Pinout

AeroF4 has both Connector (Solder Free) and SMD Pad options for easy integration

Note: The AeroF4 uses standard FPV pinout (JST-SH 3, 4, 6, 7, and 8-pin or user-defined).

AeroF4 Back

Camera Connector

Pin	Signal	Description
1	9V	Camera Power Output
2	GND	Ground
3	CAM	Analog Video Input

4-in-1 ESC Connector

Pin	Signal	Description
1	VCC	5V or VBAT (configurable)
2	GND	Ground
3	Current Sense	Analog current input
4	UART6_RX	ESC Telemetry (Rx)
5	M1	Motor 1 PWM
6	M2	Motor 2 PWM
7	M3	Motor 3 PWM
8	M4	Motor 4 PWM

GPS Connector

Compatible with AeroNAV Series GPS

Pin	Signal	Description
1	5V	Power for GPS
2	UART3_TX	GPS TX
3	UART3_RX	GPS RX
4	I2C1_SCL	Magnetometer SCL
5	I2C1_SDA	Magnetometer SDA
6	GND	Ground

Digital FPV Connector (DJI / Walksnail)

Pin	Signal	Description
1	9V	Power Output
2	GND	Ground
3	UART1_TX	FPV TX
4	UART1_RX	FPV RX
5	GND	Additional Ground
6	UART5_RX	FPV Link Telemetry RX

VTX Connector (Analog)

Pin	Signal	Description
1	9V	Power Output
2	GND	Ground
3	UART2_TX	VTX Control (SmartAudio)
4	VIDEO IN	Analog Video Input

PWM Pads

PWM Label	Pin	Timer Channel	Notes
M1	PB4	TIM3_CH1
M2	PB5	TIM3_CH2
M3	PB0	TIM3_CH3
M4	PB1	TIM3_CH4

UARTx BUS

UART	TX Pin	RX Pin	Notes
UART1	PA9	PA10	GPS / Telemetry
UART2	PA2	PA3
UART3	PB10	PB11	Shared with I²C2
UART4	PA0	PA1
UART5	PC12	PD2
UART6	PC6	PC7

I2C BUS

Bus	SCL	SDA	Notes
I²C1	PB8	PB9	Magnetometer / Baro
I²C2*	PB10	PB11	*Shared with UART3

SPI BUS

SPI Bus	SCK	MISO	MOSI	CS	Usage
SPI1	PA5	PA6	PA7	PA4	IMU (MPU6000 / ICM-42688)
SPI2	PB13	PB14	PB15	PB12	Flash
SPI3	PC10	PC11	PC12	PC9	OSD (MAX7456EUI+)

Voltage & Current

Function	Pin	Notes
Voltage Sense	PC1	ADC123_IN11
Current Sense	PC0	ADC123_IN10

Buzzer & LED

Function	Pin	Notes
LED 1	PC2	Status / Arm
LED 2	PC3	GPS Lock / Aux
Buzzer	PC13	Active High