2 scripts toegevoegd die worden niet gebruikt
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42
not_used/afstandsensor.py
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42
not_used/afstandsensor.py
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import RPi.GPIO as GPIO
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import time
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GPIO.setmode( GPIO.BCM )
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GPIO.setwarnings( 0 )
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print( "sr04 print" )
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sr04_trig = 10
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sr04_echo = 11
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GPIO.setup( sr04_trig, GPIO.OUT )
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GPIO.setup( sr04_echo, GPIO.IN, pull_up_down=GPIO.PUD_DOWN )
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def sr04( trig_pin, echo_pin ):
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"""
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Return the distance in cm as measured by an SR04
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that is connected to the trig_pin and the echo_pin.
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These pins must have been configured as output and input.s
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"""
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GPIO.output(trig_pin, False) # altijd met false starten
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time.sleep(0.5)
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GPIO.output(trig_pin, True)
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time.sleep(0.00001) # pulse trigger
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GPIO.output(trig_pin, False)
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while GPIO.input(echo_pin) == False:
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start_time = time.time() # tijd opslaan wanneer de echo false is
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while GPIO.input(echo_pin) == True:
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end_time = time.time() # tijd opslaan wanneer de echo true is
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total_time = end_time - start_time # totaal aantal afstand in seconden
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return (round(total_time*34300/2, 2), total_time) #tuple terug geven met afstand in cm en totaal aantal seconden
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# sensor is niet helemaal naukeurig(~1-2cm variatie), kan ook aan de rpi timing liggen
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try:
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while True:
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print( sr04( sr04_trig, sr04_echo ))
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time.sleep( 0.5 )
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except KeyboardInterrupt:
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GPIO.cleanup()
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49
not_used/schuifregister.py
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49
not_used/schuifregister.py
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import RPi.GPIO as GPIO
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import time
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings( 0 )
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print( "hc595 walk" )
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shift_clock_pin = 17 # let op de pinnen zijn aangepast!
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latch_clock_pin = 27
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data_pin = 22
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GPIO.setup( shift_clock_pin, GPIO.OUT )
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GPIO.setup( latch_clock_pin, GPIO.OUT )
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GPIO.setup( data_pin, GPIO.OUT )
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def hc595( shift_clock_pin, latch_clock_pin, data_pin, value, delay ):
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for k in range(0, 8): # 8 keer loopen
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if value % 2 == 1: # als waarde oneven is
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GPIO.output(data_pin, GPIO.HIGH) # data pin hoog zetten
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else: # waarde is even
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GPIO.output(data_pin, GPIO.LOW) # data pin laag houden
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value = value // 2 # waarde halveren
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GPIO.output(shift_clock_pin, GPIO.HIGH) # klok hoog, om de waarde pin te laten aflezen
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GPIO.output(shift_clock_pin, GPIO.LOW) # klok laag, default positie
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GPIO.output(latch_clock_pin, GPIO.HIGH) # geen idee, waarschijnlijk om de waardes op te laten slaan in de chip
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GPIO.output(latch_clock_pin, GPIO.LOW) # default positie
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time.sleep(delay)
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delay = 0.1
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try:
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while True:
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 1, delay ) # waarde is 1 dus de eerste led hoort te branden de rest niet
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 2, delay ) # waarde is 2 dus de tweede led en niet de 1e hoort te branden
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 4, delay ) # waarde is 4 dus de 3e led hoort te branden de rest niet
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 8, delay ) # enzovoort
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 16, delay )
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 32, delay )
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 64, delay )
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hc595( shift_clock_pin, latch_clock_pin, data_pin, 128, delay ) # de 8e led en niet meer
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except KeyboardInterrupt:
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GPIO.cleanup()
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