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67 lines
2.4 KiB
67 lines
2.4 KiB
# Python Script To Control Garage Door
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# Load libraries
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import RPi.GPIO as GPIO #Import RPi GPIO library
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import time #Import time
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from flask import Flask, make_response, request, render_template, redirect, url_for #Import flask web server and additional components
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app = Flask(__name__)
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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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#Variables
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correct_login = 0
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# Route for the main page
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@app.route('/')
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def index():
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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 'The garage is closed.'
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else:
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return 'The garage is open.'
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# Route for the login page
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@app.route('/login', methods=['GET', 'POST'])
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def login():
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error = None
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if request.method == 'POST':
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if request.form['username'] != 'admin' or request.form['password'] != 'admin':
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error = 'Invalid Credentials. Please try again.'
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else:
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global correct_login
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correct_login = 1
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return redirect(url_for('cookie'))
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return render_template('login.html', error=error)
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# Route for the login page
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@app.route('/set-cookie')
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def cookie():
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if correct_login == 1:
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resp = make_response()
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resp.set_cookie('logged_in', 'yes')
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return resp, redirect(url_for('index'))
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else:
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return 'Not logged in.'
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if __name__ == '__main__':
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app.run(host='0.0.0.0') #Run the webserver
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