77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
import time
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import RPi.GPIO as GPIO
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import Adafruit_DHT
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GPIO.setmode(GPIO.BOARD)
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GPIO.setwarnings(False)
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class SystemeThermostat:
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def __init__(self):
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self.capteur = Adafruit_DHT.DHT11
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self.pinDht = 22
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self.boutonPlus = 16
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self.boutonMoins = 18
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# display 4 digits
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# à brancher proprement quand le module exact sera fixé
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self.pinDisplayClk = 7
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self.pinDisplayDio = 11
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self.temperatureCible = 18
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self.temperatureReelle = None
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self.derniereLectureBouton = 0
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self.delaiLectureBouton = 0.25
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GPIO.setup(self.boutonPlus, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(self.boutonMoins, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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def lireTemperature(self):
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humidite, temperature = Adafruit_DHT.read_retry(self.capteur, self.pinDht)
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if temperature is None:
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print("Thermostat : lecture DHT11 impossible")
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return None
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return temperature
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def lireBoutons(self):
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maintenant = time.time()
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if maintenant - self.derniereLectureBouton < self.delaiLectureBouton:
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return
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if GPIO.input(self.boutonPlus):
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self.temperatureCible += 1
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self.derniereLectureBouton = maintenant
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print("Consigne :", self.temperatureCible, "°C")
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elif GPIO.input(self.boutonMoins):
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self.temperatureCible -= 1
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self.derniereLectureBouton = maintenant
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print("Consigne :", self.temperatureCible, "°C")
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def afficherTemperatures(self):
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# pour l'instant on affiche dans la console
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# le vrai code du display ira ici
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if self.temperatureReelle is None:
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print("Temp réelle : -- | cible :", self.temperatureCible)
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else:
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print("Temp réelle :", str(self.temperatureReelle) + "°C", "| cible :", str(self.temperatureCible) + "°C")
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def mettreAJour(self):
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self.lireBoutons()
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self.temperatureReelle = self.lireTemperature()
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self.afficherTemperatures()
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if self.temperatureReelle is None:
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return True
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return False
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def cleanup(self):
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# rien à éteindre ici, incroyable mais vrai
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pass
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