Added basic lidar functionality

main.py

@@ -1,6 +1,8 @@
 # These two modules allow us to run a web server.
 from flask import Flask, render_template
 from flask_socketio import SocketIO
+from tfluna import TFLuna
+
 # This module lets us pick random numbers, you can remove it later.
 import random
 
@@ -8,6 +10,14 @@ import random
 app = Flask(__name__)
 socketio = SocketIO(app)
 
+tfluna = TFLuna()
+tfluna.open()
+tfluna.set_samp_rate(10)
+def printLidar():
+    distance, strength, temperature = tfluna.read()
+    lidarValues = {distance, strength, temperature}
+    return str(lidarValues)
+
 # When someone requests the root page from our web server, we return 'index.html'.
 @app.route('/')
 def index():
@@ -17,7 +27,7 @@ def index():
 def background_thread():
     while True:
         # We sleep here for a single second, but this can be increased or decreased depending on how quickly you want data to be pushed to clients.
-        socketio.sleep(1)
+        socketio.sleep(0.1)
         # Then, we emit an event called "update_data" - but this can actually be whatever we want - with the data being a dictionary
         # where 'randomNumber' is set to a random number we choose here. You should replace the data being sent back with your sensor data
         # that you fetch from things connected to your Pi.
@@ -27,6 +37,7 @@ def background_thread():
                 'randomNumber': random.randint(1, 100),
                 # you can add more here! for instance, something along the lines of:
                 # 'mySensor': mysensor.get_sensor_data(),
+                'lidar': printLidar()
             }
         )
         # To add a your first new sensor, try giving https://docs.aerospacejam.org/getting-started/first-sensor a read!
@@ -40,7 +51,7 @@ def handle_connect():
 # This function is called
 def main():
     # These specific arguments are required to make sure the webserver is hosted in a consistent spot, so don't change them unless you know what you're doing.
-    socketio.run(app, host='0.0.0.0', port=80, allow_unsafe_werkzeug=True)
+    socketio.run(app, host='0.0.0.0', port=8085, allow_unsafe_werkzeug=True)
 
 if __name__ == '__main__':
     main()

templates/index.html

@@ -10,6 +10,7 @@
     <h1>Aerospace Jam Example</h1>
     <!-- Notice how the span that contains the placeholder value has an ID. We reference this ID later in the script, and it lets us pick this element in specific. -->
     <p><b>Random number chosen by the Pi: </b> <span id="randomNumber">Loading...</span></p>
+    <p><b>Lidar Values: </b> <span id="lidar">Loading...</span></p>
     <script>
         // This function wrapper (addEventListener) makes the inner contents run only when the DOM (Document Object Model) content is loaded.
         // In simpler terms, this runs once the page has finished loading.
@@ -20,8 +21,10 @@
             socket.on('update_data', function(msg) {
                 // Now, we get the span that we defined before by its ID...
                 var randomNumberSpan = document.getElementById('randomNumber');
-                // And we set its content to the random number we just got from the server.
+                var lidarDistanceSpan = document.getElementById('lidar');
+				// And we set its content to the random number we just got from the server.
                 randomNumberSpan.textContent = msg.randomNumber;
+		lidarDistanceSpan.textContent = msg.lidar;
                 // For new sensors, we can really easily repeat this! For instance, if you added a piece to the data on the server side called "mySensor", as in the other example, you could do:
                 // var mySensorSpan = document.getElementById('mySensor');
                 // mySensorSpan.textContent = msg.mySensor;
@@ -29,4 +32,4 @@
         });
     </script>
 </body>
-</html>
+</html>