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Specifications:

• 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

FLIGHT CONTROLLER

• 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

ONBOARD UART ELRS 2.4GHZ RECEIVER

• 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

ONBOARD 4-IN-1 ESC

• 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

Includes

• 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

Wiring Diagram