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Code: Alles auswählen

import Adafruit_CharLCD as LCD
import Adafruit_DHT
import subprocess
from datetime import datetime
import time

#LCD-Display
lcd = LCD.Adafruit_CharLCDPlate(0x27)

#LCD
LCD_WIDTH = 20
LCD_LINES = 4

#Zeilen 1 & 3
line1_text = "-- xxxxxXXXXXX --"
line3_text = "..Temp_IN---Temp_OUT.."

#Ermittlung der Raspberry Pi-Temperatur
def get_raspberry_pi_temperature():
    temperature = subprocess.check_output(['vcgencmd', 'measure_temp']).decode('utf-8')
    return temperature.split('=')[1]

#DHT22-Temperatur
def get_dht22_temperature(pin):
    humidity, temperature = Adafruit_DHT.read_retry(Adafruit_DHT.DHT22, pin)
    if temperature is not None and temperature >0 and temperature < 100:
        return f"{temperature:.1f}°C"
    else:
        return "N/A"

try:
    while True:
        #Aktuelles Datum und Uhrzeit
        current_datetime = datetime.now().strftime("%d.%b.%y")
        
        #Raspberry Pi-Temperatur
        raspberry_pi_temp = get_raspberry_pi_temperature()
        
        #DHT22-Temperaturen
        dht22_temp_pin22 = get_dht22_temperature(22)
        dht22_temp_pin27 = get_dht22_temperature(27)
        time.sleep(2)
		
        #LCD Anzeigen
        lcd.clear()
        lcd.message(line1_text.center(LCD_WIDTH) + "\n")
        lcd.message(f"{current_datetime}".ljust(LCD_WIDTH - len(raspberry_pi_temp)) + f"{raspberry_pi_temp}\n")
        lcd.message(line3_text.center(LCD_WIDTH) + "\n")
        lcd.message(f"Temp_IN: {dht22_temp_pin22} Temp_OUT: {dht22_temp_pin27}".ljust(LCD_WIDTH) + "\n")
        
        time.sleep(3)  # Aktualisieren alle 5 Sekunden
        
except KeyboardInterrupt:
    pass

finally:
    lcd.clear()

Code: Alles auswählen

    while True:
        #Aktuelles Datum und Uhrzeit
        current_datetime = datetime.now()
        
        #Raspberry Pi-Temperatur
        raspberry_pi_temp = get_raspberry_pi_temperature()
        
        #DHT22-Temperaturen
        dht22_temp_pin22 = get_dht22_temperature(22)
        dht22_temp_pin27 = get_dht22_temperature(27)
		
        #LCD Anzeigen
        lcd.clear()
        lcd.message(
            f"{line1_text:^{LCD_WIDTH}s}\n"
            f"{current_datetime:%d. %b %Y}{raspberry_pi_temp:>{LCD_WIDTH - 12}s}\n"
            f"{line3_text:^{LCD_WIDTH}s}\n"
            f"Temp_IN: {dht22_temp_pin22} Temp_OUT: {dht22_temp_pin27}"
        )
        time.sleep(-(time.time()%-5))  # Aktualisieren alle 5 Sekunden