Get yo RADIX on!


Learn how to build a drone with our step-by-step guides

 Introducing radix, the smartest, most innovative line of drone electronics BrainFPV has ever developed.

    hello graphics

On top of the normal Betaflight OSD, radix on-screen-display gives you extra features you can't get anywhere else. Proudly show off your pilot and team logo using our logo customizer with just a click of a button. Extra features also include a graphical barometer scale, artificial horizon, gyro spectograph, RC stick display, 3D OSD support and more! 

    hello features

There are WAY MORE features than customizing your logo on the splash screen. Features you cannot get with the normal Betaflight OSD. You have heard about the graphical features of our OSD. But what exactly are they, and how do I use them? Find out about all the cool features and how to enable them here: HOW TO PIMP YOUR BRAINFPV OSD

    hello flexibility

radix is engineered to perfection with a visually stunning form factor and plug-and-play stacking. The radix flight controller uses soft cables for vibration isolation and stacks seamlessly on the radix power board, Hobbywing 4-in-1 ESC, and radix wing power board (wPB). Its simple, sophisticated design facilitates a faster build time and minimizes human error.

    hello innovation

The fastest STM32 F4 processor running at 180MHz, as well as the industry leading Bosch gyro for an unparalleled flight performance!
Integrated BAROMETER, a necessity for long range flyers! How high are you?
Never run out of space with the MicroSD card slot for logging enthusiasts!
A dedicated camera control pad for changing camera settings in the field!
FOUR full hardware serial ports (UARTs), making it easy to use telemetry, change VTX settings, without ever running out of ports! Two of them feature signal inverters for S.Bus and SmartPort, allowing for a flawless setup!

    hello performance

Supporting up to 8S and 160A, the radix pb (power board) can handle serious power. The integrated LC filter and 5V (2A) regulator provide noise reduction and clean power to the radix fc and other peripherals. Get the cleanest sexiest build by soldering the motor and ESC telemetry signals directly to the radix pb, and connecting it to the radix fc using the included cable. Oh yeah, did we mention there are four integrated programmable LED’s?



GET YOUR WING ON! Use the radix wpb (wing power board) and combine it with the radix fc for a simple and clean fixed-wing solution. Servos can be directly connected to the radix wpb and the integrated 5V 2A (3A burst) voltage regulator can optionally power them as well. Of course also the wpb can handle serious power, supporting 8S  and up to 160A burst current. An integrated filter makes sure that you always have clean video and the current sensor provides accurate current measurement so you don't run out of battery on top of a mountain!

NOTE: The radix wpb has been discontinued. For now, we recommend the 20x20 mm RADIX LI wPB.

hello documentation

Have you ever seen anything so beautiful in your life? We outdid ourselves and won the award for BEST FPV MANUAL 2018.

Head over to the documentation to check it out!

hello support

didn't find the help you were looking for from our manual or our user group? no worries! just click on the 'help' button on the bottom left side of this page or email us at support@brainfpv.com to get first class customer service.


How Does RADIX Compare to the Competition?

Here is a comparison with our previous flight controller, the BrainFPV RE1, and other recently released products. I hope you agree that RADIX kicks ass 🙂

Flight ControllerBrainFPV RADIXBrainFPV RE1Betaflight F4Flyduino KISS FCv2
ProcessorSTM32 F4, 180MHzSTM32 F4, 180MHzSTM32 F4, 168MHzSTM32 F7, 216MHz
OSDFull-graphicFull-graphicCharacter basedNone (external)
BaroBMP280BMP280 (optional add-on)NoneNone
Logging MemoryMicroSD card slot16MB built-in16MB built-inNone (external)
Motor Outputs6 with DSHOT6 with DSHOT4 with DSHOT6 with DSHOT
Serial Ports42.5 (UART3 is RX only)4 (limitations due to fixed inverters)5
BEC5V, 2A with RADIX PB5V, 1A / 10V, 1A with mPB V25V, 1.5A5V, 500mA
Max Voltage35V (8S) with RADIX PB26V (6S) with mPB V2?6S (25.2V)
Max Current100A (160A burst) with RADIX PB80A (130A burst) with mPB V2? 145A burst- no PDB
Soft-mountingIntegrated grommetsNoneNoneNone
Stacks on 4-in-1 ESCYes, plug-and-playNoNoNo
FirmwareBetaflightBetaflight & dRoninBetaflightKISS
Price at Launch$49.99 FC / $19.99 PB$79 FC / $25 PB$44.95$66 (55.38 €)

Technical Specifications RADIX FC

Processor: STM32F446RET6, Coretx-M4, 32bit, 180MHz, 128kB RAM, 512kB Flash.
IMU: Bosch Sensortec BMI160 running at 3.2kHz, connected using SPI.
Baro: Bosch Sensortec BMP280 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.
Memory: MicroSD card slot for logging.
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. 
 Dedicated RGB LED output.
Camera Control: Dedicated output for accessing the camera menu to change camera settings.
IR Emitter: Dedicated output for infrared based lap timing with multi-protocol support (I-Lap, Trackmate). Needs external IR LED and driver.
Buzzer Port: Dedicated port for 5V (100mA max) buzzers.
Analog Inputs: Voltage sensing up to 35V, current and RSSI inputs (3.3V max).
Power: 4.5V to 5.5V, 120mA.
Dimensions: 37mm x 37mm, 30.5mm hole spacing. 4.1mm holes for anti-vibration grommets.
Weight: 6g

Technical Specifications RADIX PB

Battery Voltage: 3S to 8S (9V to 35V)
Maximum Current: 100A constant, 160A burst (total, 25A/40A per motor).
Voltage Regulator: Integrated 5V, 2A.
Noise Filter: Integrated LC filter for clean video.
Current Measurement: Up to 160A (20mV/A).
Motor Outputs: Solder pads for motor signals (DSHOT) for clean and simple wiring.

ESC Telemetry: Solder pads for ESC telemetry signals.
LEDs: Four integrated programmable RGB LEDs. Output for additional LEDs.
Stacking height: 5.5mm (space between RADIX FC and RADIX PB).
PCB: 4 layer, 4oz (170um) copper per layer. HASL plating (lead-free). 
Dimensions: 36mm x 38.5mm.
Weight: 8g

Technical Specifications RADIX Wing Power Board (WPB)

Battery Voltage: 3S to 8S (9V to 35V)
Maximum Current: 100A constant, 160A burst.
Voltage Regulator:Integrated 5V, 2A, 3A burst. By default, servos are powered by the ESC. The WPB has a jumper to enable powering small servos.
Noise Filter: Integrated filter for clean video.
Current Measurement: Up to 160A (20mV/A).
ESC Output: Output for ESC on servo headers.
Servo Outputs: Outputs for up to 3 servos on headers (RADIX FC has pads for 2 additional servos).

LEDs: Output for programmable RGB LEDs.
Stacking height: 5.5mm (space between RADIX FC and RADIX WPB).
PCB: 4 layer, 3oz (105um) copper per layer. HASL plating (lead-free).
Dimensions: 36mm x 39mm.
Weight: 8g