Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
BeagleBone GPIO with Python Test
#!/usr/bin/python
import time
# Open up the pins and set mode in/out
# TODO: Error handling
outPin = file("/sys/class/gpio/export", "w")
outPin.write("%d" % (38))
outPin.close()
outPin = file("/sys/class/gpio/gpio38/direction", "w")
outPin.write("out")
outPin.close()
inPin = file("/sys/class/gpio/export", "w")
inPin.write("%d" % (70))
inPin.close()
inPin = file("/sys/class/gpio/gpio70/direction", "w")
inPin.write("in")
inPin.close()
#Open outPin for writing and inPin for reading:
outPin = file("/sys/class/gpio/gpio38/value", "w")
inPin = file("/sys/class/gpio/gpio70/value", "r")
try:
while True:
inPin.seek(0)
if inPin.read() =="1\n":
print "Button Pressed!\n"
outPin.write("1")
outPin.flush()
time.sleep(1)
outPin.write("0")
outPin.flush()
# Control+C will get us out of that loop and close the pins so that other apps can use:
except KeyboardInterrupt:
inPin = file("/sys/class/gpio/unexport", "w")
inPin.write("%d" % (38))
inPin.close()
outPin = file("/sys/class/gpio/unexport", "w")
outPin.write("%d" % (70))
inPin.close()
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment