import random
import time
from machine import Pin, PWM, ADC


TEMP_THRESHOLD = 30
HUMIDITY_THRESHOLD = 70

BUZZER_PIN = 18
BUZZER_FREQ = 2000
BUZZER_DUTY = 512
buzzer = PWM(Pin(BUZZER_PIN), freq=BUZZER_FREQ, duty=0)

HUMIDITY_PIN = 34
TEMPERATURE_PIN = 35
adc = ADC(Pin(HUMIDITY_PIN))
adc.atten(ADC.ATTN_11DB)


while True:
    
    temperature = random.uniform(20, 35)
    humidity = adc.read() / 4095 * 100

    
    print("Temperature: {:.2f} C, Humidity: {:.2f} %".format(temperature, humidity))


    if temperature > TEMP_THRESHOLD or humidity > HUMIDITY_THRESHOLD:
        print("ALARM! Temperature or Humidity is too high!")
    
        buzzer.duty(BUZZER_DUTY)
        time.sleep(0.5)
        buzzer.duty(0)
        time.sleep(0.5)
    time.sleep(1)