前言
為了要手動在terminal下操作gpio。
Command list:
path:
/sys/class/gpio
extract the target gpio: (ex gpio 0-6)
echo 6 > /sys/class/gpio/export
set pin direction:
echo "in" > /sys/class/gpio/gpio6/direction
echo "out" > /sys/class/gpio/gpio6/direction
set pin value:
echo 1 > /sys/class/gpio/gpio6/value
echo 0 > /sys/class/gpio/gpio6/value
reference:
http://falsinsoft.blogspot.tw/2012/11/access-gpio-from-linux-user-space.html
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