Compact 16×16 Stack — Space-saving design ideal for micro racing and freestyle drones.
Powerful 35A QUAD ESC — Delivers smooth, responsive power for aggressive flight.
DJI O3/O4 Compatibility — Direct plug-in support for digital FPV air units.
Advanced Sensors & Blackbox — Barometer and 16MB flight logging for tuning and performance.
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Note: The O4 lite can handle a max voltage of 1-3S. When using a 4S battery, an extra 5V BEC is needed.
Description
The Flywoo F405 NANO has been completely upgraded! We have further minimized and integrated the FC layout based on the original design. The new Flywoo GOKU GN405 Nano FC V3 w ELRS 2.4g is compact and features a USB-C universal port that is compatible with current mainstream data cables. It also supports the DJI O3 interface, allowing compatibility with high-quality digital transmission modules. Additionally, it has a complete set of six UART ports. Importantly, this flight controller is equipped with a TCXO ELRS high-precision receiver, making it an ideal solution for space-saving in micro drones. This flight controller is compatible with both QUAD and HEX drones, and users can switch between different ESC models. The latest three ESC models include: the 20A (QUAD) plug-and-play ESC, the 20A (HEX) plug-and-play ESC, and the high-performance 35A (QUAD) ESC. These options meet your compatibility needs for different drones, ensuring you have fun during your flights!
Check out our Micro FPV Flight Controller Stacks, all Flight Controllers Collection and the rest of our Flywoo Products!
Highlights
● 16x16 mounting holes with a compact design
● Built-in TCXO ELRS receiver
● Direct plug-in for DJI O3\O4 Air Unit
● FC/ESC pin header interface, compatible with QUAD/HEX
● Built-in barometer
● Equipped with a 16MB black box
● Universal USB-C interface
Recommendation
Specifications
Product Name
Flywoo GOKU GN405 Nano HD FC V3 w/ ELRS 2.4g 16x16
Upgraded from analog to digital with this FC. The Plug&Play with O4 was exactly that. The video and control link are incredibly reliable. Zero issues, just perfect performance.
Options：GOKU GN405 Nano HD FC V3 w/ TCXO ELRS
Additional reviews after 99
days
Three months in, the reliability continues to impress. An essential component for any digital micro.
T*************e
Verified
The build quality is exceptional. Everything just fits together perfectly. The ELRS connection is instant and robust. This stack makes building a high-performance micro digital quad almost too easy.
Options：GOKU GN405 Nano HD 35A Stack V3
Replied by MEPSKING:"Makes it almost too easy" is the best kind of compliment. Thank you!
B************o
Verified
Bought this separately to upgrade an older build. The performance uplift was immediate. Smooth, responsive, and reliable. Great value as a standalone ESC.
Options：GOKU BS 35A ESC V3
L************o
Verified
This FC transformed my micro long-range build. The TCXO provides a crystal clear, stable HD link even at the edge of range. Combined with the integrated ELRS, it's a long-range dream setup.
Options：GOKU GN405 Nano HD FC V3 w/ TCXO ELRS
Replied by MEPSKING:Perfect for pushing the boundaries on a micro! The stable link is crucial for long-range. Great build!
P********k
Verified
These ESCs are fantastic. Paired them with the GN405 FC. The 35A rating is conservative; they handle bursts with ease and stay surprisingly cool. The build quality is excellent.
Options：GOKU BS 35A ESC V3
Replied by MEPSKING:Excellent to hear about the thermal performance and power handling! Thanks for pairing it with our FC.
C***************n
Verified
Upgraded my 3-inch to this stack for O4. The integration is seamless. Video feed is rock solid, and the 35A ESCs have plenty of headroom. The most hassle-free digital upgrade I've done.
Options：GOKU GN405 Nano HD 35A Stack V3
Additional reviews after 189
days
Six months later, this stack is still performing flawlessly. The reliability is outstanding.
Replied by MEPSKING:"Hassle-free" is music to our ears! Thanks for choosing it for your O4 upgrade.
E*************t
Verified
The integrated TCXO and ELRS RX are a game-changer. The FC is incredibly stable, and the ELRS link is rock solid. Solder-free ELRS installation is a massive time-saver. Highly recommended.
Options：GOKU GN405 Nano HD FC V3 w/ TCXO ELRS
Replied by MEPSKING:The integrated TCXO and solder-free ELRS are indeed huge time-savers. Glad you appreciate the design!
M*****************r
Verified
The perfect all-in-one solution for a micro digital build. Setup was truly Plug&Play as advertised. The TCXO and 4-in-1 stack make for a super clean and reliable installation. Flight performance is flawless.
Options：GOKU GN405 Nano HD 35A Stack V3
Replied by MEPSKING:Thrilled to hear the Plug&Play experience worked perfectly for you! Enjoy the clean build and flawless flights.
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FAQFeel free to ask us any questions
Q: What is this stack designed for?
A: It is designed for ultra-light 3.5–4 inch O4 FPV builds.
Verified