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HappyModel CrazyBee F4 Pro V3 AIO Whoop Flight Controller for Larva, Sailfly, Mobula - FRSKY

Original price $47.99 - Original price $47.99
Original price $47.99
$49.99 - $49.99
Current price $49.99
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Receiver: FRSKY
Free Delivery on U.S.A. Orders $99 or more

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This is the FrSky RX equipped version.

The CrazyBee series just got a little crazier! These AIO whoop style FCs are meant as replacements and upgrades for several HappyModel BnF/PnP quads, like the Mobula7, SailyFly, and Larva but are just as at home in your custom whoop/toothpick builds.

"V3.0 supports 2S – 4S LiPo, ESC upgraded to 10A. A few things have gone back to how it was before due to the lack of space: no longer using plastic connector for VTX and camera, just solder pads now; And bind and boot buttons reverted back to the original tiny ones"

 - from Oscar Liang's great post all about the version differences.

Be sure to check out all our Whoop FCs and our HappyModel gear collection!


  • Board size: 28.5 * 28.5MM
  • Power supply: 2-4S battery input (DC 7-17V)
  • Built-in 10A(each) Blheli_S 4in1 ESC Dshot600 ready
  • Frsky version Built-in SPI Frsky receiver with telemetry(D8/D16 switchable)
  • Built-in Betaflight OSD(SPI Control)
  • Built-in Current meter Max 70A
  • Current meter scale set to 470
  • Built-in 5V 1A BEC
  • Built-in voltage detection
  • MCU upgraded to EFM8BB21
  • Power supply: 2-4S LiPo/LiPo HV (7v/17v)
  • Current: 10A continuous peak 12A (5 seconds)
  • Support BLHeliSuite programmable
  • Factory firmware: F_H_40_REV16_5.HEX
  • Default protocol: DSHOT600

FRSKY SPI BUS receiver

  • Frsky D8/D16 switchable
  • Compatible Non EU transmitter both D8 and D16 mode
  • Channels: 8ch or 16ch
  • Failsafe support
  • No ground interference ( Transmitter and receiver 1 m from the ground): 300m


    • (Frsky version) CRAZYBEE F4FR PRO V3.0 Firmware target: CrazybeeF4FR


      • 1x HappyModel CrazyBee F4 Pro V3 AIO Whoop Flight Controller
      • 1x XT30 Pigtail
      • 1x Hardware Set