Add some basic error checking to warn for faulty sensor and cables.

bin/rsump.py

@@ -8,6 +8,7 @@
 # MIT License -- http://www.linuxnorth.org/raspi-sump/license.html
 
 import time
+
 try:
     import ConfigParser as configparser # Python2
 except ImportError:

raspisump/log.py

@@ -39,3 +39,13 @@ def log_alerts(notification):
     alert_log.write(notification),
     alert_log.write("\n")
     alert_log.close()
+
+
+def log_errors(notification):
+    '''Log all errors'''
+    error_log = open("/home/pi/raspi-sump/logs/error_log", 'a')
+    error_log.write(time.strftime("%Y-%m-%d %H:%M:%S,")),
+    error_log.write(notification),
+    error_log.write("\n")
+    error_log.close()
+

raspisump/reading.py

@@ -44,8 +44,13 @@ def water_reading():
     unit = configs['unit']
 
     value = sensor.Measurement(trig_pin, echo_pin, temperature, unit, round_to)
-    raw_distance = value.raw_distance(sample_wait=0.3)
-
+
+    try:
+        raw_distance = value.raw_distance(sample_wait=0.3)
+    except SystemError:
+        log.log_errors("**ERROR - Signal not received. Possible cable or sensor problem.")
+        exit(0) 
+
     if unit == 'imperial':
         return value.depth_imperial(raw_distance, pit_depth)
     if unit == 'metric':

setup.py

@@ -1,6 +1,6 @@
 from setuptools import setup
 import os
-version = '1.0.2'
+version = '1.0.12b'
 
 homedir = '/home/pi/raspi-sump/'