Happymodel CrazyF411 PRO AIO F4 FC

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Brand: HappyModel


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Happymodel CrazyF411 PRO AIO F4 FC built-in 20/25A ESC OSD/Frsky diversity receiver for Toothpick

CrazyF411 pro is a highly packed 6.3g 2-4S AIO F4 flight controller with built in 20/25A per channel ESC and diversity receiver.
Low latency D8/D16 Futaba S-FHSS Redpine protocol with dual IPEX UFL Antenna (with Power amplifier)
Large soldering pads with 4 angled motor connector (not soldered)
2 complete UART (UART 1 with inverted PX pad)
Compatible with 110x/120X/130X/140X motors
Integrated with F411 processor, Betaflight OSD, 5V 1.5A BEC

CrazyF411 AIO F4 FC wiring diagram

Flight controllerMCU:STM32F411CEU6 (100MHZ, 512K FLASH)
Sensor: MPU-6000(SPI connection)
Board size: 28.5 * 28.5MM
Power supply: 2-4S battery input (DC 8V-17V)
Built-in 20A(each) Blheli_S 4in1 ESC Dshot600 ready
Built-in Frsky D8/D16 SPI receiverBuilt-in 2.4G Power Amplification
Built-in Betaflight OSD(SPI Control)
Built-in Current meter
Built-in 5V 1.5A BEC
Built-in voltage detection
Firmware target: MATEKF411RX
Yaw Degrees should set to “-90 degree” to match the flight direction
Onboard 4in1 ESCMCU upgraded to EFM8BB21
Power supply: 2-4S LiPo/LiPo HV (7v/17v)
Current: 20A continuous peak 25A (5 seconds)
Support BLHeliSuite programmable
Factory firmware: F_H_40_REV16_7.HEX
Default protocol: DSHOT600
Internal Frsky NON-EU receiver VersionSPI BUS receiver
Frsky D8/D16 compatibleCompatible Non EU transmitter both D8 mode and D16 mode
Channels: 8ch/16chDual antenna
Failsafe support
No ground interference ( Transmitter and receiver 1 m from the ground): 400m


Bind procedure:

  1. Make the on board receiver get into 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”
  2. Make your 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 .

SPI Receiver option:
Frsky_D compatible with Frsky D8 protocol
Frsky_X compatible with Frsky non-eu D16 protocol
Frsky_X_LBT compatible with Frsky EU-LBT D16 protocol (4.0.X or latest betaflight firmware support)
SFHSS compatible with Futaba S-FHSS protocol


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