import network
import urequests
from machine import Pin
from time import sleep

# WiFi credentials
SSID = "pi8b"
PASSWORD = "1234567890"

# ThingSpeak settings
THINGSPEAK_WRITE_API_KEY = "7IPP59WL5IZFOH1E"
THINGSPEAK_URL = "http://api.thingspeak.com/update"

# Digital sound sensor input (on GP15)
sound_sensor = Pin(15, Pin.IN)

def connect_wifi(ssid, pwd):
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print("Connecting to WiFi …")
        wlan.connect(ssid, pwd)
        while not wlan.isconnected():
            sleep(1)
    print("Connected, IP:", wlan.ifconfig())
    return wlan

def read_sound_sensor():
    # Returns 1 if sound detected, else 0
    return sound_sensor.value()

def upload_to_thingspeak(sound_detected):
    # Upload 1 or 0 to ThingSpeak field1
    url = f"{THINGSPEAK_URL}?api_key={THINGSPEAK_WRITE_API_KEY}&field1={sound_detected}"
    try:
        response = urequests.get(url)
        print("ThingSpeak response:", response.text)
        response.close()
    except Exception as e:
        print("Failed to send data:", e)

def main_loop():
    connect_wifi(SSID, PASSWORD)
    while True:
        sound_state = read_sound_sensor()
        print("Sound detected:" if sound_state else "No sound")
        
        upload_to_thingspeak(sound_state)
        
        # ThingSpeak free channel limits updates to every 15 seconds
        sleep(15)

if __name__ == "__main__":
    main_loop()