[原创]用树莓派的GPIO口控制LED闪烁

[ ! -d /sys/class/gpio/gpio7/ ] && echo 7 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio7/direction

for i in `seq 1 10000`;do
 echo 0 > /sys/class/gpio/gpio7/value
 sleep 1
 echo 1 > /sys/class/gpio/gpio7/value
 sleep 1
done