Crazybee F3 flight controller is a Ultimate version for 1S Whoop racing drone, it’s the world first Tiny whoop size brushless flight controller with Receiver/4in1 ESC/OSD/Current Meter all in one design, include all your needs .
 
Specifications:  User Manual download
Firmware: Betaflight_3.3.0_Crazybee
MCU: STM32F303CCT6 (72MHZ, 256K FLASH)
Sensor: MPU-6000(SPI connection)
Power supply: 1S battery input (DC 3.5-4.35V)
Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Frsky receiver with telemetry D8
Built-in Betaflight OSD(SPI Controll)
Built-in Current meter (Max 14A,could be modified to 28A by replace resistor)
Built-in 5V 0.8A BEC with LC filter
Built-in voltage detection
BLHELI_S pass-through Ready
Heading LED Ready

Board size: 29 * 29MM
Board weight: 3.5 g

ESC parameters:
Power supply: 1S LiPo/LiPo HV (4.2v/4.35v)
Current: 5A continuous peak 6A (3 seconds)
Support BLHeliSuite programmable
Factory firmware: O_L_5_REV16_6.HEX
Motor connector: JST PH1.25 3pin
Signal Support: Dshot150/Dshot300/Dshot600/Oneshot125/Multishot/PWM
 
Receiver parameters:
SPI BUS receiver
Compatible Frsky D8
Channels: 8ch
Failsafe support
No ground interference ( Transmitting and receiving 1 m from the ground): 300m

Note:CrazybeeF3FR Betaflight Target will release at Betaflight V3.3.1

CrazyBee F3 Frsky Betaflight Default DUMP, Download
Program Betaflight3.3.0_CrazyBee_Frsky_ 20180209, Download

Package Included:
1 x Crazybee flight controller ESC receiver