print("Class about Temperature Sensor")

from machine import Pin
from dht import DHT22
import time


# Example
# Variable declaration
# sensor = DHT22(Pin(13))

# while True:
#     # Collecting data
#     sensor.measure()
#     time.sleep(3)

#     # Show data
#     print("The actual temperature is: ", sensor.temperature())
#     print("The actual humidity is: ", sensor.humidity())


# Exercise 1
# print("Control Temperature and Humidity Update")
# sensor = DHT22(Pin(13))
# previous_temperature = 0
# previous_humidity = 0

# while True:
    # # Collecting data
    # sensor.measure()
    # time.sleep(3)

    # current_temperature = sensor.temperature()
    # current_humidity = sensor.humidity()

    # if ((previous_temperature != current_temperature) or (previous_humidity != current_humidity)):
    #     # Show data
    #     print("The current temperature is: ", current_temperature)
    #     print("The current humidity is: ", current_humidity)
    #     previous_temperature = current_temperature
    #     previous_humidity = current_humidity
    # else:
    #     print("No changes")


# Exercise 2
print("Temperature and Humidity Alarm")
sensor = DHT22(Pin(13))
led_temperature = Pin(23, Pin.OUT)
led_humidity = Pin(16, Pin.OUT)

while True:
    # Collecting data
    sensor.measure()
    time.sleep(3)

    temperature = sensor.temperature()
    humidity = sensor.humidity()

    # Alarm
    if temperature > 35:
        led_temperature.on()
    else:
        led_temperature.off()
    
    if humidity < 10:
        led_humidity.on()
    else:
        led_humidity.off()