Jetson Orin Nano Expansion Header J12 Pinout
By default, I2C and UART pins are assigned. All other pins (except power and ground) are assigned as GPIO. Pins labeled with other functions below are suggested functions.
Sysfs GPIO | Name | Pin | Pin | Name | Sysfs GPIO |
---|---|---|---|---|---|
3.3 VDC
Power |
1
|
2
|
5.0 VDC
Power |
||
I2C1_SDA
I2C Bus 7 |
3
|
4
|
5.0 VDC
Power |
||
I2C1_SCL
I2C Bus 7 |
5
|
6
|
GND | ||
144
gpio492 |
GPIO9
AUDIO_MCLK |
7
|
8
|
UART1_TX
/dev/ttyTHS0 |
|
GND |
9
|
10
|
UART1_RX
/dev/ttyTHS0 |
||
112
gpio460 |
UART1_RTS |
11
|
12
|
I2S0_SCLK |
50
gpio398 |
122
gpio470 |
SPI1_SCK |
13
|
14
|
GND | |
85
gpio433 |
GPIO12
Alt: PWM |
15
|
16
|
SPI1_CS1 |
126
gpio474 |
3.3 VDC
Power |
17
|
18
|
SPI1_CS0 |
125
gpio473 |
|
135
gpio483 |
SPI0_MOSI |
19
|
20
|
GND | |
134
gpio482 |
SPI0_MISO |
21
|
22
|
SPI1_MISO |
123
gpio471 |
133
gpio481 |
SPI0_SCK |
23
|
24
|
SPI0_CS0 |
136
gpio484 |
GND |
25
|
26
|
SPI0_CS1 |
137
gpio485 |
|
I2C0_SDA
I2C Bus 1 |
27
|
28
|
I2C0_SCL
I2C Bus 1 |
||
105
gpio453 |
GPIO01 |
29
|
30
|
GND | |
106
gpio454 |
GPIO11
|
31
|
32
|
GPIO07
Alt: PWM |
41
gpio389 |
43
gpio391 |
GPIO13
Alt: PWM |
33
|
34
|
GND | |
53
gpio401 |
I2S0_FS |
35
|
36
|
UART1_CTS |
113
gpio461 |
124
gpio472 |
SPI1_MOSI |
37
|
38
|
I2S0_SDIN |
52
gpio400 |
GND |
39
|
40
|
I2S0_SDOUT |
51
gpio399 |
Notes
I2C
Pins 3 and 5 are on I2C bus 7
For detection:
$ sudo i2cdetect -y -r 7
Pins 27 and 28 are on I2C bus 1. For detection:
$ sudo i2cdetect -y -r 1
On I2C bus 1, there are existing devices on 0x40, 0x25. These are denoted as UU by i2cdetect
4-26-2023 – Preliminary
- Same layout as Xavier NX
- There are two GPIO bases 316 & 348. All pins are based from 348
- First number is the GPIO number within a GPIO controller
- Second ( gpioXXXX ) is the global Linux GPIO number
- Pin 15 – When configured as PWM:
- PWM chip sysfs directory: /sys/devices/3280000.pwm
- PWM ID within PWM chip: 0
- Pin 33 – When configured as PWM:
- PWM chip sysfs directory: /sys/devices/32c0000.pwm
- PWM ID within PWM chip: 0