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HappyModel CrazyF405 ELRS HD 1-2S AIO Whoop/Toothpick Flight Controller w/ 12A 8Bit 4in1 ESC & ELRS 2.4GHz RX

Original price $54.99 - Original price $54.99
Original price
$54.99 - $54.99
Current price $54.99
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An F405 chip FC with built-in Serial ELRS receiver, 4in1 12A ESC, and 8Mbp black box. Optimized layout, supports 1-2S Lipo/LiHV. Perfect for Tinywhoop/Cinewhoop/Toothpick. Betaflight/INAV compatible. 3 sets UARTs, 5V/3A & 9V BECs, barometer. Get performance to elevate your FPV. Experience exceptional agility and power for your racing and freestyle sessions. With this board, you'll have the perfect setup to take your flight to the next level.

Browse the rest of our Whoop AIO Boards and our Happymodel gear.


  • Brand Name: Happymodel
  • Item Name: CrazyF405HD ELRS 1-2S AIO Flight controller
  • Mount size: 25.5mmx25.5mm
  • Weight: 4.8g without power lead wire
  • Firmware target: BetaflightF4
  • Support 1-2S Lipo/LiHV battery


  • Built-in voltage meter sensor, voltage meter scale 110
  • Built-in current meter sensor, current meter scale 470
  • MCU: STM32F405RGT6 (168MHZ, 1Mbyte FLASH)
  • Power supply: 1-2S battery input (DC 2.9V-8.7V)
  • GYRO Sensor: BMI270  (SPI connection)
  • Built-in 12A(each) Blheli_S 4in1 ESC
  • Built-in Serial ExpressLRS 2.4G
  • Model: Crazy F405 ELRS HD
  • Built-in BMP280 Barometer
  • Built-in 8MBp black box


  • Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
  • Could update firmware via ExpressLRS configurator
  • Antenna: enameled copper wire 31mm length
  • Default firmware version: ExpressLRS V3.0.1
  • Firmware target: HappyModel EP 2400 RX
  • Telemetry output Power: <12dBm
  • RF Frequency: 2.4GHz


  • Current: 12A continuous peak 15A (3 seconds)
  • Factory firmware: Bluejay ESC V0.19
  • Support BLHeli_S Bluejay firmware
  • Power supply: 1-2S LiPo/LiPo HV
  • Default protocol: DSHOT300
  • Firmware target: Z-H-30
  • *When using 1s battery and high KV 0702/0802 motors, should set the startup power to 1100/1200


  • 1x HappyModel Crazyf405 ELRS HD 1-2S AIO Whoop/Toothpick Flight Controller w/ 12A 8Bit 4in1 ESC & ELRS 2.4GHz RX
  • 1x Power lead with a XT30 Connector