fanbytemperature.sh

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Author: Edoardo Paolo Scalafiotti <edoardo849@gmail.com>
# Modificado por: CpA - Raspito's Family

import os
from time import sleep
import signal
import sys
import RPi.GPIO as GPIO

pin = 18  # The pin ID, edit here to change it
maxTMP = 60  # Temperatura máxima donde arrancará el ventilador
freshTMP = 45  # Temperatura de rebote, donde se apagará el ventilador


def setup():
    GPIO.setmode(GPIO.BCM)
    GPIO.setup(pin, GPIO.OUT)
    GPIO.setwarnings(False)
    return ()


def getCPUtemperature():
    res = os.popen('vcgencmd measure_temp').readline()
    temp = (res.replace("temp=", "").replace("'C\n", ""))
    # print(“temp is {0}”.format(temp)) #Uncomment here for testing
    return temp


def fanON():
    setPin(True)
    return ()


def fanOFF():
    setPin(False)
    return ()


def getTEMP(switch):
    CPU_temp = float(getCPUtemperature())
    # La temperatura alcanza MaxTemp
    if CPU_temp > maxTMP and not switch:
        fanON()
        return True
    # La temperatura es menor de MaxTMP, y menor de feshTMP, pero está encendido
    elif switch and CPU_temp < freshTMP:
        fanOFF()
        return False
    # Si el ventilador está encendido
    elif switch:
        return True
    else:
        return False


def setPin(mode):  # A little redundant function but useful if you want to add logging
    GPIO.output(pin, mode)
    return ()


try:
    setup()
    ventilador_on = False
    while True:
        ventilador_on = getTEMP(ventilador_on)
        sleep(5)  # Read the temperature every 5 sec, increase or decrease this limit if you want
except KeyboardInterrupt:  # trap a CTRL+C keyboard interrupt
    GPIO.cleanup()  # resets all GPIO ports used by this program