Difference between revisions of "CrazybeeF4Pro"

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==Powering the Board==
=Examples of Airborne Equipment Electrical Connections=
==Quadcopter, PWM Motor Controllers==
==Transitioning vehicle==
=R/C Receivers=
==Using a Serial out Spektrum DSM receiver==
==CPPM receiver==
==Using a S-Bus receiver==
==UART I/O==
==USB as UART TX==
    None :(
==Components Layout==
==Bill Of Material==
=PCB and assembled boards suppliers=
=Mechanical Dimensions=
=Get the design=
The design is not open, but resembles a lot the Omnibus design
=Uploading new software=
==Using bootloader==
==Using SWD==
==Serial Firmware Upload==
=Hardware Revision History=
Changes Between v1.0 , v2.0, v2.1 and v3.0


Revision as of 06:29, 18 December 2019

Crazybee F4 Pro

Crazybee F4 Pro


The Crazybee F4 Pro Flightcontroller is a re-design of a common Omnibus F4 FC. There are different models with an embedded RC radio receiver. The Crazybee F4 Pro has embedded four ESC's to drive 4x brushless motors as commonly found on small racing quadcopters like the Trashcan Trashcan


  • MCU: STM32F411CEU6 (100MHZ, 512K FLASH)
  • Sensor: MPU-6000(SPI connection)
  • Board size: 28.5 * 28.5MM
  • Power supply: 1-2S battery input (DC 3.5-8.7V) altenative PCB with 2s-4s exist
  • Built-in 6A(each) Blheli_S 4in1 ESC
  • Built-in OSD SPI Control
  • Built-in Current meter Max 28A
  • Built-in 5V 1A Buck Boost with LC filter
  • Built-in voltage measure
  • BLHELI_S pass-through Ready
  • Taillight LED Ready
  • Onboard 4in1 ESC MCU upgraded to EFM8BB21


The Flightcontroller exists in four different PCB variations

  • CrazyBeeF4FRPro for use with Frsky
  • CrazyBeeF4DXPro for use with Spektrum
  • CrazyBeeF4Pro Without receiver
  • CrazyBeeF4FSPro with Nordic chip for Flysky


There are different versions of almost the same board V1,V2, V2.1 and V3. The differences in the table below:


Spiking power on the board when plugging in a 2s battery could lead to a broken board on the original design. To preven this from happening as add a capacitor to the battery lead. This capacitor should have an ESR lower than 0.2ohm and have a capacitance of 100uF or higher. A Rubycon ZLG/ZLH series and Samyoung NXB series.

Connect additional devices

Crazybee F4 Pro Crazybee F4 Pro Crazybee F4 Pro


Crazybee F4 Pro


Wifi Module

JeVois camera


To bind with your TX follow these steps

1. Connect battery 1. Pres an hold the bind button for about 2 seconds until the LED lits continuous 1. Enter the bind mode via your transmitter menu or bind button 1. The LED starts blinking as soon as binding was successful 1. Disconnect, then connect battery again, start flying

Debug connection

Per default the CrazyBee F4 Pro has no debug pin like SWD broken out to a connector or solderpad. One has to solder a tiny wire directly to the MCU. Like this:

Crazybee F4 Pro


One can buy one here:


This wiki is not the only place to get some info about the Hardware since the board can also be used for other flight stacks.


An airframe using this board is:

  • OpenUAS Trashcan





Powering the Board


Examples of Airborne Equipment Electrical Connections

Quadcopter, PWM Motor Controllers


Transitioning vehicle

R/C Receivers

Using a Serial out Spektrum DSM receiver


CPPM receiver


Using a S-Bus receiver





   None :(


Components Layout

Bill Of Material

PCB and assembled boards suppliers

Mechanical Dimensions

Get the design

The design is not open, but resembles a lot the Omnibus design

Uploading new software

Using bootloader

Using SWD

Serial Firmware Upload

Hardware Revision History

Changes Between v1.0 , v2.0, v2.1 and v3.0