Noticed: IR1 is the signal of RX1 with inverter ,used for SBUS receiver. RX1 and IR1 couldn’t be used at the same time .

CrazybeeX series flight controller is the first 5in1 AIO flight controller which could handle 2s.

It’s a better upgrade flight controller for your whoops. We could use this flight controller to building a 1s-2s compatible lightest 65mm/75mm/85mm brushless whoop.

Important: Not compatible with big propeller like 65mm/75mm when use 2s battery
Recommend max size of propeller is 55mm .

Flight controller MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection)
Board size: 28.5 * 28.5MM
Power supply: 1S-2S battery input (DC 2.9V-8.7V)
Built-in 5A(each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Betaflight OSD(SPI Control)
Built-in 5.8G VTX
Built-in 5V 1A BEC
Built-in voltage detection
Firmware target: CRAZYBEEF4FR
Onboard 4in1 ESC EFM8BB21
Power supply: 1-2S LiPo/LiPo HV
Current: 5A continuous peak 6A (3 seconds)
Support BLHeliSuite programmable
Factory firmware: S_H_50_REV16_7.HEX
Default protocol: DSHOT600

(CrazybeeX FR V1.0 version)
Onboard Frsky SPI receiver SPI BUS receiver Frsky D8/D16 compatible
Support Frsky_X_LBT(EU-LBT), Futaba S-FHSS (Need Betaflight 4.0.5 firmware or latest)
Channels: 8ch/16ch
Failsafe support
No ground interference ( Transmitter and receiver 1 m from the ground): 100m~200m

CrazybeeX FR V1.0 Bind procedure:
Make the on board receiver get into bind mode: For 3.5.7 version firmware Plug USB and then press the bind button for 1 second , the Red LED on the top of the flight controller will getting to be solid , this indicate the receiver is in bind mode; For 4.0.x version firmware Plug USB and then connect betaflight configurator and then move to CLI tab , type “bind_rx_spi” ,the Red LED on the top of the flight controller will getting to be solid , the onboard receiver is in bind mode; For 4.1.x or 4.2.x the bind code is “bind_rx”

Make your Frsky transmitter get into bind mode . If bind is successful the red led will starting to blink. The red LED wouldn’t blinking when binding with some new ACCESS firmware frsky radio , but the bind is actual successful , need to go to CLI command and type “save” to finish the binding .

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