Omnibus F4 Pinout

Omnibus F4 is a new family of All-In-One (AIO) STM32F4 based flight controllers with integrated OSD (On-Screen-Display) for FPV purposes. Basically, it is Airbot F4 / Flip32 F4 with added MAX7456 and some minor tweaks.

  • OSD connected via SPI bus
  • VCP port
  • 3 UART ports, UART3 is shared with I2C
  • Hardware inverter on UART1 allows to connect S.Bus receivers
  • Dedicated PPM/S.Bus connector
  • DSMX connecter
  • PWM connector that allows to connect 4 PWM channels
  • Integrated voltage stabilizer and voltage monitoring
  • Analog current monitoring
  • Analog RSSI monitoring
  • Buzzer connector
  • Integrated 16MB Blackbox flash memory

Currently, only Betaflight and Raceflight (?) supports OSD on this board. INAV OSD support is on its way.


  • RAM pins are connected only to each other. For OSD only GND and Video IN and Video OUT lines have to be connected with camera and VTX
  • Integrated voltage stabilizer tends to get hot when powered from 4S. Do not try to power camera or VTX from it
  • Current and RSSI are NOT 5V tolerant. 3.3V max
  • S.Bus and DSMX are shared with UART1
  • To use UART1 and PPM, SBUS jumper has to be removed

Airbot Omnibus F4 Bottom What is where

Omnibus F4 can be purchased as Airbot Omnibus F4, Flip32 F4 Omnibus and “no-name” from Banggood and other Chinese shops.

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