Pixhawk 6C Ports

Pin 1 starts from the flight controllers "right side" like diagram below

Power1 & 2

Pin

Signal

Voltage

1(red)

VDD5V_BRICK1 (in)

+5V

2(black)

VDD5V_BRICK1 (in)

+5V

3(black)

CURRENT1

+3.3V

4(black)

VOLTAGE1

+3.3V

5(black)

GND

GND

6(black)

GND

GND

Telem 1 Port

Pin

Signal

Voltage

1(red)

VCC

+5V

2(black)

UART7_TX(out)

+3.3V

3(black)

UART7_RX(in)

+3.3V

4(black)

UART7_CTS(in)

+3.3V

5(black)

UART7_RTS(out)

+3.3V

6(black)

GND

GND

Telem 2 Port

Pin

Signal

Voltage

1(red)

VCC

+5V

2(black)

UART5_TX(out)

+3.3V

3(black)

UART5_RX(in)

+3.3V

4(black)

UART5_CTS(in)

+3.3V

5(black)

UART5_RTS(out)

+3.3V

6(black)

GND

GND

Telem 3 Port

Pin

Signal

Voltage

1(red)

VCC

+5V

2(black)

USART2_TX(out)

+3.3V

3(black)

USART2_RX(in)

+3.3V

4(black)

NOT CONNECTED*

-

5(black)

NOT CONNECTED*

-

6(black)

GND

GND

* For Pixhawk 6C with SN number XXXX 001 XXXXXX (SN can be found on the packaging), Telem3 port is connected as follow:

  • pin 4 -> I2C4_SCL (3.3V)

  • pin 5 -> I2C4_SDA (3.3V)

Do not connect Non-I2C device (such as telemetry radio) to telem3 pin 4 & 5 if you have this version.

GPS 1 Port

Pin

Signal

Voltage

1(red)

VCC

+5V

2 black)

TX1(out)

+3.3V

3(black)

RX1(in)

+3.3V

4(black)

SCL1

+3.3V

5(black)

SDA1

+3.3V

6(black)

SAFETY_SWITCH

+3.3V

7(black)

SAFETY_SWITCH_LED

+3.3V

8(black)

IO_VDD_3V3

+3.3V

9(black)

BUZZER-

0~5V

10(black)

GND

GND

GPS2 Port

Pin

Signal

Voltage

1(red)

VCC

+5V

2 black)

UART8_TX(out)

+3.3V

3(black)

UART8_RX(in)

+3.3V

4(black)

I2C2_SCL

+3.3V

5(black)

I2C2_SDA

+3.3V

6(black)

GND

GND

USB Port

Pin

Signal

Voltage

1(red)

VBUS

+5V

2(black)

DM

+3.3V

3(black)

DP

+3.3V

4(black)

GND

GND

I2C Port

Pin

Signal

Voltage

1(red)

VCC

+5V

2(black)

I2C2_SCL*

+3.3V

3(black)

I2C2_SDA*

+3.3V

4(black)

GND

GND

* For Pixhawk 6C with SN number XXXX XXX 20221100 AND prior, (SN can be found on the packaging), I2C port is connected as follow:

  • pin 2 -> I2C4_SCL (3.3V)

  • pin 3 -> I2C4_SDA (3.3V)

CAN1 & CAN2 Port

Pin

Signal

Voltage

1(red)

VCC

+5V

2(black)

CAN1_H

+3.3V

3(black)

CAN1_L

+3.3V

4(black)

GND

GND

DSM RC Port (JST-ZH 1.5mm)

Pin

Signal

Voltage

1(yellow)

VDD_3V3_SPEKTRUM

+3.3V

2(black)

GND

GND

3(gray)

DSM/SPEKTRUM IN

+3.3V

PPM/SBUS RC port

Pin

Signal

Voltage

1(null)

VDD_5V_PPM_SBUS

+5V

2(yellow)

PPM&SBUS_IN

+3.3V

3(null)

RSSI_IN

+3.3V

4(red)

(NOT CONNECTED)

--

5(black)

GND

GND

SBus Out Port

Pin

Signal

Voltage

1(red)

(NOT CONNECTED)

--

2(yellow)

SBUS_OUT

+3.3V

3(black)

GND

GND

FMU PWM Out

PinSignalVoltage

1 (Red)

VDD_Servo

2 (Black)

FMU_CH1

+3.3V

3 (Black)

FMU_CH2

+3.3V

4 (Black)

FMU_CH3

+3.3V

5 (Black)

FMU_CH4

+3.3V

6 (Black)

FMU_CH5

+3.3V

7 (Black)

FMU_CH6

+3.3V

8 (Black)

FMU_CH7

+3.3V

9 (Black)

FMU_CH8

+3.3V

10(Black)

GND

GND

I/O PWM Out

PinSignalVoltage

1 (Red)

VDD_Servo

2 (Black)

IO_CH1

+3.3V

3 (Black)

IO_CH2

+3.3V

4 (Black)

IO_CH3

+3.3V

5 (Black)

IO_CH4

+3.3V

6 (Black)

IO_CH5

+3.3V

7 (Black)

IO_CH6

+3.3V

8 (Black)

IO_CH7

+3.3V

9 (Black)

IO_CH8

+3.3V

10(Black)

GND

GND

FMU Debug Port (JST SH 1mm Pitch)

PinSignalVoltage

1(red)

FMU_VDD_3V3

+3.3V

2 black)

FMU_USART3_TX

+3.3V

3(black)

FMU_USART3_RX

+3.3V

4(black)

FMU_SWD_IO

+3.3V

5(black)

FMU_SWD_CK

+3.3V

6(black)

SPI6_SCK_EXTERNAL1

+3.3V

7(black)

NFC_GPIO

+3.3V

8(black)

PH11

+3.3V

9(black)

FMU_nRST

+3.3V

10(black)

GND

GND

I/O Debug Port (JST SH 1mm Pitch)

PinSignalVoltage

1(red)

IO_VDD_3V3

+3.3V

2 black)

IO_USART1_TX

+3.3V

3(black)

(NOT CONNECTED)

--

4(black)

IO_SWD_IO

+3.3V

5(black)

IO_SWD_CK

+3.3V

6(black)

IO_SWO

+3.3V

7(black)

IO_SPARE_GPIO1

+3.3V

8(black)

IO_SPARE_GPIO2

+3.3V

9(black)

IO_nRST

+3.3V

10(black)

GND

GND

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