Added code for Lab 9

2026-03-31 00:45:08 -04:00 · 2026-03-31 00:45:08 -04:00 · 5f40f4c866
commit 5f40f4c866
parent 4c5757b3cc
24 changed files with 796 additions and 0 deletions
--- a/Lab09/MicroPython/Code/wifi02/WebServer01.py
+++ b/Lab09/MicroPython/Code/wifi02/WebServer01.py
@ -0,0 +1,122 @@
+# 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']
+
+# HTML template for the webpage
+def webpage(random_value, state):
+    html = f"""
+        <!DOCTYPE html>
+        <html>
+        <head>
+            <title>Pico Web Server</title>
+            <meta name="viewport" content="width=device-width, initial-scale=1">
+        </head>
+        <body>
+            <h1>Raspberry Pi Pico Web Server</h1>
+            <h2>Onboard Led Control</h2>
+            <form action="./lighton">
+                <input type="submit" value="Light on" />
+            </form>
+            <br>
+            <form action="./lightoff">
+                <input type="submit" value="Light off" />
+            </form>
+            <p>LED state: {state}</p>
+            <h2>Fetch New Value</h2>
+            <form action="./value">
+                <input type="submit" value="Fetch value" />
+            </form>
+            <p>Fetched value: {random_value}</p>
+        </body>
+        </html>
+        """
+    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')
+