streaming-kamera/src/schrittmotor.py
2021-03-04 13:56:10 +01:00

102 lines
3.2 KiB
Python

from src.einstellungen import *
import RPi.GPIO as GPIO
import time
import threading
import math
GPIO.setmode(GPIO.BCM)
#GPIO.setwarnings(False)
class motor():
def __init__(self, name, sp1, sp2, sp3, sp4, t1, t2, te, es, halten, schritte):
self.name = name
self.sp1 = sp1
self.sp2 = sp2
self.sp3 = sp3
self.sp4 = sp4
self.t1 = t1
self.t2 = t2
self.te = te
self.endschalter = es
self.halten = halten
self.schritte_max = schritte
self.pos = 0
self.freq = freq
self.freq_halten = freq_halten
self.cyc_halten = cyc_halten
GPIO.setup(self.sp1, GPIO.OUT)
GPIO.setup(self.sp2, GPIO.OUT)
GPIO.setup(self.sp3, GPIO.OUT)
GPIO.setup(self.sp4, GPIO.OUT)
self.pwm1 = GPIO.PWM(self.sp1, self.freq)
self.pwm1.start(0)
self.pwm2 = GPIO.PWM(self.sp2, self.freq)
self.pwm2.start(0)
self.pwm3 = GPIO.PWM(self.sp3, self.freq)
self.pwm3.start(0)
if self.halten == 1:
self.pwm4 = GPIO.PWM(self.sp4, self.freq)
self.pwm4.start(cyc_halten)
else:
self.pwm4 = GPIO.PWM(self.sp4, self.freq)
self.pwm4.start(0)
print(str(self.sp4))
print(str(self.pwm4))
def vorwaerts(self, schritte):
ges_schritte = schritte * 8
#print(str(ges_schritte))
print(str(self.halten))
if self.halten == 1:
self.pwm4.ChangeFrequency(self.freq)
self.pwm4.stop()
print(str(self.pwm4))
for i in range(int(schritte)):
if self.pos >= self.schritte_max:
break
else:
self.pos += 1
temp_pos = i * 8
einzelschritt(self.pwm1, 1, ges_schritte, temp_pos, self.t1, self.t2)
einzelschritt(self.pwm4, 0, ges_schritte, temp_pos + 1, self.t1, self.t2)
einzelschritt(self.pwm2, 1, ges_schritte, temp_pos + 2, self.t1, self.t2)
einzelschritt(self.pwm1, 0, ges_schritte, temp_pos + 3, self.t1, self.t2)
einzelschritt(self.pwm3, 1, ges_schritte, temp_pos + 4, self.t1, self.t2)
einzelschritt(self.pwm2, 0, ges_schritte, temp_pos + 5, self.t1, self.t2)
einzelschritt(self.pwm4, 1, ges_schritte, temp_pos + 6, self.t1, self.t2)
einzelschritt(self.pwm3, 0, ges_schritte, temp_pos + 7, self.t1, self.t2)
if self.halten == 1:
self.pwm4.ChangeFrequency(self.freq_halten)
self.pwm4.ChangeDutyCycle(self.cyc_halten)
else:
self.pwm4.ChangeDutyCycle(0)
def einzelschritt(spule, status, ges_schritte, schritt, t1, t2):
w = (schritt * 100 / (ges_schritte - 1)) * 1.8
s = round(math.sin(math.radians(w)), 2)
t = t2 - (s * (t2 - t1))
#print(str(t))
if status == 1:
for i in range(0, 91, 5):
dc = round(math.sin(math.radians(i)) * 100, 0)
spule.ChangeDutyCycle(dc)
#print(str(dc))
time.sleep(t)
else:
for i in range(0, 91, 5):
dc = round(math.cos(math.radians(i)) * 100, 0)
spule.ChangeDutyCycle(dc)
time.sleep(t)