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OMNIBUS F4 Nano V7 control board by Airbot with integrated FrSky R9MM receiver

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1 Item

Price without tax 1 149 Kč

Price with tax1 149 Kč

Overview table of FrSky receivers here .


  • R9MM receiver
  • Tantalum condensers
  • Pads for control & nac cameras and VTX
  • STM32 F405 MCU
  • Gyro: ICM20608 32kHz
  • Baro
  • Integrated OSD (SPI / DMA)
  • 6 UART ports
  • 3-6S Lipo
  • BEC 5V, 3A
  • telemetry


  • Hardware: STM32 F405 CPU
  • Channels: 16 (CH8 is RSSI) FPort to UART2
  • Dimensions: 20mm x 20mm x 13mm (20mm holes)
  • antenna connectors connected: yes, Ipex4
  • S.Port: yes
  • OSD: yes
  • SBUS: no
  • analog port: no
  • Pin voltage measurement: yes
  • voltage: 3-6S LiPo
  • consumption: 200 mA @ 3 V
  • Range: up to 10 km
  • updatable firmware
  • Compatibility: R9


The factory control board includes BetaFlight software for Omnibus F4.

Receiver configuration:
  • Set UART2 to SerialRX in the ports
  • in configuration - receiver mode Serial-based receiver and FrSky Fport, turn off RSSI ADC Analog RSSI input

The supplied version of betaflight software allows PID tuning via radio. The LUA script FC.lua is loaded into the radio with OpenTX min version 2.2 and the settings can be changed via it.

FPort - If you lose your settings, such as after an update, you can use the following reset commands:

resource SERIAL_TX 11 C08

resource SERIAL_RX 11 C09



serial 0 0 115200 57600 0 115200

serial 30 64 115200 57600 0 115200

set serialrx_ provider = FPORT

set serialrx_ inverted = OFF

set serialrx_halfduplex = ON


We bring the transmitter into pairing mode. Press and hold the pairing button, turn on the power, wait 2 to 4 seconds. Successful pairing is accompanied by a green LED and the red one flashes. Disconnect the power and release the button. If that doesn't work, try the process again, but increase the space between the transmitter and receiver to 1-2 m.

LED indication

LED Significance
red flashes slowly no signal
green lights connected paired data transfer
green lights red fast flashing paired
green lights red lights waiting for pairing


A very important function of the X-Series receivers is the failsafe mode, which allows the model to be set to the desired mode in the event of a signal failure.

Doporueni pomoci receivers

Pair the receiver. Set the channels to the desired position, briefly press the F / S button (for less than 1 s). The green LED flashes twice to confirm. To turn off the filesafe function, pair the receiver again. To set pulses not to transmit when the signal is lost - switch off the transmitter and start the receiver, briefly press the F / S button (for less than 1 s).

Transmitter help settings
In addition to several failsafe modes, Taranise can also set up a completely individual filesafe via the transmitter - custom . It is then automatically sent to the receiver in 9-second cycles.

If failsafe is not set, the receiver holds the last channel positions from signal loss. You can reset the receiver by resetting the receiver.

On all items we offer warranry 24 months.
Spare parts and battries capacity 6 months.


We provide warranty and post warranty services.


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