BrainFPV Radix Li 20x20 Flight Controller
SKU: 24783352772

BrainFPV Radix Li 20x20 Flight Controller

Sale price$33.60 Regular price$37.33
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

BrainFPV Radix Li 20x20 Flight ControllerThe BrainFPV Radix Li takes everything you love from the full size Radix FC, and puts it into a tiny 20x20 board.. The two main features are a robust Bosh Gyro, and a fancy modern OSD chip. Traditional betaflight OSD's use a functional, but outdated OSD with limited features and update rates. The team at BrainFPV wanted something better so instead uss a graphical OSD chip that enables alot more features, and it just looks nicer. The Bosh Gyro also

The BrainFPV Radix Li takes everything you love from the full size Radix FC, and puts it into a tiny 20x20 board.. The two main features are a robust Bosh Gyro, and a fancy modern OSD chip. Traditional betaflight OSD's use a functional, but outdated OSD with limited features and update rates. The team at BrainFPV wanted something better so instead uss a graphical OSD chip that enables alot more features, and it just looks nicer.

The Bosh Gyro also mean that this FC performs great in the air. Other than that it has all the other features you expect and need from a betaflight FC.

Please make sure to read the quickstart guide before using this flight controller, as the firmware flashing is slightly different:

Compared to the Radix, the Radix Li is:

  • Smaller (20x20)
  • Has a 5V@500mA Regulator (3-6S Lipo input)
  • No Baro
  • No MicroSD slot
  • No Analog RSSI input
  • So ridiculously cute.

Technical Specifications RADIX Li FC

Processor: STM32F446RET6, Coretx-M4, 32bit, 180MHz, 128kB RAM, 512kB Flash.
IMU: Bosch Sensortec BMI160 running at 3.2kHz, connected using SPI.
OSD : Full-graphic, PAL/NTSC auto detect, adjustable black and white levels. Full Betaflight OSD support with extra graphical features. Support for side-by-side 3D when used with a 3D FPV camera.
Motor Outputs: 6 outputs with full DSHOT (150/300/600/1200) and OneShot support.
Receiver Support: PPM, S.Bus (inverter built-in), DSM, HoTT, SRXL, CSRF, FPort ready. 5V or 3.3V supply for receiver. Receiver is powered from USB for easy and safe setup.
Telemetry Support: FrSKY Smart Port, FrSKY Sensor Hub, HoTT Telemetry, SRXL, CSRF, FPort ready. Built-in inverter for FrSKY telemetry.

Serial Ports: 4 full serial ports (UARTs). UART3 and UART6 have inverters for S.Bus and SmartPort telemetry. Inverters are automatically enabled/disabled for maximum flexibility.
RGB LEDs:
Dedicated RGB LED output.
Camera Control: Dedicated output for accessing the camera menu to change camera settings.
Buzzer Port: Dedicated port for 5V (100mA max) buzzers.
Analog Inputs: Voltage sensing (VBAT), current input (3.3V max).
Power: 3S - 6S (7.5V - 26V), 500mA BEC
Dimensions: 26.5mm x 26.5mm, 20mm hole spacing. 4.1mm holes for anti-vibration grommets for M3 screws.
Weight: 4g
Gluten free, Non GMO, Free Range Anorganic Gyro

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: 24783352772

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4.8 ★★★★★
Based on 2446 reviews
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K
Verified Purchase
Kayla
Massapequa, US
★★★★★ 4
He loved it
Is it durable? Not at all. Did he love it? While it lasted. Our dog is a monster chewer with toys so I go into every purchase knowing we might get 8 hours out of a toy if we're lucky, depending on visible durability. We don't even buy stuffies anymore because it's just not smart. He loved the squeak while it lasted, it's large so we never have to worry about him choking on it while running/being dumb. If you have a dog that will eat pieces of things as they destroy toys, this is not the toy for them. Ours plucks it apart piece by piece, but leaves the bits near one of us (LUCKILY!). If he didn't, we'd never buy this again. The missing star is just for lack of durability. Even for a rubber toy it felt like it didn't last very long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
C
Verified Purchase
Carol
Lowell, US
★★★★★ 5
I highly recommend and my dog loves it
I have a 80 pound bulldog who destroys everything he gets his mouth on. He loves this toy. He has not been able to destroy it. Not even a bite mark. He has to have this with him at all times (including during zoomies). I highly recommend it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Great
My dog loved it and it’s durable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
D
Verified Purchase
Doc Vincent
Los Angeles, US
★★★★★ 3
Reed review don’t really recommend
Did not last very long with my larger dog. And honesty it was destroyed in about 15 minutes completely, and when my dog was tearing it apart, the chunks were large enough for my dog to choke on, so I would highly recommend watching your dog with this toy if they decide to chew it and tear it apart, so they don’t choke so this could be a possibly dangerous toy.
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Reviewed in the United States on April 13, 2026
G
Verified Purchase
George
West Palm Beach, US
★★★★★ 5
Best fetch toy for aggressive chewers.
Great toy to play fetch. I have aggressive chewer, and this works wonderful. Not heavy, and is soft, not like hard plastic. My dog loves them, (I bought 2). The bright color is easy to find, when you dog misplaces it. The price was very good, and well worth it. I recommend this toy, especially for retrieving dogs.
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Reviewed in the United States on April 25, 2026

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