Inital Commit

main.py

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+# These two modules allow us to run a web server.
+from flask import Flask, render_template
+from flask_socketio import SocketIO
+# This module lets us pick random numbers, you can remove it later.
+import random
+
+# Here, we create the neccesary base app. You don't need to worry about this.
+app = Flask(__name__)
+socketio = SocketIO(app)
+
+# When someone requests the root page from our web server, we return 'index.html'.
+@app.route('/')
+def index():
+    return render_template('index.html')
+
+# This function runs in the background to transmit data to connected clients.
+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)
+        # 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.
+        socketio.emit(
+            'update_data',
+            {
+                'randomNumber': random.randint(1, 100),
+                # you can add more here! for instance, something along the lines of:
+                # 'mySensor': mysensor.get_sensor_data(),
+            }
+        )
+        # To add a your first new sensor, try giving https://docs.aerospacejam.org/getting-started/first-sensor a read!
+
+# This function runs when someone connects to the server - and all we do is start the background thread to update the data.
+@socketio.on('connect')
+def handle_connect():
+    print('Client connected')
+    socketio.start_background_task(target=background_thread)
+
+# 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)
+
+if __name__ == '__main__':
+    main()