Note: Please upgrade the compatible R9M / R9M Lite module with the latest firmware simultaneously, and rebind the devices after the update.

The FrSky 900MHz R9 MM-FC (OMNIBUS F4 Fireworks V2) uses the ICM20608 over SPI to produce stable flight performance. Integrated with the R9 MM receiver mounted on-board protection box, and the ICM20608 runs perfectly under 32k Gyro loop. Also onboard are a barometer and AB7456 OSD chip for the Betaflight integrated OSD.

The R9 MM-FC (OMNIBUS F4 Fireworks V2) supports 3-6s Lipo direct input, built-in hall Current Sensor and Power Filter as well. The on Board PDB is tweaked by using 12-Layer PCB design. There is only 0.2-0.5 mohm internal resistance from input to each output pad.

 

Features

•  Tantalum Capacitors can be added to the board (not included)
•  Solder pads added for VTX and Camera Control (next to Video pads)
•  The orientation of IMU FPC optimized
•  Gyro ribbon cable redesigned to fit without extending outside the board
•  Added an 8v BEC and LC Filter for the camera and VTX power
•  This board now has 5 UART ports

 

Specification

•  STM32 F405 MCU, Runs Betaflight firmware (supported from v3.2)
•  FrSky R9 MM receiver in protection box
•  ICM20608 over SPI Bus in dampening box (optional MPU6000)
•  30.5×30.5 mm mounting holes
•  Supports Lipo direct plug-in (3-6S)
•  Built-in sensor damper
•  Supports 5V 1A BEC output (Buck)
•  Supports 8V 1A BEC with LC filter output for the camera and VTX (Buck)
•  STM32 controls OSD chip over SPI in DMA mode (Betaflight OSD)
•  Built-in hall Current Sensor
•  Built-in Professional Level PDB
•  More caps to reduce power noise

 

Download FrSky R9 MM-FC (OMNIBUS F4 Fireworks V2) Relevant Files

 

Q: How to setup the F.Port for R9 MM-FC (OMNIBUS F4 Fireworks V2)?

A: Choose and flash the FW in Betaflight: OMNIBUSF4FW

      Paste command to CLI:

resource SERIAL_TX 11 C08

resource SERIAL_RX 11 C09

feature SOFTSERIAL

feature TELEMETRY

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

save