New way of reading out MH_Z19 sensor. #247

install.sh

@@ -144,6 +144,7 @@ if [ -f /etc/modules ]; then
   fi
 fi
 
+
 # Make sure pigpiod is started at boot, and that user PI can restart it with sudo command
 echo "${SCRIPT_USER} ALL=(ALL) NOPASSWD: /usr/sbin/service pigpiod restart" > /etc/sudoers.d/terrariumpi
 # https://github.com/UedaTakeyuki/mh-z19/blob/master/pypi/mh_z19/__init__.py#L18

terrariumNotification.py

@@ -421,6 +421,11 @@ def stop(self):
     if self.telegram is not None:
       self.telegram.stop()
 
+    for messagetype in self.__notification_leds:
+      if self.__notification_leds[messagetype]['pin'] is not None:
+        GPIO.cleanup(self.__notification_leds[messagetype]['pin'])
+        self.__notification_leds[messagetype]['pin'] = None
+
   def set_profile_image(self,imagefile):
     self.__profile_image = imagefile
     if self.__profile_image is None:

terrariumSensor.py

@@ -4,7 +4,8 @@
 
 import os.path
 import re
-import mh_z19
+import subprocess
+import json
 from glob import iglob
 from time import time
 from pyownet import protocol
@@ -350,7 +351,6 @@ def scan_sensors(callback = None):
                                 os.path.basename(address),
                                 callback_indicator = callback)
 
-
 class terrariumOWFSSensor(terrariumSensorSource):
   TYPE = 'owfs'
   VALID_SENSOR_TYPES = ['temperature','humidity']
@@ -425,7 +425,10 @@ def set_address(self,address):
   def load_data(self):
     data = None
     if self.get_address() is not None:
-      data = mh_z19.read()
+      try:
+        data = json.loads(subprocess.check_output(['sudo', 'python', '-m', 'mh_z19']).decode('utf-8').replace("'",'"'))
+      except Exception as ex:
+        print(ex)
 
     if data is None:
       return None