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Happymodel Crazybee X AIO F4 1-2S Whoop Flight Controller - FrSky EU LBT


In Stock


** Current stock is V2.2 **

The Crazybee X is Happymodel's first Whoop AIO flight controller that can handle 2S voltage.

The crazybee X flight controller is a feature packed all in one Whoop flight controller. It comes with an integrated SPI receiver (DSMX, FrSky or FlySky), ESC, and 5.8GHz VTX (with support for BetaFlight OSD)! There's no soldering required as it uses plug connections for connecting motors and a camera. It would be a suitable upgrade FC for the Mobula6/Mobula6HD or any 1S Whoop build too


We sell the FC with a choice of a SPI receivers - DSMX, FrSky or FlySky. The FrSky version is pre-set to D8, but can be set to FCC D8 or D16 / D16 EU LBT in BetaFlight.

Important: Not compatible with big propellers like 65mm/75mm when using 2s battery. Recommended max size of propeller is 55mm.

Notice: Recommended Betaflight configurator 10.7.0 version

Bind procedure:

1. Plug the USB then press the bind button, the red LED at the bottom of the flight controller will blinking fast , this indicate the SPI DSM2/DSMX receiver is in bind mode.

2. Plug the USB then connect to Betaflight configurator, move to the CLI tab , then type “bind_rx”, the red LED at the bottom of the flight controller will blinking fast too , this indicate the SPI DSM2/DSMX receiver is in bind mode.

F4 Flight Controller

  • MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
  • Sensor: MPU-6000(SPI connection)
  • Board size: 28.5 * 28.5MM
  • Power supply: 1S-2S battery input (DC 2.9V-8.7V)
  • Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
  • Built-in Betaflight OSD(SPI Control)
  • Built-in 5.8G VTX
  • Built-in SPI Frsky receiver support D8/D16
  • Built-in 5V 1A BEC
  • Built-in voltage detection
  • Firmware target: CRAZYBEEF4FR

Onboard 5A BL_S 4in1 ESC

  • Power supply: 1-2S LiPo/LiPo HV
  • Current: 5A continuous peak 6A (3 seconds)
  • Support BLHeliSuite programmable
  • Factory firmware: S_H_90_REV16_7.HEX
  • Default protocol: DSHOT600

Onboard 5.8G 40CH 25mW VTX

  • Output power: 25mw
  • Frequency: 40CH
  • Input voltage: 3.3V 5.5V
  • Current consumption: 300mA(type)
  • Frequency: 5.8GHz 5bands 40 channels
  • With Race band
  • Smartaudio ready
  • Default vtx_power should set to be “2”

Onboard Voltage and Current detector

  • Voltage Meter scale “110”
  • Amperage Mete scale “1175”


  • 1x Happymodel CrazyBeeX F4 AIO Whoop Flight Controller (F4 FC, 5A 1-2S 4in1 ESC, 25mW VTX) 

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