Added sensor message to template

garage_door_script.py

@@ -23,7 +23,28 @@ correct_login = 0
 # Route for the main page
 @app.route('/')
 def index():
-    return render_template('index.html')
+    logged_in = request.cookies.get('logged_in')
+    if logged_in == "yes":
+        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)
+            message = 'The garage is closed.'
+        else:
+            message = 'The garage is open.'
+    else:
+        return redirect(url_for('login'))
+    return render_template('index.html', message=message)
 
 # Route for the login page
 @app.route('/login', methods=['GET', 'POST'])

templates/index.html

@@ -12,5 +12,6 @@
         <a class="active" href="/logout">Logout</a>
       </div>
     </div>
+    <p>{{ message }}</p>
   </body>
 </html>