Supported Firmware BLHeli_S and Bluejay AM32
Firmware Target N/A GOKU_F4A32_PRO
Continuous Current 50A 45A
Burst Current 55A 50A
Input Voltage 2-6S LiPo 2-6S LiPo
ESC Protocols DShot300, DShot600 Dshot300, Dshot600, Dshot1200
PWM Frequency 24kHz, 48kHz, 96kHz 24kHz-128kHz
Current Sensor YES YES
BEC Output NO NO
Mounting Hole 30.5×30.5mm (M3) 20x20mm (M2)
Dimensions 42×42×4mm 33x30x6.1mm
Weight 12.8g 6.8g

Differences Between Speedybee and Flywoo

Here’s a comparison table between the GOKU F722 Pro V2 (full size) and Speedybee F405 V4 stacks.

Specification GOKU F722 PRO V2 Stack Speedybee F405 V4 Stack
Price $79.99 $65.99
Flight Controller
INAV Support Yes Yes
MCU STM32 F722 STM32 F405
Gyroscope MPU6000 ICM42688P
OSD AT7456E AT7456E
Barometer DP310 BMP280
Blackbox 16MB Memory SD Card Slot
UARTS 6 6
Input Voltage 2S-6S LiPo (7.4V-26V) 3S-6S LiPo
Motor Outputs 8 8
i2c Connection Yes Yes
BEC 10V@3A, 5V@3A, 4.5V@?A, 3.3V@?A 5V@3A, 9V@3A, 4.5V@1A, [email protected]
Size 37mm x 37mm x 8mm 41.6x 39.4x 7.8mm
Mounting Holes 30.5×30.5mm (M3) 30.5×30.5mm (M3)
Weight 10.6g 11.2g
ESC
ESC Name GOKU 506S 8bit 50A ESC SpeedyBee BLS 55A 4-in-1 ESC
Supported Firmware BLHeli_S and Bluejay BLHeli_S and Bluejay
Firmware Target N/A J-H-40
Continuous Current 50A 55A
Burst Current 55A 70A
Input Voltage 2-6S LiPo 3-6S LiPo
ESC Protocols DShot300, DShot600 Dshot300, Dshot600
PWM Frequency 24kHz, 48kHz, 96kHz 24kHz, 48kHz, 96kHz
Current Sensor YES YES
BEC Output NO NO
Mounting Hole 30.5×30.5mm (M3) 30.5×30.5mm (M3)
Dimensions 42×42×4mm 45.6x44x8mm
Weight 12.8g 23.5g

Closer Look at the GOKU F722 Pro V2

From the specs, the GOKU F722 Pro V2 offers all the modern features you’d want on a flight controller.

Flywoo Goku F722 Pro V2 Fc Flight Controller Top

Aesthetically, it is appealing with its white PCB. It features JST connectors on the top of the board and solder pads on the bottom, offering a versatile solution for different build preferences.

Flywoo Goku F722 Pro V2 Fc Flight Controller Bottom

However, placing the solder pads on the bottom makes it harder to work with for those who prefer soldering. Unless you frequently need to replace components in the field, JST connectors might not offer significant benefits over direct soldering.

The board includes a barometer, useful for INAV firmware, and 16MB of memory for Blackbox recording, which is beneficial for tuning.

Flywoo Goku F722 Pro V2 Fc 506s 8bit 50a 4in1 Esc Bottom

Flywoo Goku F722 Pro V2 Fc 506s 8bit 50a 4in1 Esc Top

Flywoo Goku F722 Pro V2 Fc Flight Controller Esc Stack Manual Pinout Diagram

Is F7 Better Than F4?

In short, it really doesn’t matter which processor you use, the difference between F722 and F405 doesn’t significantly impact flight performance for most pilots currently. F722 offers more processing power, supporting higher speeds like 8K PID loop and DShot600 while F405 only supports 4K PID Loop and DShot300. However, the practical benefits in flight of the faster PID loop are minimal.

The F405’s larger memory (1MB) actually might make it more future-proof than the F722 (512KB) as firmware sizes grow, despite being a slower processor. Note that Betaflight’s new cloud build system helps manage firmware size, extending the lifespan of processors with smaller memory, so F722 will still be supported in the foreseeable future.

To learn more about FC processors, go to this link: https://oscarliang.com/f1-f3-f4-flight-controller/

How Does Flywoo Compare to Speedybee?

While the Flywoo GOKU F722 Pro V2 and Speedybee F405 V4 stacks are similar in capabilities, the Speedybee stack is $14 cheaper and offers a more robust ESC on paper, with higher current ratings. The Speedybee stack undoubtedly offers better value.

However, the Flywoo stack has its advantages:

  • The MPU6000 Gyro is preferred by many for its clean performance and ease of tuning.
  • JST connectors reduce the need for soldering, simplifying peripheral connections.
  • Onboard memory for Blackbox logging is convenient, while on the Speedybee you’ll need a micro SD card.
  • F7 FCs simplify signal inversion for Frsky receivers, although this is less relevant for ExpressLRS users.

You can purchase the Flywoo GOKU F722 Pro V2 Stack from:

Flywoo Goku F722 Pro V2 Fc Flight Controller Esc Stack

The Mini 20x20mm Stack:

Flywoo Goku F722 Pro Mini V2 Fc Flight Controller Esc Stack

Full Size or Mini Stack?

The GOKU F722 PRO Mini V2 Stack, with its 45A ESC, is suitable for most freestyle 5″ FPV drones. It is $4 cheaper, smaller, and lighter than the full-size stack. Additionally, it uses a 32-bit ESC running AM32 firmware, which offers higher PWM frequency selection up to 128KHz, although this is not particularly relevant for 5″ drones that typically use 24KHz or 48KHz.

Another consideration is the gyro: the full-size FC uses the MPU6000, while the Mini FC uses the ICM42688-P.

However, the full-size stack provides more real estate, making it easier to work with for soldering and repairs. Additionally, the ESC has larger FETs and better heat dissipation, both are signs of a more reliable ESC. If you are building a powerful drone, the full-size stack might be the better choice.

Flywoo Goku F722 Pro Mini V2 Fc Flight Controller

Flywoo Goku F722 Pro Mini V2 Fc G45m Am32 4in1 Esc

Flywoo Goku F722 Pro Mini V2 Fc Flight Controller Esc Stack Manual Pinout Diagram

Conclusion

I’m pleased to see the market offering more budget-friendly FC stacks with diverse features. The Flywoo GOKU F722 Pro V2 Stack is an appealing option, providing robust capabilities and thoughtful design with top notch build quality. I hope this review helped you choose between the full size and mini versions, and the Speedybee F405 V4 stacks.

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4 comments

Sid 17th June 2024 - 11:58 pm

Is it correct that it is the same firmware name for both controllers for INAV (FLYWOO F722PRO /FLYWOO F722PRO), but different for Betaflight (FLYWOO F722PRO/FLYWOO F722PROV2)?

Reply
Oscar 20th June 2024 - 4:21 pm

That’s what Flywoo is saying.

Reply
Marco 17th June 2024 - 5:05 pm

Hey Oscar,

Great article! I just have one question: Is the pigtail in the Mini Stack an XT60 or an XT30?

Reply
Oscar 17th June 2024 - 5:48 pm

it’s XT60.

Reply