import network
import socket
import time
import dht
from machine import Pin

# --- Configuration ---
WIFI_SSID = "Your_WiFi_Name"
WIFI_PASS = "Your_WiFi_Password"
DHT_PIN = 15  # GPIO pin connected to DHT22 data pin

# Initialize sensor
sensor = dht.DHT22(Pin(DHT_PIN))

# --- Connect to Wi-Fi ---
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(WIFI_SSID, WIFI_PASS)

print("Connecting to WiFi...")
while not wlan.isconnected():
    time.sleep(1)

    print(f"Connected! IP Address: {wlan.ifconfig()[0]}")

    # --- Setup TCP Server ---
    # Create socket (IPv4, TCP)
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.bind(('', 80)) # Bind to port 80
    s.listen(5)

    print("TCP Server is listening on port 80...")

    while True:
        try:
                # Accept connection from client
                        client, addr = s.accept()
                                print(f"Client connected from {addr}")
                                        
                                                # Receive the request (we can ignore content for a simple trigger)
                                                        request = client.recv(1024)
                                                                
                                                                        # Read DHT22 Data
                                                                                try:
                                                                                            sensor.measure()
                                                                                                        humidity = sensor.humidity()
                                                                                                                    response = f"Humidity: {humidity:.1f}%\n"
                                                                                                                            except Exception as e:
                                                                                                                                        response = "Error reading sensor\n"

                                                                                                                                                # Send response and close
                                                                                                                                                        client.send(response)
                                                                                                                                                                client.close()
                                                                                                                                                                        
                                                                                                                                                                            except Exception as e:
                                                                                                                                                                                    print("Error:", e)