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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

Pin
Signal
Voltage
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

Pin
Signal
Voltage
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)

Pin
Signal
Voltage
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)

Pin
Signal
Voltage
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