import dht
import machine
import time

# Replace with your ThingSpeak API key
api_key = "DD55NPNRNJOBBCOZ"

# Setup DHT22 sensor on pin 15 (Wokwi default)
sensor = dht.DHT22(machine.Pin(15))

def read_sensor():
    try:
        sensor.measure()
        temp = sensor.temperature()
        hum = sensor.humidity()
        print("Temperature:", temp, "°C")
        print("Humidity:", hum, "%")
        return temp, hum
    except Exception as e:
        print("Sensor read error:", e)
        return None, None

def simulate_thingspeak_upload(temp, hum):
    url = f"http://api.thingspeak.com/update?api_key={api_key}&field1={temp}&field2={hum}"
    print("---- ThingSpeak Upload Simulation ----")
    print("GET", url)
    print("--------------------------------------")

def main():
    while True:
        temp, hum = read_sensor()
        if temp is not None and hum is not None:
            simulate_thingspeak_upload(temp, hum)
        time.sleep(15)  # ThingSpeak allows 15 sec delay between updates

main()