Keeping LED constantly on with BeagleBone black and python

Question

I have a small circuit plugged into a Beaglebone Black,

What I would like is to keep a white LED constantly on.

If I run the following code the LED turns on briefly ad then turns off again.

import Adafruit_BBIO.GPIO as GPIO
import time

GPIO.setup("P8_14", GPIO.OUT)
GPIO.output("P8_14", GPIO.HIGH)

I have tried the following:

import Adafruit_BBIO.GPIO as GPIO
import time

GPIO.setup("P8_14", GPIO.OUT)
while True:
    GPIO.output("P8_14", GPIO.HIGH)

Which will keep it constantly on but I have a feeling its actually blinking to fast for me to see. And if for example I have a bunch of code in the while loop then it blinks again (assuming the time.sleep(1) represents code that takes a second to run):

GPIO.setup("P8_14", GPIO.OUT)
while True:
    GPIO.output("P8_14", GPIO.HIGH)
    time.sleep(1)

Is there anyway to say to a pin to be on constantly with Python ?

Thanks for your help,

Answer 1

P8_14 -- this is digital Input/Output pin. To setup a digital pin as an output, set the output value to HIGH, and then cleanup after you're done:

GPIO.setup("P8_10", GPIO.OUT)
GPIO.output("P8_10", GPIO.HIGH)
GPIO.cleanup()

For blink leds or turn it on use USR0, USR1, USR2 and USR3.

For blinking onboard leds try this example:

for i in range(4):
    GPIO.setup("USR%d" % i, GPIO.OUT)

while True:
    for i in range(4): # Turn Leds ON
        GPIO.output("USR%d" % i, GPIO.HIGH)
        time.sleep(1)
    for i in range(4): # Turn Leds Off
        GPIO.output("USR%d" % i, GPIO.LOW)
        time.sleep(1)