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Code: Alles auswählen

Traceback (most recent call last):
File "/home/pi/Desktop/Projekts/stepper.py", line 21, in <module>
    Seq[4] = [0,0,1,0]
IndexError: list assignment index out of range

Code: Alles auswählen

import RPi.GPIO as GPIO
import time
 
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
 
#enable_pin = 18    # nur bei ULN2003 Treiber IC wichtig
coil_A_1_pin = 24   # pink
coil_A_2_pin = 25   # orange
coil_B_1_pin = 8    # blau
coil_B_2_pin = 7    # gelb
 
# anpassen, falls andere Sequenz
StepCount = 4
Seq = []
Seq = range(0, StepCount)
Seq[0] = [1,0,0,0]
Seq[1] = [1,1,0,0]
Seq[2] = [0,1,0,0]
Seq[3] = [0,1,1,0]
Seq[4] = [0,0,1,0]
Seq[5] = [0,0,1,1]
Seq[6] = [0,0,0,1]
Seq[7] = [1,0,0,1]
 
#GPIO.setup(enable_pin, GPIO.OUT)
GPIO.setup(coil_A_1_pin, GPIO.OUT)
GPIO.setup(coil_A_2_pin, GPIO.OUT)
GPIO.setup(coil_B_1_pin, GPIO.OUT)
GPIO.setup(coil_B_2_pin, GPIO.OUT)
 
#GPIO.output(enable_pin, 1)
 
def setStep(w1, w2, w3, w4):
    GPIO.output(coil_A_1_pin, w1)
    GPIO.output(coil_A_2_pin, w2)
    GPIO.output(coil_B_1_pin, w3)
    GPIO.output(coil_B_2_pin, w4)
 
def forward(delay, steps):
    for i in range(steps):
        for j in range(StepCount):
            setStep(Seq[j][0], Seq[j][1], Seq[j][2], Seq[j][3])
            time.sleep(delay)
 
def backwards(delay, steps):
    for i in range(steps):
        for j in reversed(range(StepCount)):
            setStep(Seq[j][0], Seq[j][1], Seq[j][2], Seq[j][3])
            time.sleep(delay)
 
while True:
    delay = raw_input("Zeitverzoegerung (ms)?")
    steps = raw_input("Wie viele Schritte vorwaerts? ")
    forward(int(delay) / 1000.0, int(steps))
    steps = raw_input("Wie viele Schritte rueckwaerts? ")
    backwards(int(delay) / 1000.0, int(steps))

Code: Alles auswählen

#!/bin/env python
# -*- coding: utf-8

import RPi.GPIO as GPIO
import time

COIL_PINS = 24, 25, 8, 7  # pink, orange, blue, yellow

def init():
    GPIO.setmode(GPIO.BCM)
    GPIO.setwarnings(False)
    # nur bei ULN2003 Treiber IC wichtig:
    # enable_pin = 18
    # GPIO.setup(enable_pin, GPIO.OUT)
    # GPIO.output(enable_pin, 1)
    for pin in COIL_PINS:
        GPIO.setup(pin, GPIO.OUT)

SEQ = (
    [1, 0, 0, 0],
    [1, 1, 0, 0],
    [0, 1, 0, 0],
    [0, 1, 1, 0],
    [0, 0, 1, 0],
    [0, 0, 1, 1],
    [0, 0, 0, 1],
    [1, 0, 0, 1],
)

def set_step(values):
    for pin, value in zip(COIL_PINS, values)
        GPIO.output(pin, value)

def walk(delay, steps, reverse=False):
    direction = reversed if reverse else iter
    for i in range(steps):
        for values in direction(SEQ):
            set_step(values)
            time.sleep(delay)

def main():
    init()
    while True:
        delay = .001 * int(raw_input("Zeitverzoegerung (ms)?"))
        steps = int(raw_input("Wie viele Schritte vorwaerts? "))
        walk(delay, steps)
        steps = int(raw_input("Wie viele Schritte rueckwaerts? "))
        walk(delay, steps, reverse=True)

if __name__ == '__main__':
    main()