Fritzing

Raspberry Pi Simple LED

pi@rpi ~ $ echo 25 > /sys/class/gpio/export

pi@rpi ~ $ cd /sys/class/gpio/gpio25/

pi@rpi /sys/class/gpio/gpio25 $ echo out > direction

pi@rpi /sys/class/gpio/gpio25 $ echo 1 > value

pi@rpi /sys/class/gpio/gpio25 $ echo 0 > value