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boochow/test-rpi-gpio.sh

Created January 13, 2018 11:23
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test-rpi-gpio.sh
pi@pi-zero-w:~ $ echo 4 > /sys/class/gpio/export
pi@pi-zero-w:~ $ ls /sys/class/gpio/
export gpio4 gpiochip0 unexport
pi@pi-zero-w:~ $ echo out > /sys/class/gpio/gpio4/direction
pi@pi-zero-w:~ $ echo 1 > /sys/class/gpio/gpio4/value
pi@pi-zero-w:~ $ echo 0 > /sys/class/gpio/gpio4/value
pi@pi-zero-w:~ $ echo 4 > /sys/class/gpio/unexport
pi@pi-zero-w:~ $ ls /sys/class/gpio/
export gpiochip0 unexport
pi@pi-zero-w:~ $
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