Any Sample Python Code For Bipoloar Stepper? - Raspberry Pi Forums

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i have been searching forever.

bought sainsmart st330 use motor driver board, along rpib+. controlling nema 17 bipolar 4 wire motor.
datasheet: http://www.sainsmart.com/zen/documents/ ... manual.pdf

have found many examples of python programs people using unipolar, 4 gpio pin based code, nothing 2 pin (step,dir) based stepper motor.

not looking alot of functionality test see going on , works.

much!

after research have come this, maybe can tell if i'm on right track. code i'm hoping 9 steps in 1 direction wait time in between each step.

code: select all

 #!/usr/bin/python # import required libraries import sys import time import rpi.gpio gpio  # use bcm gpio references # instead of physical pin numbers gpio.setmode(gpio.bcm)  #step pin gpio.setup(17,gpio.out) gpio.output(17, false)  #dir pin gpio.setup(22,gpio.out) gpio.output(22, false)  waittime = 1  count = 0 while (count < 9): # make 1 step         gpio.output(17, false)         time.sleep(waittime)         gpio.output(22, false)         gpio.output(17, true)         time.sleep(waittime)         count = count +1         print 'one step done , count is:', count print "good bye!"


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