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HappyModel Diamond 1S F4 AIO Flight Controller w/ 5A 8Bit 4in1 ESC & 400mW VTX - ELRS SPI

Original price $61.99 - Original price $61.99
Original price
$61.99 - $61.99
Current price $61.99
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This 5-in-1 flight controller is inspired by Happymodel's Official Pilot - Angry Don FPV! The Happymodel Diamond F4 AIO 5-IN-1 Flight controller has a built-in VTX, ESC, OSD, and receiver - all on one triangle-shaped whoop board!

The 3 corners fit 25.5mm whoop mounting spacing.


  • Diamond Mounting Pattern - 22.2x22.2x32.7mm 
  • Built-in 5A Blheli_S 4in1 ESC, Dshot600 ready
  • Built-in Betaflight OSD (SPI Control)
  • Built-in 25-400mW 5.8GHz VTX
  • Built-in SPI ELRS Receiver
  • Built-in 5V/1A BEC


Flight controller

  • DiamondF4 ELRS FC Firmware target: CrazybeeF4SX1280
  • MCU: STM32F411CEU6 (100MHZ, 512K FLASH)
  • Gyro: ICM42688P 
  • Original whoop size compatible
  • Power supply: 1S battery input (DC 2.9V-4.35V)
  • Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
  • Built-in Betaflight OSD(SPI Control)
  • Built-in 5.8G VTX
  • Built-in SPI ELRS
  • Built-in 5V 1A BEC

Onboard 4in1 ESC

  • Power supply: 1S LiPo/LiPo HVCurrent: 5A continuous peak 6A (3 seconds)
  • Factory firmware: O_H_5_REV16_8.HEX
  • Support BLHeliSuite programmable
  • MCU upgraded to EFM8BB21
  • Default protocol: DSHOT600


  • Packet Rate option: 50Hz/150Hz/250Hz/500Hz
  • Compatibility: ExpressLRS V2.0 TX Module
  • Antenna: Enameled copper wire antenna
  • ExpressLRS Firmware version: V2.0
  • Receiver protocol: SPI ExpressLRS
  • Telemetry output Power: <12dBm
  • RF Frequency: 2.4GHz

Onboard 5.8g VTX

  • Transmitting Power: 0/RCE/25mw/100mw/400mw
  • Current (5v): <650ma (400mw)
  • Firmware version: OPENVTX
  • Power supply: DC 5V
  • RCE Mode support
  • PIT Mode support
  • Smart audio v2.1
  • Channels: 48ch

Cannot flash ExpressLRS firmware separately. 


  • 1x HappyModel Diamond 1S F4 AIO Flight Controller w/ 5A 8Bit 4in1 ESC & 400mW VTX - ELRS SPI
  • 2x Connecting Wire
  • 4x Damping Balls
  • 4x Screws