Added code for Lab 9

Lab09/MicroPython/Code/wifi03/WebServer03.py

@@ -0,0 +1,106 @@
+# Complete project details at https://RandomNerdTutorials.com/raspberry-pi-pico-web-server-micropython/
+
+# Import necessary modules
+import network
+import socket
+import time
+import random
+from machine import Pin
+from secrets import secrets
+
+# Create an LED object on pin 'LED'
+led = Pin('LED', Pin.OUT)
+
+# Wi-Fi credentials
+ssid = secrets['ssid']
+password = secrets['password']
+
+indexFilename = "index03.html"
+
+# HTML template for the webpage
+def webpage(random_value, state):
+    try:
+        with open(indexFilename, 'r') as f:
+            html = f.read()
+    except FileNotFoundError:
+        print("The file was not found.")
+    except IOError:
+        print("An error was encountered reading the file.")
+        
+    return str(html)
+
+# Connect to WLAN
+wlan = network.WLAN(network.STA_IF)
+wlan.active(True)
+wlan.connect(ssid, password)
+
+# Wait for Wi-Fi connection
+connection_timeout = 10
+while connection_timeout > 0:
+    if wlan.status() >= 3:
+        break
+    connection_timeout -= 1
+    print('Waiting for Wi-Fi connection...')
+    time.sleep(1)
+
+# Check if connection is successful
+if wlan.status() != 3:
+    raise RuntimeError('Failed to establish a network connection')
+else:
+    print('Connection successful!')
+    network_info = wlan.ifconfig()
+    print('IP address:', network_info[0])
+
+# Set up socket and start listening
+addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1]
+s = socket.socket()
+s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+s.bind(addr)
+s.listen()
+
+print('Listening on', addr)
+
+# Initialize variables
+state = "OFF"
+random_value = 0
+
+# Main loop to listen for connections
+while True:
+    try:
+        conn, addr = s.accept()
+        print('Got a connection from', addr)
+        
+        # Receive and parse the request
+        request = conn.recv(1024)
+        request = str(request)
+        print('Request content = %s' % request)
+
+        try:
+            request = request.split()[1]
+            print('Request:', request)
+        except IndexError:
+            pass
+        
+        # Process the request and update variables
+        if request == '/lighton?':
+            print("LED on")
+            led.value(1)
+            state = "ON"
+        elif request == '/lightoff?':
+            led.value(0)
+            state = 'OFF'
+        elif request == '/value?':
+            random_value = random.randint(0, 20)
+
+        # Generate HTML response
+        response = webpage(random_value, state)  
+
+        # Send the HTTP response and close the connection
+        conn.send('HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n')
+        conn.send(response)
+        conn.close()
+
+    except OSError as e:
+        conn.close()
+        print('Connection closed')
+