Jetson Nano GPIO Header PINOUT

I2C and UART pins are connected to hardware and should not be reassigned. By default, all other pins (except power) are assigned as GPIO. Pins labeled with other functions are recommended functions if using a different device tree. Here’s a spreadsheet map to RPi to help.

Jetson Nano J41 Header
Sysfs GPIO Name Pin Pin Name Sysfs GPIO
  3.3 VDC
Power
1
2
5.0 VDC
Power
 
  I2C_2_SDA
I2C Bus 1
3
4
5.0 VDC
Power
 
  I2C_2_SCL
I2C Bus 1
5
6
GND  
gpio216 AUDIO_MCLK
7
8
UART_2_TX
/dev/ttyTHS1
 
  GND
9
10
UART_2_RX
/dev/ttyTHS1
 
gpio50 UART_2_RTS
11
12
I2S_4_SCLK
gpio79
gpio14 SPI_2_SCK
13
14
GND  
gpio194 LCD_TE
15
16
SPI_2_CS1
gpio232
  3.3 VDC
Power
17
18
SPI_2_CS0 gpio15
gpio16 SPI_1_MOSI
19
20
GND  
gpio17 SPI_1_MISO
21
22
SPI_2_MISO gpio13
gpio18 SPI_1_SCK
23
24
SPI_1_CS0 gpio19
  GND
25
26
SPI_1_CS1 gpio20
  I2C_1_SDA
I2C Bus 0
27
28
I2C_1_SCL
I2C Bus 0
 
gpio149 CAM_AF_EN
29
30
GND  
gpio200 GPIO_PZ0
31
32
LCD_BL_PWM gpio168
gpio38 GPIO_PE6
33
34
GND  
gpio76 I2S_4_LRCK
35
36
UART_2_CTS gpio51
gpio12 SPI_2_MOSI
37
38
I2S_4_SDIN gpio77
  GND
39
40
I2S_4_SDOUT gpio78
Jetson Nano, GPIO Pins
Jetson Nano J41 GPIO Pins – On this early board, note that pins labeled 6 & 8 should be
10 and 12. The silkscreen has been fixed in later versions.

Pin 1 is marked 1

Notes

  • Last Edited: May 22, 2019
  • 5-22-19 Add UART /dev/ttyTHS1
  • 5-22-19 Add Rpi Spreadsheet helper (thanks Stephen Warren from NVIDIA!)
  • 5-12-19 Add formal signal names. Added color coding.
  • 3-25-19 – Preliminary. Formal signal names may be incorrect (I2C), missing descriptions and colors are incorrect.
  • Added Bus information for I2C