HappyModel CROSSF4 AIO Flight Controller - ELRS

Lightweight AIO board with plugin connectors for your motors, NO VTX, 5A ESC (BLHeli_S ESC), onboard ELRS receiver (V3.0 firmware), blackbox recording and can take 1S or 2S batteries. This is an ideal FC for lightweight HD build.

Specifications:

• Flight Controller:
  • Firmware target: CRAZYBEEF4DX4.3.2
  • MCU:STM32F411CEU6 (100MHz, 512K FLASH)
  • Sensor: BMI270 (SPI connection)
  • Power supply: 1-2S Lipo/Lihv battery input (DC 2.8V~8.7V)
  • Built-in 5A (each) Blheli_S 4in1 ESC Dshot300 ready
  • Built-in Betaflight OSD (SPI Control)
  • Built-in 5V 1A BEC
  • Built-in voltage detection and current sensor
  • Built-in Onboard flash 16Mb for Blackbox
     
• ESC:
  • MCU upgraded to EFM8BB21
  • Power supply: 1-2S LiPo/LiPo HV (2.8v~8.7v)
  • Currents: 5A continuous peak 6A (5 seconds)
  • Supports BLHeliSuite
  • Default Factory firmware: S_H_50_REV16_8.HEX
  • Supports ESC Protocol: DSHOT150 / DSHOT300 / DSHOT600
     
• ExpressLRS 2.4GHz Receiver:
  • Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
  • RF Frequency: 2.4GHz
  • Antenna: enameled copper wire 31mm length
  • Telemetry output Power: <12dBm
  • Receiver protocol: CRSF
  • Default firmware version: ExpressLRS V3.0.1
  • The same hardware with Happymodel EP1
  • Could update firmware via ExpressLRS configurator

Tips:

• To enable blackbox recording, go into the CLI tab in Betaflight and type the following command:
  set blackbox_device = SPIFLASH
  set flash_spi_bus = 2
  resource FLASH_CS 1 a14
  save
• To bind the receiver, make sure your TX is updated to the V3.X version. The binding procedure is the same as the EP1/EP2 (3 consecutive USB plug in to put the receiver into bind mode or via passphrase - if you're having difficulties there is an alternative way of binding here)
• Note that Model match is on by default. You can turn that feature off by connecting the ELRS rx to the ELRS page, then go to the "model" page and turn model match off

Package:

• 1x CROSSF4 AIO FC
• 1x PH2.0 Pigtail
• 1x set of screws and grommets

Wiring diagram here
Betaflight ports/Rx configuration tabs here

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