Flight controller

(ELRS SPI RX version)DiamondF4 ELRS FC Firmware target: CrazybeeF4SX1280
(Frsky SPI RX version) DiamondF4 FR FC Firmware target: CrazybeeF4FR
MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000 or ICM20689 or BMI270(SPI connection)
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 OPEN VTX
Built-in SPI ELRS V2.0/Frsky receiver
Built-in 5V 1A BEC

Onboard 4in1 ESC

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

Onboard ELRS V2.0 receiver Version

Packet Rate option: 50Hz/150Hz/250Hz/500Hz
ExpressLRS Firmware version: V2.0
RF Frequency: 2.4GHz
Antenna : Enameled copper wire antenna
Telemetry output Power: <12dBm
Receiver protocol:  SPI ExpressLRS
Compatible with ExpressLRS V2.0 TX Module
Couldn’t flash separately ExpressLRS firmware

Onboard Frsky SPI D8 receiver Version

SPI BUS receiver Frsky D8 compatible
Compatible Non EU transmitter D8 modelChannels: 8ch
Failsafe support
No ground interference ( Transmitter and receiver 1 m from the ground): 200m~300m

Onboard 5.8g OPENVTX

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