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 7 - Jul 12

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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 Traditional betaflight OSD's use a functional, but outdated OSD with limited features and update rates.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 Traditional betaflight OSD's use a functional, but outdated OSD with limited features and update rates.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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GrossMotorGuru
Louisville, US
★★★★★ 5
Classic and functional
Color: Stainless Mesh/ Blue Dial
High quality and affordable watch. Love the mesh band. It’s a classic, functional everyday look. Easy to adjust, and never runs out of power. Perfect for men who have smaller wrists. Bought for my husbands birthday, and he loves it.
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Reviewed in the United States on July 31, 2025
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Adrian
Louisville, US
★★★★★ 5
Everything as expected
Color: Stainless Mesh/ Blue Dial
It's a nice watch added to the collection, looks really good on hand, the metallic mesh band is very elegant and also customizable, so it will fit perfectly on your hand. It seems that it had a bit of charge out of the box, but I'll leave it under a direct (under 20cm distance) LED desk lamp to recharge overnight, I'll also leave them under sunlight around the windows whenever possible (at least for the first week or so), it's stated in the online manual that it will need ~45 hours to fully charge on a cloudy day under the sunlight. By the way, it would've been nice to have the manual in the box, but at least it's easy to find the (generic) manual in their website. The fluorescence of the hands and hour dots are really bright and mine had nice bluish color. Of the features, the chronograph works perfectly as expected, the manual also states to set the time 5 minutes ahead of the real time then slowly rewind back to the current time whenever setting the time, for the time keeping to be more accurate because of some gear movements inside. To be honest, it would be great to see Citizen use scratch resistant sapphire instead of some mineral as the face protective layer, as they do for other high-end models, the technology is not new and I think it wouldn't make it that much more expensive, I hope this one will be resistant enough🤞🏻 Overall, this is the first day I received the watch, I'm quite happy with my purchase, it's nice knowing you won't need to replace the battery anytime soon 😛
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Reviewed in the United States on December 12, 2023
M
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44Magpie
West Palm Beach, US
★★★★★ 5
Great World Time Watch!
Color: Stainless/ Black Dial
The usual quality Citizen construction, Eco-Drive, and a very handy world time bezel. FIVE STARS!
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Reviewed in the United States on February 8, 2026
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DS
Carnegie, US
★★★★★ 4
Great watch for the money
Color: Stainless Mesh/ Blue Dial
Looks great. I swapped out the band for a leather strap. Nice watch, well designed. My other eco drive has been going strong for 15 years or so without a hitch. So I have high expectations for this one.
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Reviewed in the United States on January 9, 2024
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Gael Rivera
Port Orchard, US
★★★★★ 5
Great Gift
Color: Stainless Mesh/ Blue Dial
It was a gift for my Dad but he loved it! Very worth it
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Reviewed in the United States on April 23, 2026

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