import machine
import dht
import time

# 初始化 DHT22 感測器
dht_sensor = dht.DHT22(machine.Pin(14))  # 請根據實際連接的 GPIO 腳位修改

# 初始化蜂鳴器的 GPIO 腳位
buzzer_pin = machine.Pin(25, machine.Pin.OUT)  # 請根據實際連接的 GPIO 腳位修改

def read_temperature_humidity():
    dht_sensor.measure()
    temperature = dht_sensor.temperature()
    humidity = dht_sensor.humidity()
    return temperature, humidity

def activate_alarm():
    print("Alert: Temperature or humidity is too high!")
    # 觸發蜂鳴器
    buzzer_pin.on()
    time.sleep(5)  # 讓警報持續 5 秒
    # 關閉蜂鳴器
    buzzer_pin.off()

def main():
    try:
        while True:
            temperature, humidity = read_temperature_humidity()
            
            print("Temperature:", temperature, "°C")
            print("Humidity:", humidity, "%")
            
            if temperature > 30 or humidity > 90:
                activate_alarm()
            
            time.sleep(60)  # 每分鐘檢查一次溫度和濕度

    except KeyboardInterrupt:
        print("Program terminated.")

if __name__ == "__main__":
    main()