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GPIO Description

The Jetson.GPIO library of the Jetson series motherboards allows developers to interact with external hardware devices through the 40-pin GPIO pins.

1. GPIO numbering​

Jetson.GPIO library supports two common numbering modes: BOARD and BCM mode

note

Note: The tutorial only demonstrates GPIO.BOARD mode

ModeNumbering method
GPIO.BOARDNumbering based on physical pins (1-40)
GPIO.BCMGPIO logical numbering based on Broadcom chips (directly corresponding to the GPIO channels on the hardware chip)

2. GPIO pins​

2.1. GPIO.BOARD mode​

One-to-one correspondence between BOARD mode pins and 40Pin pins on the motherboard:

image-20250108121230644

2.2. GPIO.BCM mode​

One-to-one correspondence between BCM mode pins and 40Pin pins on the motherboard:

image-20250109153031466

3. Other pins​

12Pin pin description under the Jetson core board:

image-20250109161945494