From e639ce476c771cdf434695e9bda11349ec3c7dd8 Mon Sep 17 00:00:00 2001
From: Rav4s <63246200+Rav4s@users.noreply.github.com>
Date: Wed, 22 Apr 2020 17:07:19 -0500
Subject: [PATCH] Create Python_script_for_garage_door.py

---
 Python_script_for_garage_door.py | 108 +++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 Python_script_for_garage_door.py

diff --git a/Python_script_for_garage_door.py b/Python_script_for_garage_door.py
new file mode 100644
index 0000000..051440c
--- /dev/null
+++ b/Python_script_for_garage_door.py
@@ -0,0 +1,108 @@
+# Python Script To Control Garage Door
+
+# Load libraries
+import RPi.GPIO as GPIO
+import time
+from bottle import route, run, post, request
+
+# Set up the GPIO pins
+GPIO.setwarnings(False)
+GPIO.setmode(GPIO.BOARD)
+PIN_TRIG = 40
+PIN_ECHO = 38
+GPIO.setup(7, GPIO.OUT)
+GPIO.setup(11, GPIO.OUT)
+GPIO.output(7, True)   
+GPIO.output(11, True)
+
+#define variables
+fresh_login = True
+pswd = 'xxxx'
+
+#Define check_login (function that checks if password is correct by comparing it to the correct one)
+def check_login(password):
+    if password == pswd:
+        return True
+    else:
+        return False
+
+#Create the login form (html)
+@route('/login') #http://servername/login
+def login():
+    #Making fresh_login true when new form is created
+    
+    global fresh_login #make fresh_login a global variable
+    fresh_login = True
+    #Create the html form
+    return '''
+        <form action="/login" method="post">
+            Password: <input name="password" type="password" />
+            <input value="Open" type="submit" />
+        </form>
+    '''
+
+#Receive and check login info
+@route('/login', method='POST')
+def do_login():
+    global fresh_login #make fresh_login global from inside function do_login
+    password = request.forms.get('password') #request password from form created in login
+    #Making sure the login is fresh
+    if fresh_login == True:
+        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)
+        if check_login(password): #cycle the gpio to open garage if passwords match
+            GPIO.output(7, False)
+            time.sleep(.8)
+            GPIO.output(7, True)
+            return "<p>Opening Garage Door One.</p>" #confirm that garage is opening
+        else:
+            return "<p>Incorrect Password.</p>" #tell them to go away if password is incorrect
+    else:
+        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
+
+#Create the login form (html) for the sensor page
+@route('/sensor') #http://servername/sensor
+def sensor():
+    #Create the html form
+    return '''
+        <form action="/sensor" method="post">
+            Password: <input name="password" type="password" />
+            <input value="Authorize" type="submit" />
+        </form>
+    '''
+
+#Create the sensor page (html)
+@route('/sensor', method='POST') #http://servername/sensor
+def do_sensor():
+    password = request.forms.get('password') #request password from form created in login
+    if check_login(password): #Continue to the sensor reading if the password is correct       
+        GPIO.setup(PIN_TRIG, GPIO.OUT) #Setup the gpio trigger pin as input
+        GPIO.setup(PIN_ECHO, GPIO.IN) #Setup the gpio echo pin as output
+    
+        time.sleep(2) #Wait for 2 seconds for sensor to settle
+
+        GPIO.output(PIN_TRIG, GPIO.LOW) #Set trigger to low
+
+        GPIO.output(PIN_TRIG, GPIO.HIGH) #Set trigger to high
+
+        time.sleep(0.00001) #Wait for 0.1 milliseconds before setting to low again
+
+        GPIO.output(PIN_TRIG, GPIO.LOW) #Set trigger to low again
+
+        while GPIO.input(PIN_ECHO)==0:
+            pulse_start_time = time.time() #Set the start time of when the waves are emitted by the sensor
+        while GPIO.input(PIN_ECHO)==1:
+            pulse_end_time = time.time() #Record the time the waves traveled back to the sensor
+            pulse_duration = pulse_end_time - pulse_start_time #Calculate how long it took for the round trip of the waves
+            distance = round(pulse_duration * 17150, 2) #Convert the time it took to centimeters and round to 2 decimals
+       
+        if distance >= 80: #Check if the distance is less than 80cm (This will depend on the garage)
+            return '<p>The garage is closed.</p>'
+        else:
+            return '<p>The garage is open.</p>'
+    else:
+        return '<p>Sorry, the password entered was incorrect</p>' #Don't allow access if password isn't correct
+
+#Run the bottle.py server           
+run(host='0.0.0.0', port=1234)
+
+