[Sticky] FrSky R9 MM-FC ONMIBUS F4 V6 868MHz

The FrSky 900MHz/868MHz R9 MM-FC (OMNIBUS F4 V6) uses the MPU6000 over SPI to produce stable flight performance. Integrated with the R9 MM receiver mounted on-board in a protection box. It also features a barometer and AB7456 OSD chip for the Betaflight integrated OSD.

Features:

• R9 MM Receiver
• STM32 F4 Processor
• MPU6000 Gyro via SPI
• BMP280 Barometer
• Integrated Betaflight OSD
• 5 UART Ports
• Direct plugin 3-6S Lipo
• Built in LC Filter
• 5V 1000mA BEC
• 8V 1000mA BEC
• More caps to reduce gyro power noise

Specification:

• STM32 F405 MCU, Runs Betaflight firmware (supported from v3.2)
• FrSky R9 MM receiver in protection box
• MPU6000 over SPI Bus
• 30.5×30.5 mm mounting holes
• Supports Lipo direct plug-in (3-6S)
• 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)
• The R9 MM-FC (OMNIBUS F4 V6) supports 3-6s Lipo direct input, and has 5 hardware UARTs

All files relating to the R9 MM-FC ONMIBUS F4 V6 including manuals and firmware updates can be found here:  https://www.frsky-rc.com/r9-mm-fc-omnibus-f4-fireworks-v2/