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- import time
- import Adafruit_BBIO.GPIO as GPIO
- import Adafruit_BBIO.PWM as PWM
- class Keypad():
- def __init__(self):
- # CONSTANTS
- self.KEYPAD = [
- ["1","2","3"],
- ["4","5","6"],
- ["7","8","9"],
- ["*","0","#"]
- ]
- self.ROW = ["P8_8", "P8_10", "P8_12", "P8_14"]
- self.COLUMN = ["P8_16", "P8_17", "P8_18"]
- self.PASS = "1234"
-
- def getKey(self):
- # Set all columns as output low
- for i in range(len(self.COLUMN)):
- GPIO.setup(self.COLUMN[i], GPIO.OUT)
- GPIO.output(self.COLUMN[i], GPIO.LOW)
-
- # Set all rows as input
- for i in range(len(self.ROW)):
- GPIO.setup(self.ROW[i], GPIO.IN, pull_up_down=GPIO.PUD_UP)
-
- # Scan rows for pushed key/button
- # A valid key press should set "rowVal" between 0 and 3.
- rowVal = -1
- for i in range(len(self.ROW)):
- tmpRead = GPIO.input(self.ROW[i])
- if tmpRead == 0:
- rowVal = i
-
- if rowVal <0 or rowVal >3:
- self.reset()
- return
-
- # Convert columns to input
- for j in range(len(self.COLUMN)):
- GPIO.setup(self.COLUMN[j], GPIO.IN, pull_up_down=GPIO.PUD_UP)
-
- # Switch the i-th row found from scan to output
- GPIO.setup(self.ROW[rowVal], GPIO.OUT)
- GPIO.output(self.ROW[rowVal], GPIO.LOW)
-
- # Scan columns for still-pushed key/button
- # A valid key press should set "colVal" between 0 and 2.
- colVal = -1
- for j in range(len(self.COLUMN)):
- tmpRead = GPIO.input(self.COLUMN[j])
- if tmpRead == 0:
- colVal=j
-
- if colVal <0 or colVal >2:
- self.reset()
- return
-
- # Return the value of the key pressed
- self.reset()
- return self.KEYPAD[rowVal][colVal]
-
- def reset(self):
- # Reinitialize all rows and columns
- for i in range(len(self.ROW)):
- GPIO.setup(self.ROW[i], GPIO.IN, pull_up_down=GPIO.PUD_UP)
- for j in range(len(self.COLUMN)):
- GPIO.setup(self.COLUMN[j], GPIO.IN, pull_up_down=GPIO.PUD_UP)
-
- def verify_pass(self, pass_entered):
- return pass_entered == self.PASS
-
- class IR:
- _name = ""
- _pin = ""
- _mode = GPIO.IN
- _rot = None
- _laut = None
- _keypad = None
- def __init__(self, name, pin, rot, laut, keypad):
- self._name = name
- self._pin = pin
- self._rot = rot
- self._laut = laut
- self._keypad = keypad
- GPIO.setup(self._pin, self._mode)
- GPIO.add_event_detect(self._pin, GPIO.RISING, callback=self.cb_ir)
-
- def __del__(self):
- print("IR {} deleted.".format(self._name))
- GPIO.remove_event_detect(self._pin)
- def cb_ir(self, pin):
- print("cb_ir called. enter password to cancel alarm")
- pass_entered = ""
- digit = None
- for i in range(self._laut._duration * self._rot._blink_freq):
- self._laut.start()
- self._rot.start()
- time.sleep(1/self._rot._blink_freq)
- self._rot.stop()
- self._laut.stop()
- digit = self._keypad.getKey()
- if digit != None:
- pass_entered = pass_entered + digit
- print("{} digit(s) alreadt entered".format(len(pass_entered)))
- digit = None
- if len(pass_entered) == 4:
- if self._keypad.verify_pass(pass_entered):
- print("alarm cancelled")
- self._rot.stop()
- self._laut.stop()
- return
- else:
- print("wrong password")
- pass_entered = ""
-
- class PIR:
- _name = ""
- _pin = ""
- _mode = GPIO.IN
- _rot = None
- _laut = None
- def __init__(self, name, pin, rot, laut):
- self._name = name
- self._pin = pin
- self._rot = rot
- self._laut = laut
- GPIO.setup(self._pin, self._mode)
- GPIO.add_event_detect(self._pin, GPIO.RISING, callback=self.cb_pir)
-
- def __del__(self):
- print("PIR {} deleted.".format(self._name))
- GPIO.remove_event_detect(self._pin)
- def cb_pir(self, pin):
- print("cb_pir called")
- for i in range(self._laut._duration * self._rot._blink_freq):
- self._laut.start()
- self._rot.start()
- time.sleep(1/self._rot._blink_freq)
- self._rot.stop()
- self._laut.stop()
-
- class MAG:
- _name = ""
- _pin = ""
- _mode = GPIO.IN
- _window_closed = True
- _rot = None
- _laut = None
- def __init__(self, name, pin, rot, laut):
- self._name = name
- self._pin = pin
- self._rot = rot
- self._laut = laut
- GPIO.setup(self._pin, self._mode)
- GPIO.add_event_detect(self._pin, GPIO.BOTH, callback=self.cb_mag)
-
- def __del__(self):
- print("MAG {} deleted.".format(self._name))
- GPIO.remove_event_detect(self._pin)
- def cb_mag(self, pin):
- if self._window_closed:
- print("Fenster geoeffnet...")
- self._window_closed = False
- for i in range(self._laut._duration * self._rot._blink_freq):
- self._laut.start()
- self._rot.start()
- time.sleep(1/self._rot._blink_freq)
- self._rot.stop()
- self._laut.stop()
- else:
- print("Fenster zu...")
- self._window_closed = True
- class ROT:
- _name = ""
- _pin = ""
- _mode = GPIO.OUT
- _blink_freq = 2
- def __init__(self, name, pin, blink_freq=2):
- self._name = name
- self._pin = pin
- self._blink_freq = blink_freq
- GPIO.setup(self._pin, self._mode)
-
- def __del__(self):
- print("ROT {} deleted.".format(self._name))
- def start(self):
- GPIO.output(self._pin, GPIO.HIGH)
-
- def stop(self):
- GPIO.output(self._pin, GPIO.LOW)
- class LAUT:
- _name = ""
- _pin = ""
- _mode = GPIO.OUT
- _duration = 60 # in second
- _pwm_perc = 50 # in percentage
- _pwm_freq = 10000 # in hz
- def __init__(self, name, pin, duration=60, pwm_perc=50, pwm_freq=10000):
- self._name = name
- self._pin = pin
- self._duration = duration
- self._pwm_perc = pwm_perc
- self._pwn_freq = pwm_freq
- GPIO.setup(self._pin, self._mode)
-
- def __del__(self):
- print("PWM {} deleted.".format(self._name))
- def start(self):
- PWM.start(self._pin, self._pwm_perc, self._pwm_freq)
-
- def stop(self):
- PWM.stop(self._pin)
- if __name__ == "__main__":
- try:
- print("Program start. Initializing with alarm config...")
- keypad = Keypad()
- rot = ROT("outPinROT", "P9_27")
- laut = LAUT("myPWMLAUT", "P8_13", duration=4)
- ir = IR("inPinIR", "P9_12", rot, laut, keypad)
- pir = PIR("inPinPIR", "P9_41", rot, laut)
- mag = MAG("inPinMAG", "P8_7", rot, laut)
- print("Initialization succeeded. Start in 2 seconds.")
- time.sleep(2)
- while True:
- # print("...")
- time.sleep(2)
- except Exception as e:
- print("Exception captured. Clean up and quit...")
- GPIO.cleanup()
- PWM.cleanup()
- print(e)
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