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executable file 21 lines (16 sloc) 444 Bytes
#!/usr/bin/env python3
from itertools import cycle
from time import sleep
from quick2wire.gpio import pins, Out
pins = [pins.pin(i, Out) for i in range(8)]
try:
for p in pins:
p.open()
for count in cycle(range(256)):
bitset = [int(count & (1<<n) > 0) for n in range(8)]
for (pin, value) in zip(pins, bitset):
pin.value = value
sleep(0.5)
finally:
for p in pins:
p.close()