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#Connect unipolar Stepper Motor coils to PA0, PA1, PA2 and PA3. Power from 5V
import time
from kuttyPy import *
seq = [12,6,3,9]
pos = 0
def rotateMotor (nsteps, direction):
global seq, pos
for k in range(nsteps):
if direction == 1:
pos = (pos + 1) & 3
else:
if pos == 0:
pos = 3
else:
pos -= 1
setReg(PORTA,seq[pos]) # set the uC register
print 'PORTA set to ',seq[pos]
time.sleep(.05)
setReg(DDRA,15) # make PA0 to PA3 as outputs
while 1:
rotateMotor(100, 1)
rotateMotor(100, 0)
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