Dec.2018 Rev 1.0
www.getfpv.com
Wiring (INAV Airplane)
Pins Definitions (BF & INAV)
S1
S2 ......S3/S4/S5/S6
Battery
Battery
Battery
Battery
Battery
Battery
G
5V
DA
CL
Digital
Airspeed
G
5V
SDA
SCL
10~100K ohm
10~100K ohm
G
5V
PA4
Analog
Airspeed
G
5V
Analog
*** Enable
softserial_tx1 on T2 pad
for saving one Uart
MCU
STM32F722RET6
***
SBUS/IBUS/DSM can be connected to any unused UART_RX
***
FPort, SmartPort can be connected to any unused UART_TX
*** PPM share R2 pad, must disable Serial RX on UART2
Gnd
5V
CH1
CH2
CRSF
G
4V5
R2
T2
Gnd
5V
FPORT
FPORT
G
4V5
T2
Gnd
5V
PPM/IBUS
PPM/IBUS
G
4V5
R2
G
4V5
R2
T2
Gnd
5V
SBUS
SmartPort
SBUS
Camera-1
Camera-2
HD
BetaFlight BetaFlight
INav
INav
INav
INav
INav
Octo
Quad
Tricopter Quad X
Hex X
Flying Wing Airplane
S1
PB4
TIM3_CH1
motor-1
motor-1
motor-1 motor-1 motor-1
servo
servo
S2
PB5
TIM3_CH2
motor-2
motor-2
motor-2 motor-2 motor-2
servo
servo
S3
PB0
TIM3_CH3
motor-3
motor-3
motor-3 motor-3 motor-3
servo
S4
PB1
TIM3_CH4
motor-4
motor-4
motor-4 motor-4
servo
S5
PA15
TIM2_CH1
motor-5
motor-5
servo
S6
PB3
TIM2_CH2
motor-6
motor-6
servo
S7
PB6
TIM4_CH1
motor-7
servo
servo
servo
motor-1
motor-1
S8
PB7
TIM4_CH2
motor-8
servo
servo
motor-2
motor-2
LED PA8
TIM1_CH1
2812LED
2812LED
2812LED 2812LED 2812LED
2812LED
2812LED
R2
PA3 TIM9_CH2
R2/ppm
R2/ppm
R2/ppm R2/ppm R2/ppm
R2/ppm
R2/ppm
T2
PA2 TIM9_CH1 T2/pwm1
T2/pwm1
R4
PA1 TIM5_CH2
R2/pwm2
Cam_Ctrl
R2/pwm2
Cam_Ctrl
T4
PA0 TIM5_CH1 T4/pwm3
T4/pwm3
PA4 PA4
ADC
/
/
AirSpeed AirSpeed
Pad
Hole
Pin
name
Function
UBEC
Gnd
Vbat
Gnd
5V
TLM
4V5
G
T1
R1
DA
CL
