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FrSky Electronic Co., Ltd www.frsky-rc.com Contact us : [email protected] Add:F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: [email protected]
FrSky Electronic Co., Ltd www.frsky-rc.com Contact us : [email protected] Add:F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: [email protected]
Introduction (OMNIBUS F4 Fireworks V2)The FrSky 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.
Overview
TX1 / DSM2 / S.port
TX3 / SCL
TX6
5V_USB
Buzzer +
5V_BEC
VB
ATE
SC
Tel
emet
ry /
RX
4G
ND
No
Con
nec
M1
M2
M3
M4
RX1
RX3 / SDA
RX6
SBUS
Power 8vSmart AudioVideo output
Video GND
Camera ControlVideo input
Buzzer -
LED Strips
3.3v
5V_BEC
GND
RSSI Input
Gyro socket 1
• 5V_BEC only has power when LIPO pluged in• 5V_USB has power anyway, < 500ma • 3.3v output < 200ma
4in1 ESC socket USB1
TX1 / DSM2 / S.port
Boot 0 Button
TX3 / SCL
TX6
5V_USB
Buzzer +
5V_BEC
RX1
RX3 / SDA
RX6
SBUS
Buzzer -
LED Strips
SPI Socket (SPI3)to use this port for gyro:set gyro_to_use = SECOND
Power 8vSmart AudioVideo output
Video GNDCamera Control
Video input
Specification• 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• More caps to reduce power noise.• STM32 F405 MCU, Runs Betaflight firmware (supported from v3.2)• 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
Features• Tantalum Capacitors can be added to the board (not included)• The orientation of IMU FPC optimized• This board now has 5 UART ports• Solder pads added for VTXand Camera Control (next to Video pads)• Gyro ribbon cable redesigned to fit without extending outside the board• Added an 8v BEC and LC Filter for the camera and VTX power
Resources
Function Solder Pad Silk screen Resouces MCU Pin Notes
SBUS RC UART1 PA10 Build-in invertera
DSM2 TX1 UART1 PA9 CLI serialrx_halfduplex set to ON
Smart Audio VTX S/A UART2 PA2
Smartport TX1 Software serial PA9 Invalid when using DSM2 RX
ESC Telemetry RX4 UART4 PA1
Camera Control CAM_C PB9
IIC2_SDA RX3 UART3 PB11
IIC2_SCL TX3 UART3 PB10
GPS RX6/TX6 UART6 PC7/PC6
WS2812B LED LED PB6
Buzzer Bz-/Bz+ PB4
Current sensor scale 175
Current sensor offset -19700 (±2000)
Current rangedefault 150A
extended by sample resistor up to 320A
Introduction (OMNIBUS F4 V6)The FrSky 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.The R9 MM-FC (OMNIBUS F4 V6) supports 3-6s Lipo direct input, and has 5 hardware UARTs.
Overview
Ext. Gyro Socket
Motor1+2 Servo 1-4
RX5 RX5 BEC BEC BEC BEC
GND GND GND GND GND GND
GND
4in1
soc
ket
S4S3S2S1NC
GNDRX4
VBAT
Vin
Vout
CAM_C
S/A(TX1)
SBUS
TX2
Buzzer +
Buzzer -
LED
RSSI
RX4
Current
5V_D
C5V
_BE
C3.
3VG
ND
S.Port
RX1
TX3
RX3
TX6
RX6
SCL
SDA
8V
GND VBAT
S6 S5 S4 S3 S2 S1
USB1BOOT
SPI3 + TX2(5V Power)D+
D-
SW
C
SW
D
Vin
Vout
CAM_C
S/A(TX1)
GNDVBAT
4in1
soc
ket
Gra
upne
r RX
GP
S
VBATRX4GNDNC
S4S3S2S1
SDA
SCL
5V_USB
GND
TX6
RX6
TX3
TX6
SBUS
5V_USB
GND
VB
US
3.3V
-MC
U
GN
D 5V CS
SC
KM
ISO
MO
SI
TX1
Manual for R9 MM-FC (OMNIBUS F4 Fireworks V2)/(OMNIBUS F4 V6)/(OMNINXT F7) Manual for R9 MM-FC (OMNIBUS F4 Fireworks V2)/(OMNIBUS F4 V6)/(OMNINXT F7)
Manual for R9 MM-FC (OMNIBUS F4 Fireworks V2)/(OMNIBUS F4 V6)/(OMNINXT F7) Manual for R9 MM-FC (OMNIBUS F4 Fireworks V2)/(OMNIBUS F4 V6)/(OMNINXT F7)
FrSky is continuously adding features and improvements to our products. To get the most from your product, please check the download section of the FrSky website www.frsky-rc.com for the latest update firmware and manuals.
FrSky Electronic Co., Ltd www.frsky-rc.com Contact us : [email protected] Add:F-4,Building C, Zhongxiu Technology Park, No.3 Yuanxi Road, Wuxi, 214125, Jiangsu, China Technical Support: [email protected]
Specification• FrSky R9 MM receiver in protection box• MPU6000 over SPI Bus in dampening box• 30.5×30.5 mm mounting holes• Supports Lipo direct plug-in (3-6S)• STM32 F405 MCU, Runs Betaflight firmware (supported from v3.2)• 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)
Resources
Function
SBUS
DSM2
Smart Audio VTX
Smartport
ESC Telemetry
Camera Control
IIC2_SDA
IIC2_SCL
GPS
WS2812B LED
Buzzer
Notes
Build-in inverter
CLI serialrx_halfduplex set to ON
Invalid when using DSM2 RX
Resouces
UART1
UART1
UART2
Software serial
UART4
UART3
UART3
UART6
Solder Pad Silk screen
RC
TX1
S/A
TX1
RX4
CAM_C
RX3
TX3
RX6/TX6
LED
Bz-/Bz+
MCU Pin
PA10
PA9
PA2
PA9
PA1
PB9
PB11
PB10
PC7/PC6
PB6
PB4
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.
Introduction (OMNINXT F7)The FrSky R9 MM-FC (OMNINXT F7) is developed based on the newly designed NXT architecture. It is integrated with the R9 MM receiver mounted in a dampening box, and uses the trusty MPU6000 Gyro with an additional ICM20608 on top. With the on-board protection box, the gyros run perfectly on 32k loop time. The NXT also comes with 2 different BECs and 6 UARTs.The R9 MM-FC (OMNINXT F7) supports 3-6s Lipo direct input, built-in BEC for camera / VTX and Power Filter. This FC is designed to be able to pair with 4in1 ESCs to form a powerful combo, and also has pins for individual ESCs.
Overview
• 5V_BEC only has power when LIPO pluged in• 5V_USB has power anyway, <500ma• 3.3v output < 200ma
VBAT
S.Port
TX2
TX3
TX4
TX6
SCL1
RSSI
Buzzer-
5V_D
C5V
_US
BG
ND
SBUS
RX2
RX3
RX4
RX6
SDA1
Ext.ADC
WS2812B
3.3V
Motor1+2 Servo 1-4
RX5 RX5 BEC BEC BEC BEC
GND GND GND GND GND GND
S6 S5 S4 S3 S2 S1
Ext. Gyro SocketBOOT
GN
DVin
Vout
CAM_C
S/A(TX1)
8V4i
n1 s
ocke
t
S4S3S2S1NC
GNDRX5
VBAT
RX5 Current
RX
5C
RN
T
Short to use ESC Telemetryon 4in1 SocketShort to use ADC Currentreading on 4in1 Socket
S7
S8
Specification• F7 MCU processors• FrSky R9 MM receiver in dprotection box• Two gyros onboard: MPU6000 for sampling up to 8khz and ICM20608 for sampling up to 32khz• 30.5×30.5mm Mounting holes• Supports 3-6S Lipo• More caps to reduce power noise• Built-in sensor damper• Built-in 5V 1A BEC output (Buck)• Built-in 8V 1A BEC with LC filter output for the camera and VTX (Buck)• STM32 controls OSD chip over SPI in DMA mode (Betaflight OSD)• Port for easy connection to 4-in-1 esc (SH1.0 8P)• Solder pads added for VTXand Camera Control (next to Video pads)
Function Solder Pad Silk screen
SBUS Any UART RX
DSM2 Any UART
Smart Audio VTX S/A UART1 PB6
Smartport Any UART TX as half duplex
ESC Telemetry RX5 UART5 PD2
Camera Control CAM_C PB15
IIC1_SDA SDA PB9
IIC1_SCL SCL PB8
GPS Any UART
WS2812B LED LED PA9
Buzzer Bz-/Bz+ PC13
Current sensor scale NONE
Current sensor offset NONE
Current range NONE
Resources
Resouces MCU Pin Notes
• R9 MM Receiver• Gyro #1: MPU6000 8kHz• Gyro #2: ICM20608 32kHz• STM32 F7 MCU Processor• Integrated PDB & OSD (SPI/DMA)• 6UART Ports• Direct plug-in 3-6S Lipo• 5V 1000mA BEC• 8V 1000mA BEC with LC filter• 3V max. 200mA
Features
D+
D-
SW
C
SW
DV
BU
S3.
3V-M
CU
SPI3 + TX2(5V Power)
S.PortSBUS
TX2RX2TX3RX3TX4RX4
RSSIExt.ADC
-Buzzer-WS2812B
SCL1SDA1
TX6S7
RX6S8
S/A(TX1)
Vin
Vout
CAM_C
4in1
soc
ket
S4S3S2S1NCGNDRX5VBAT
GN
D 5V CS
TX2
MO
SI
MIS
OS
CK