SKU: 99149566066

TUNERC Poly F405 20A 2S-4S AIO v1.2 Flight Controller - 25.5x25.5mm

Sale price$66.59 Regular price$73.99
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Description

TUNERC Poly F405 20A 2S-4S AIO v1.2 Flight Controller - 25.5x25.5mmPoly AIO V1. 2 is Here. The OG Poly F405 AIO is Getting Better. Versatile and High Performance AIO for Micro Community This Poly F405 2S 4S AIO is designed for FPV micro community and its made to be super versatile so pilots can use this it in different builds like agile micro or long range quad or creative X6 X8 quads. The AIO board has integrated blackbox, current meter and features 5 UARTs to suit needs for different builds. Apart from versatility,

Poly AIO V1.2 is Here. The OG Poly F405 AIO is Getting Better.

Versatile and High Performance AIO for Micro Community

This Poly F405 2S-4S AIO is designed for FPV micro community and it’s made to be super versatile so pilots can use this it in different builds like agile micro or long range quad or creative X6/X8 quads.
The AIO board has integrated blackbox, current meter and features 5 UARTs to suit needs for different builds. Apart from versatility, we have made this AIO board high performance to make sure it could hold up well on powerful quads. To achieve this goal, this AIO board comes with powerful F405 chip and high quality 20A mosfets and excellent heat dissipation ability.

Check out our wide variety of Whoop Style AIO Boards and the rest of our TUNERC Products Collection.

Several improvements are made to the V1.2 to make the Poly AIO easier to solder and work with, and to meet pilots needs.

  • Bigger and easier to access battery lead and capacitor soldering pads.
  • Bigger flash blackbox. The blackbox flash is updated from 4Mbyte to 8M flash. Pilots can now record more flying data, which makes the tuning easier.
  • New inverter is used. Now, you don’t need to bridge the jumper pads any more. Just wire the SBUS receiver to the UART4, and you are good to go.
  • Higher current 3.3V LDO is featured onboard, the power supply is much improved. 

 

Suitable for Lightweight Toothpick and Cinewhoop

The Poly AIO V1.2 is easy to use, light weight and versatile. Big soldering pads, reasonable pad layout and easy to access battery leads, all of these features make the Poly F405 V1.2 AIO really easy to solder and work with.  It also features a bigger blackbox 8M flash, now you can record more flying data. And 5UARTs onboard mean you will not be short of UART anymore. So whether you build toothpick, cinewhoops or longrange quads, Poly F405 2S-4S V1.2 AIO get you all covered.

 

Recommended Builds

The Poly V1.2 AIO is suitable for light 3″ sub250g builds. It supports motors ranging from 1102~1104, 1202~1204, 1303, to 1404 motors. 1404 is the largest motor the Poly V1.2 supports, please avoid using high kv option like 6000kv 1404 motors. And for 1404 4s build, we highly recommend you solder the capacitor directly to the capacitor soldering pads.

 

Note about the FC Firmware Preflashed to the Poly F405 V1.2

The default betaflight firmware version on the Poly V1.2 is 4.5.1, because the version limits and the product testing needs, the default settings are CRSF protocol and analog OSD mode. For HD digital and other receiver users, please reflash the firmware to include HD OSD options and other receiver protocols.

------updated on 2024/8/27

Note about the ESC firmware Preflashed to the Poly F405 V1.2

The default Bluejay firmware on the Poly F405 V1.2 is 0.21. The start up power is lower than the previous version V0.16. If you find your motor doesn't spin up, please try to increase the start up power.

Check out the article below to see how to set up the startup power and motor idle.
https://github.com/bird-sanctuary/bluejay/wiki/Setup

------updated on 2024/8/27

Note for Motor Choice

1404 is the maximum motor size that the Poly F405 V1.2 supports. About the KV value, please avoid using high kv 1404/1303 motors, such as 1404 6000KV.  For the 1404 size motor, 3800kv is recommended.

Note for Capacitor Installation

Please solder the capacitor directly to the onboard capacitor soldering pad. We highly recommend that you do this when you build a 4S quad.

Note for Receiver and VTX Setup

Please power up the receiver and VTX by the battery during the binding and setup process. Because the 5V from USB does not power the receiver and VTX.

Note for Buzzer Choice

Only the buzzer with a built-in drive circuit can be used on this AIO flight controller. A common micro buzzer (that only has two legs and without PCB board) is incompatible with the Poly F405 2S-4S AIO. 

Hardware Specs

    • FC MCU: STM32F405RGT6( Cortex®-M4 168Mhz )
    • Built-in OSD: AT7456E
    • Built-in IMU: BMI270
    • Built-in 8M Flash Blackbox
    • Built-in Current Meter
    • ESC MCU: EFM8BB21 ( 8bit 50MHz )
    • UART: UART1 ( for VTX by default ), UART2, UART3, UART4 ( supports SBUS ), UART5 
    • Other interfaces: IIC ( IIC2 ) , LED_Strip, Buzzer
    • The through holes for power lead: big enough to fit 16AWG wire
    • 8 Motor Outputs ( The onboard esc have been used for 4 motor outputs. You can add 4 external esc if you want to use the other 4 motor outputs )

    Electronics Specs

    • Input Voltage: 6.50-20.0V( 2S-4S LIPO/LIHV )
    • Power Output: 5V 2A
    • Continuous Current: 20A

    Firmware

    • FC Betaflight Target: TUNERCF405
    • ESC Firmware: Bluejay P-H-25

    Motor Size Supported

    • 1102~1104, 1202~1204, 1303, 1404

    Recommended Capacitor 

    • A 35V 220uf capacitor is included. A 35v 220-470 uf capacitor with low ESR is recommended if you want to swap the default one.

    Dimensions

    • Size: 33mm x 33mm
    • Mounting Holes Pattern: 25.5 x 25.5mm   Room for M3.5 grommets to make M2 mount
    • Weight: 6.1g

     

    Download the wiring diagram here.

    Package Includes:

    • 1 * Poly F405 2S-4S 20A AIO V1.2
    • 1 * XT30 pigtail with 18awg wire
    • 1 * 35V 220uf capacitor 
    • 6 * grommets

     

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 99149566066

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    Based on 28 reviews
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    Maria
    Port Orchard, US
    ★★★★★ 5
    Cute durable dog toy that my puppy loves
    Color: Blue, Size: 8 IN
    This small light weight dog toy is very durable, super cute, and my dog loves it. My dog tears everything up but he hasn't made a dent in this; very durable and chew resistant. He seems to really like that it makes a lower squeak noise. I threw this in my cart at the last minute before checkout and I am pleasantly surprised with the quality. I would say this toy is worth the price; suitable for small to medium sized dog.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 2, 2026
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    Verified Purchase
    IntelliCABlonde
    Boise, US
    ★★★★★ 5
    Nice toy for a bigger dog
    Color: Gray, Size: 6 IN
    My little rescue chihuahua has exactly one toy he can make squeak. This one is cute and he did try, but no luck. I have two large baskets of toys I've bought in the 3 years I've had him. He is only able to make one squeak. He loves it to death because he loves the squeak. It's a hedgehog that I will try to find on Amazon and replace. Poor little dog just has a very small mouth.
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    Reviewed in the United States on June 3, 2026
    A
    Verified Purchase
    Al
    Bozeman, US
    ★★★★★ 5
    Semi durable
    Color: Gray, Size: 8 IN
    My dog has had this for 1 month, and it is still doing good! It has lost 3 out of 4 legs, but thw body is pretty strong. Dog loves the honk noises.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 7, 2026
    P
    Verified Purchase
    princeton von d
    Natrona Heights, US
    ★★★★★ 5
    Luxurious Feel, Durable Build… but Full Rotation Privileges Have Been Revoked 💙🦴 🐾
    Color: Blue, Size: 6 IN, Color: Blue, Size: 6 IN
    🐾 Hi, I’m PVD; toy curator, plush critic & occasional chew sommelier. This armadillo arrived beautifully packaged and immediately met my standards for texture, squeak clarity and cuddle factor. I originally gave it 5 stars for quality; and still do! But today I’m updating the review to reflect my current toy lifestyle rotation. 😌 What impressed me from day one: ✔️ High-end plush feel; soft enough to nap on, tough enough for energetic zoom bites and great relief from teething ✔️ Strong stitching; survived multiple “stress tests” (I chewed with intention) ✔️ HQ squeaker; not tinny or annoying, more of a honk ✔️ 6in is perfect size for small breeds; easy to carry during dramatic hallway walks Why it now gets 4 stars from a seasoned toy collector: ✘ As my luxury toy collection expanded, this one gets grabbed less often ✘ Simple design; I now favor more interactive or complex textures ✘ Still “keep-worthy,” just no longer VIP spot on the chaise lounge Best For: • Pups who enjoy soft comfort toys or emotional support snuggles • Light to moderate chewers • Dogs who like to carry their plushes around proudly • Ideal as a teething toy or thoughtful gift 🚫 Not ideal for: power chewers or highly stimulation-driven pups (like me now; my taste evolved) 📝 Final Re-Barks: Still recommend for pups who love cuddly squeaky companions. Great starter plush and great quality; just know that ultra-picky toy enthusiasts may rotate it out once newer models (or squeakier friends) arrive. — PVD (Plush Aficionado, Toy Rotation Director & High-Maintenance Household Icon) 🐶💁🏻‍♂️✨
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 17, 2025
    S
    Verified Purchase
    Sarah
    Houston, US
    ★★★★★ 4
    Well Constructed Toy But Short-Life Squeaker
    Color: Gray, Size: 8 IN
    Super cute and durable toy. Makes a "grunting" noise that my dog loves. However rating a little lower because my dog has only been playing with it (gently) for a couple weeks and the grunting noise is starting to die. But she does really like this toy regardless!
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    Reviewed in the United States on June 4, 2026

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