Aaeon SRG-IMX8P, User Manual, Page: 37 / 57

Chapter 3 – Gateway Setup and Configuration 25
IO
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3.3 I/O Management
This section will show you how to operate the I/O function.
Control GPIO
Command:
gpionum: 85
Set GPIO direction:
E.g.
echo 85 > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio85/direction
Set GPIO ON:
E.g.
echo 1 > /sys/class/gpio/gpio85/value
Set GPIO OFF:
E.g.
echo 0 > /sys/class/gpio/gpio85/value
When successful, output will display as below.