Joy-it Combi Sensor, Руководство пользователя

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Published: 27.08.2018 Copyright by Joy-IT 7
Combi Sensor
#!/usr/bin/python
# coding=utf - 8
# Required modules are imported and set up
import RPi. GPIO as GPIO
import Adafruit_DHT
import time
# The pause of two seconds between measurements is set here
sleeptime = 2
# Sensor should be set to Adafruit_DHT.DHT11,
# Adafruit_DHT.DHT22, or Adafruit_DHT.AM2302.
DHTSensor = Adafruit_DHT. DHT11
# The pin to which the sensor module is connected can be declared here
GPIO_Pin = 23
print ( 'KY - 015 Sensortest - Temperatur und Luftfeuchtigkeit' )
try :
while ( 1 ) :
# Measurement is started and the result is written to the corresponding vari-
ables
Luftfeuchte , Temperatur = Adafruit_DHT. read_retry( DHTSensor , GPIO_Pin )
print ( " ----------------------------------------------------------------- " )
if Luftfeuchte is not None and Temperatur is not None :
# Das gemessene Ergebnis wird in der Konsole ausgegeben
print ( 'Temperatur = {0:0.1f}°C | rel. Luftfeuchtigkeit =
{1:0.1f}%' . format( Temperatur , Luftfeuchte ))
# Because the Raspberry Pi is disadvantaged for real - time applications due to
the Linux operating system,
# communication may fail due to timing problems.
# In this case an error message is displayed - a result should be available
at the next attempt
else :
print ( 'Fehler beim Auslesen - Bitte warten auf nächsten Versuch!' )
print ( " ----------------------------------------------------------------- " )
print ( "" )
time . sleep( sleeptime )
# Cleanup after the program is finished
except KeyboardInterrupt :
GPIO. cleanup()