Update .gitignore.

[chrisu/seepark.git] / seewasser.py

diff --git a/seewasser.py b/seewasser.py
index 1697206483ce4fc465a2da21c29fe26117473e5d..dfed1cfa06e6fa6379045aa8fe0d9e4758936456 100755 (executable)
--- a/seewasser.py
+++ b/seewasser.py
@@ -1,31 +1,89 @@
 #! /usr/bin/python3
 
 #! /usr/bin/python3
 

+import logging

 import datetime
 import datetime

+import re
+import sys
+import csv
+import os
+import configparser
+from sqlalchemy import create_engine

 
 

+#May 27 21:32 /sys/bus/w1/devices/28-0416a1bab9ff
+#May 27 21:33 /sys/bus/w1/devices/28-0416a1ac66ff
+#May 27 21:35 /sys/bus/w1/devices/28-0516a207a4ff
+#May 27 21:38 /sys/bus/w1/devices/28-0316a2193bff
+#May 27 21:38 /sys/bus/w1/devices/28-0316a21383ff

 
 

-jetzt = datetime.datetime.now()
-
-# print(jetzt)
-
+# Eine Funktion:

 # einen Sensor auslesen
 #/sys/bus/w1/devices/
 # einen Sensor auslesen
 #/sys/bus/w1/devices/

-sensorfile = "/sys/bus/w1/devices/28-0316a21383ff/w1_slave"

 
 

-file = open(sensorfile)
+class ReadsensorError(RuntimeError):
+    pass
+    
+    
+def readsensor(sensor_id):
+    sensorfile = "/sys/bus/w1/devices/28-{}/w1_slave".format(sensor_id)
+    file = open(sensorfile)
+
+    # Inhalt des Sensors:
+    # 64 01 4b 46 7f ff 0c 10 01 : crc=01 YES
+    # 64 01 4b 46 7f ff 0c 10 01 t=22250
+
+    # Suche nach YES
+    linecrc = file.readline()
+    match = re.search(": crc=[0-9a-f]{2} (YES|NO)",linecrc)
+
+    yesno = match.group(1)
+    if yesno != "YES":
+        raise ReadsensorError('Could not evaluate sensorfile "{}"'.format(sensorfile))
+        
+    # Temperatur raus
+    linetemp = file.readline()
+    match = re.search(" t=([-0-9]+)",linetemp)
+
+    temp_raw = match.group(1)
+    temp = float(temp_raw)/1000
+
+    file.close()
+    jetzt = datetime.datetime.now()
+
+    return jetzt, temp_raw, temp
+
+
+def writesensordatacsv(config, sensor_id, sensor_name, timestamp, value_type, value_raw, value):
+    # Schreiben des csv-files
+    file = open(config.get("csv", "filename"), "a", newline = "")
+    writer = csv.writer(file, dialect = "excel")
+    writer.writerow([timestamp.strftime("%Y-%m-%d %H:%M"), sensor_id, sensor_name, "{:.1f}".format(value)])

 
 

-content = file.read()
+    file.close()

 
 

-file.close()

 
 

-# Inhalt des Sensors:
-# 64 01 4b 46 7f ff 0c 10 01 : crc=01 YES
-# 64 01 4b 46 7f ff 0c 10 01 t=22250
+def writesensordatadb(config, sensor_id, sensor_name, timestamp, value_type, value_raw, value):
+    # Schreiben des db-files
+    user = config.get('database', 'user')
+    pwd = config.get('database','password')
+    host = config.get('database','hostname')
+    db = config.get('database','database')
+    
+    engine = create_engine('mysql+mysqldb://{}:{}@{}/{}'.format(user, pwd, host, db), echo=False)
+    conn = engine.connect()
+    conn.execute("insert into sensors (sensor_id, sensor_name, value_type, value_raw, value, timestamp) values (%s,%s,%s,%s,%s,%s)", sensor_id, sensor_name, value_type, value_raw, value, timestamp)
+    conn.close()

 
 

-temp = content[-6:-1]
-temp = float(temp)/1000

 
 

+def main():
+    config = configparser.ConfigParser()
+    config.read(os.path.expanduser('~/seewasser.ini'))
+    
+    value_type = "Wassertemperatur"
+    for sensor_id, sensor_name in config.items('temperature'):
+        timestamp, value_raw, value = readsensor(sensor_id)
+        writesensordatacsv(config, sensor_id, sensor_name, timestamp, value_type, value_raw, value)
+        writesensordatadb(config, sensor_id, sensor_name, timestamp, value_type, value_raw, value)
+        logging.info('Sensor {}: {:.1f}°C'.format(sensor_id, value))

 
 

-print(temp)

 
 

-# Nur für die Ausgabe wird gerundet
-print('Die Seetemperatur ist {:.1f}°C'.format(temp))
\ No newline at end of file
+main()