LotharGehlhaar - Teichbauforum

#----------------------#
# Author: Pfiffikus und Dennis#
#----------------------#
import time
import RPi.GPIO as GPIO
import sys

# Schreibe eingegebene GPIO pins in die Variablen
GPIOTrigger1 = int(18)
GPIOEcho1    = int(17)
GPIOEcho2   = int(27)
GPIOEcho3   = int(22)

#GPIO.setwarnings(False)

#Wieviel Messungen sollen durchgefuehrt werden
Counter = 1000

# function to measure the distance
print 'Start'
while Counter > 1:
  #time.sleep(0.2)

  def MeasureDistance(GPIOTrigger, GPIOEcho):
    time.sleep(0.2)
  # set trigger to high
    GPIO.output(GPIOTrigger, True)

  # set trigger after 10mikrosec to low
    time.sleep(0.00001)
    GPIO.output(GPIOTrigger, False)

      # store initial start time
    StartTime = time.time()
      # Endzeit festlegen
    EndTime = StartTime + 1

      # store start time
    while ((GPIO.input(GPIOEcho) == 0) & (StartTime < EndTime)):
      StartTime = time.time()

      # store stop time - aber vordefinieren
    StopTime = time.time()
    while ((GPIO.input(GPIOEcho) == 1) & (StartTime < EndTime)):
      StopTime = time.time()


      # Wenn keine Antwort vom Sensor empfangen wird, wird 0 mm  ausgegeben
    if StopTime - StartTime < 0.0001:
      StopTime =  StartTime

    # calculate distance
    TimeElapsed = StopTime - StartTime
    Distance = (TimeElapsed * 343000) / 2

    return Distance

    # Set Output to GPIOs
  GPIO.setmode(GPIO.BCM)

      # set up GPIO pins
  GPIO.setup(GPIOTrigger1, GPIO.OUT)
  GPIO.setup(GPIOEcho1, GPIO.IN)
  GPIO.setup(GPIOEcho2, GPIO.IN)
  GPIO.setup(GPIOEcho3, GPIO.IN)

      # set trigger to false
  GPIO.output(GPIOTrigger1, False)
  Millimeter1 = MeasureDistance(GPIOTrigger1, GPIOEcho1)

  GPIO.output(GPIOTrigger1, False)
  Millimeter2 = MeasureDistance(GPIOTrigger1, GPIOEcho2)

  GPIO.output(GPIOTrigger1, False)
  Millimeter3 = MeasureDistance(GPIOTrigger1, GPIOEcho3)

  print("%.0f" % Millimeter1 +", " + "%.0f" % Millimeter2 +", " + "%.0f" % Millimeter3)
#  print("%.0f" % Millimeter2)
#  print("%.0f" % Millimeter3)
  Counter = Counter - 1

GPIO.cleanup()

sudo /var/www/steuerung/quellen/sensoren/echolot.py 18 17
sudo /var/www/steuerung/quellen/sensoren/echolot.py 18 21
sudo /var/www/steuerung/quellen/sensoren/echolot.py 18 22