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108 lines
4.2 KiB
108 lines
4.2 KiB
# Python Script To Control Garage Door
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# Load libraries
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import RPi.GPIO as GPIO
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import time
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from bottle import route, run, post, request
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# Set up the GPIO pins
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GPIO.setwarnings(False)
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GPIO.setmode(GPIO.BOARD)
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PIN_TRIG = 40
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PIN_ECHO = 38
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GPIO.setup(7, GPIO.OUT)
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GPIO.setup(11, GPIO.OUT)
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GPIO.output(7, True)
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GPIO.output(11, True)
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#define variables
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fresh_login = True
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pswd = '0723'
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#Define check_login (function that checks if password is correct by comparing it to the correct one)
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def check_login(password):
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if password == pswd:
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return True
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else:
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return False
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#Create the login form (html)
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@route('/login') #http://servername/login
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def login():
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#Making fresh_login true when new form is created
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global fresh_login #make fresh_login a global variable
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fresh_login = True
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#Create the html form
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return '''
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<form action="/login" method="post">
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Password: <input name="password" type="password" />
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<input value="Open" type="submit" />
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</form>
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'''
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#Receive and check login info
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@route('/login', method='POST')
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def do_login():
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global fresh_login #make fresh_login global from inside function do_login
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password = request.forms.get('password') #request password from form created in login
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#Making sure the login is fresh
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if fresh_login == True:
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fresh_login = False #make fresh login false so page reload doesn't cause garage to re-open (a variable that takes place of a cookie, but clears on webpage closing)
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if check_login(password): #cycle the gpio to open garage if passwords match
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GPIO.output(7, False)
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time.sleep(.8)
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GPIO.output(7, True)
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return "<p>Opening Garage Door One.</p>" #confirm that garage is opening
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else:
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return "<p>Incorrect Password.</p>" #tell them to go away if password is incorrect
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else:
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return "<p>Please restart your browser</p>" #this triggers if fresh_login was false when the function ran, telling you to restart your browser/webpage to clear the fresh_login variable
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#Create the login form (html) for the sensor page
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@route('/sensor') #http://servername/sensor
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def sensor():
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#Create the html form
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return '''
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<form action="/sensor" method="post">
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Password: <input name="password" type="password" />
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<input value="Authorize" type="submit" />
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</form>
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'''
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#Create the sensor page (html)
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@route('/sensor', method='POST') #http://servername/sensor
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def do_sensor():
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password = request.forms.get('password') #request password from form created in login
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if check_login(password): #Continue to the sensor reading if the password is correct
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GPIO.setup(PIN_TRIG, GPIO.OUT) #Setup the gpio trigger pin as input
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GPIO.setup(PIN_ECHO, GPIO.IN) #Setup the gpio echo pin as output
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time.sleep(2) #Wait for 2 seconds for sensor to settle
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GPIO.output(PIN_TRIG, GPIO.LOW) #Set trigger to low
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GPIO.output(PIN_TRIG, GPIO.HIGH) #Set trigger to high
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time.sleep(0.00001) #Wait for 0.1 milliseconds before setting to low again
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GPIO.output(PIN_TRIG, GPIO.LOW) #Set trigger to low again
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while GPIO.input(PIN_ECHO)==0:
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pulse_start_time = time.time() #Set the start time of when the waves are emitted by the sensor
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while GPIO.input(PIN_ECHO)==1:
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pulse_end_time = time.time() #Record the time the waves traveled back to the sensor
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pulse_duration = pulse_end_time - pulse_start_time #Calculate how long it took for the round trip of the waves
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distance = round(pulse_duration * 17150, 2) #Convert the time it took to centimeters and round to 2 decimals
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if distance >= 80: #Check if the distance is less than 80cm (This will depend on the garage)
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return '<p>The garage is closed.</p>'
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else:
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return '<p>The garage is open.</p>'
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else:
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return '<p>Sorry, the password entered was incorrect</p>' #Don't allow access if password isn't correct
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#Run the bottle.py server
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run(host='0.0.0.0', port=1234)
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