from machine import Pin, PWM
from time import sleep
import dht
import os
CLR = "\x1b[0K"
UP = "\x1B[3A"

pwm0 = PWM(Pin(19))

dht22 = dht.DHT22(Pin(25))

def pulse(frequency, duty, duty_cycle):

  pwm0.freq(frequency)
  pwm0.duty(duty)

  print(UP,"the temperature is {:0.2f}".format(temperature), CLR, "\n", "The frequency is {:2d} with a duty cycle of {:3d}".format(frequency, duty_cycle), CLR, "\n")

  

def LED(temperature):

  if temperature > 15 and temperature < 18:

    frequency = 3
    duty = 102
    duty_cycle = 10
    pulse(frequency, duty, duty_cycle)

  elif temperature > 18 and temperature < 21:

    frequency = 7
    duty = 306
    duty_cycle = 30
    pulse(frequency, duty, duty_cycle)

  elif temperature > 21 and temperature < 24:

    frequency = 4
    duty = 767
    duty_cycle = 75
    pulse(frequency, duty, duty_cycle)
  
  elif temperature > 24:

    frequency = 5
    duty = 200
    duty_cycle = 50
    pulse(frequency, duty, duty_cycle)

while True:

  dht22.measure()
  temperature = dht22.temperature()
  humidity = dht22.humidity()

  LED(temperature)