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 | |
8 and 10. 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