SKU: 99149566066

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

$66.59 $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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    4.3 ★★★★★
    Based on 14 reviews
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    Verified Purchase
    Butch M.
    Port Orchard, US
    ★★★★★ 5
    Fantastic Shoe for the Price
    Size: 9.5 Wide, Color: Wingtip Black
    Okay, I’m used to spending big bucks on men’s dress shoes. I’m talking $300 plus for American made shoes. They are recraftable (resole-able) for another $100 each time. But since Covid, I don’t go to the office as often. One of my black dress shoes needs to be re-soled, and it will be. Just not now. So I ran into these shoes on Amazon. It’s hard to argue with the price. Literally 10% of what I have been paying. So, are these shoes 90% lower in quality? The short, simple answer is, surprisingly, no. Just the opposite. Upon receipt, I inspected them carefully and they looked pretty darned decent. I was looking for any excuse to plop them back in the box and return them. I couldn’t find anything. I appreciate that the leather upper is smooth and mildly shiny. This is a wing tip style shoe, so I’m impressed that the extensive stitching was evenly spaced. The leather detailing that I expect on a wing tip is also all there. Inside the shoe, it is lined from the toes all the way to the heel box… nice! And that leather feels surprisingly supple. That is something I would expect on a much more expensive shoe. But definitely not at this price point. Hmm. I even liked the wax laces they chose. They are a little thicker and have more than adequate length. The shoe’s eyelets have interior facing metal grommets to protect against stretching and tear out of the leather and helps protect the laces against friction wear, as they are tightened and loosened over time. Now having that detail, at this price point, has raised both of my eyebrows. Double hmm. Now I am really impressed. The only thing that I didn’t like was that the stitching—that joins the uppers to the sole—is white. I needed to polish these shoes anyway, so I figured I’d see what would happen if I put black polish on the stitching. I’m happy to say that the uppers shine up very nicely, to a high gloss. This was done with just a little bit of buffing, using a traditional horse hair bristled brush. And followed by a buffing cloth. Although I didn’t do it, the leather is smooth enough that I probably could have spit shined them. And those pesky white stitches on the top side of the soles? Well I’m happy to report that they are now definitely black. Turning the shoe over, I can visually see a lump where the shank is supposed to be. That’s a good thing. Not all shoes have a shank. It helps to support the arch. That’s another nice detail. I am expecting the shank to be plastic at this price point. So I am utterly shocked to report to you that a magnet sticks to the bottom of the shoe. That shank is steel! Now I am amazed! We’re talking mind blown, Purple smoke everywhere. Speaking of details, I was very surprised to see the nicely done wing tip detailing, from on top of the shoe, carried over to the bottom of the sole. Wow. I have never seen that before. That’s surprising. Now it is important to point out that the sole is some man made material. Definitely not leather. But that’s okay. Especially in the wet, leather wears out quickly, if you don’t wear rubber over shoes. One less thing to fuss about. The heel itself has a band/layer of rust brown material sandwiched between black layers. I wonder if that is a cork or bamboo material? Having walked in these shoes, on concrete and tile floors, last week, there is a noticeable level of cush, or give. They will definitely not to be confused with sneakers. But for dress shoes, this is a pleasant and surprising experience. The first day, I wore them at home, over the weekend and I’m glad I did that. They needed time to adjust to my feet. Any dress shoe that I have ever worn needs that. But after that, these shoes have been pleasant enough to walk around in at work. I’d have to say that these shoes give me at least 90% of what I would expect from my $300+ shoes for around 10% of the cost. In my estimation, at their current price point, they constitute an excellent deal. And especially if you are just breaking into the business world and need a good pair of interview shoes, these are definitely respectable… just be sure to put black polish on the white stitches. Oh, BTW, I have wider feet and I ordered the shoe wide. After the initial stretching, they fit nicely. So, in the final analysis, what do I think? I have to say, yes, these shoes definitely get my recommendation. Especially if price is a huge factor, then these shoes constitute an excellent deal.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 20, 2023
    M
    Verified Purchase
    Mark A Petrosino
    Cuba, US
    ★★★★★ 5
    Very Satisfied
    Size: 10.5, Color: Black
    Excellent Value . Very well made shoes . Shoes were true to size ! I am going to order in Brown also !
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 9, 2026
    N
    Verified Purchase
    Nikki
    Fort Morgan, US
    ★★★★★ 5
    Great dress shoe
    Size: 10.5 Wide, Color: Black
    Wow. Very impressed with these. Would purchase again. Comfortable enough for my teenage son, my husband and I very impressed with their look. Great for any special occasion. Ours appear to be all leather. Even the sole. These will last a lifetime if cared for.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2026
    R
    Verified Purchase
    Richard
    Lexington, US
    ★★★★★ 3
    Ok. Not great
    Size: 8.5 Wide, Color: Brown
    They look great but not that comfortable
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    M
    Verified Purchase
    Marco Cervantes
    Pawtucket, US
    ★★★★★ 5
    Great shoes
    Size: 10 Wide, Color: Brown, Size: 10 Wide, Color: Brown
    This shoe is incredibly comfortable and durable. I work in custodial work as management. However, sometimes I have to help my team when we are low manned. Just recently I had to help my team auto scrub a restroom. My shoes felt lightweight and were completely easy to clean. I was worried I would be slipping on sudsy water. To my surprise, these shoes gripped on to the floor nicely. I love the versatility of having a working shoe with the great style Bruno Marc provides. The shoe is breathable and true to size. I ordered the black pair as well and have had them for about 3 months. Highly recommend these amazing shoes.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 28, 2026

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