Domoticz

Draakje wrote: ↑Thursday 02 April 2020 21:19 Hi All,

I have a problem.. I kinda broke my python... and now this script is not working any more..

I have tried many things but my knowledge of pyhton is not that high.

when I run the script I get this error:

/usr/bin/python /home/domoticz/domoticz/scripts/watermeter.py
Traceback (most recent call last):
File "/home/domoticz/domoticz/scripts/watermeter.py", line 20, in <module>
f = file(fn, "r+")
NameError: name 'file' is not defined


Currently python v3.7 is installed

Other python scripts (like DeConz ) are running fine..

Any help is appreciated

Spoiler: show

Code: Select all

pi@domoticz:/var/log $ more cronlog.log
Callback function called!
Traceback (most recent call last):
  File "/home/pi/domoticz/scripts/watermeter.py", line 59, in Interrupt
    response1 = urllib2.urlopen(req1)
  File "/usr/lib/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1228, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1198, in do_open
    raise URLError(err)
urllib2.URLError: <urlopen error [Errno 101] Network is unreachable>
pi@domoticz:/var/log $

With the 'event script triggers' on I get this in the log:
 2020-07-07 09:54:51.825 Status: EventSystem: Script event triggered: /home/pi/domoticz/scripts/lua/script_device_watermeter.lua
2020-07-07 09:54:51.936 Status: EventSystem: Script event triggered: /home/pi/domoticz/scripts/lua/script_device_watermeter.lua
2020-07-07 09:54:51.943 Status: EventSystem: Script event triggered: /home/pi/domoticz/scripts/lua/script_device_watermeter.lua
2020-07-07 09:54:58.053 MQTT: Topic: domoticz/in, Message: {"idx":78,"nvalue":0,"svalue":"0;55380.2","Battery":100,"RSSI":8}
2020-07-07 09:54:58.239 Status: EventSystem: Script event triggered: /home/pi/domoticz/scripts/lua/script_device_watermeter.lua 

jvrietveld wrote: Like many of us I try to setup a watermeter with inductive NPN sensor. The led lights on and off when the wheel is spinning. I have setup all the devices in Domoticz but still the data on my dashboard is unchanged. The GPIO is connected on 21

Trigun wrote: ↑Tuesday 07 July 2020 10:01 Why use many different and complex scripts? I have an esp8266( with esp easy)with a proximity sensor. I’ve sanded 2mm of the orange tip for better detection and all the data is send to domoticz. I’ve been running it for three months now without any liters being lost.

jvrietveld wrote:

Trigun wrote: ↑Tuesday 07 July 2020 10:01 Why use many different and complex scripts? I have an esp8266( with esp easy)with a proximity sensor. I’ve sanded 2mm of the orange tip for better detection and all the data is send to domoticz. I’ve been running it for three months now without any liters being lost.

Hi Trigun,

Your comment prompted me to look at this solution. I have worked with esp8266 before in a NodeMCu and Wemos D1. The ESP Easy software is also very easy to configure. I think I'll try this url https://robothuis.nl/2020/05/01/waterme ... -domoticz/ as a new way to solve this.

pvangorp wrote: ↑Wednesday 06 September 2017 20:45 I've upgraded my script by adding a "uservariable" this makes it possible to set the initial value and to make a correction when your PI is off for a while. Create a user variable called "WaterMeter" and enter the meter value eg "999999" (Where "999999" = 999.999m3). When the value is "0" it ignores the user variable.
I also added a variable for IDX, to make it easier to change the script.
So you don't need the line

To set the initial meter values http://<<YOUR DOMOTICZ IP>>/json.htm?type=command&param=udevice&idx=34&svalue=999999

any more

My updated script

Code: Select all

commandArray = {}

-- Set IDX of Watermeter
iIDX = 34

-- Set Watermeter based on user variable "WaterMeter"
if ( uservariables["WaterMeter"] > 0 ) then
    print("Water usage is set to " .. uservariables["WaterMeter"] / 1000 .. "m3 by user")
    commandArray['UpdateDevice'] = ''..iIDX..'|0|'..uservariables["WaterMeter"]..''
    commandArray['Variable:WaterMeter'] = tostring(0)
end

-- Water usage
-- Retrieve value from water meter device:
sWaterUsage = otherdevices_svalues['Waterverbruik']

-- To have a better readable format, divide number by 1000:
sWaterUsagePrint = tonumber(sWaterUsage / 1000);

-- calculation is done with the unmodified water value
sWaterUsage = tonumber(sWaterUsage);

-- For Debuging
-- print("Water usage until now is " .. sWaterUsagePrint .. "m3 ")
-- print('GPIO Watermeter = '..otherdevices['GPIO Watermeter'])

function timedifference(s)
   year = string.sub(s, 1, 4)
   month = string.sub(s, 6, 7)
   day = string.sub(s, 9, 10)
   hour = string.sub(s, 12, 13)
   minutes = string.sub(s, 15, 16)
   seconds = string.sub(s, 18, 19)
   t1 = os.time()
   t2 = os.time{year=year, month=month, day=day, hour=hour, min=minutes, sec=seconds}
   difference = os.difftime (t1, t2)
   return difference
end

if (devicechanged['GPIO Watermeter'] == 'Off')
then
	sWaterUsageTot = (sWaterUsage + 1)
	
	print("Water usage is set to " .. sWaterUsageTot / 1000 .. "m3 ")
	commandArray['UpdateDevice'] = ''..iIDX..'|0|'..sWaterUsageTot..''
else
    -- Keep a live device
    if (timedifference(otherdevices_lastupdate["Waterverbruik"]) > 300)
    then
        print("Water usage is still " .. sWaterUsage / 1000 .. "m3 ")
        commandArray['UpdateDevice'] = ''..iIDX..'|0|'..sWaterUsage..''   
    end
end

return commandArray

Joost996me wrote: ↑Friday 22 January 2021 13:51 Hi all,

Got my sensor working using the LUA scripting. Still got a problem with the counter increasing, although the led is not on activated. This causes the meter to read appr 50-70 an hour without any usage..

Read something about shielding the cable, but could it also be a error in the script?

pedemo wrote: ↑Wednesday 08 May 2019 13:08 its true that in some cases the 5v of the Rpi is not sufficient. a different power supply might help.
when you use the battery, does domoticz get a signal?

JeeGee wrote: ↑Friday 24 January 2020 19:35 My PNP with the plugin was running fine, but this week I had 3 times the issue that the measuring went crazy.
Examples: in one hour it said I used 400 liters, out of the blue and even one time 15.000 liters.
Tried to place the PNP a it different, but so far it didn't help.

Anyone else seeing this? And could be the cause?

 Error: (FindModule) Domoticz/DomoticzEx modules not found in interpreter.

Troubleshooting
Importing Modules Fails
...........
Broadly these are: the plugin directory, the existing Python path as picked up when Domoticz started and the 'site' directories for system level modules installed with pip3. Local 'site' directories are not searched by defaul although plugin developers can add any directory the like to the path inside the plugin. Pip3 installs packages in system directories when sudo is used on linux platforms.

GeyerA wrote: ↑Thursday 25 November 2021 18:19

JeeGee wrote: ↑Friday 24 January 2020 19:35 My PNP with the plugin was running fine, but this week I had 3 times the issue that the measuring went crazy.
Examples: in one hour it said I used 400 liters, out of the blue and even one time 15.000 liters.
Tried to place the PNP a it different, but so far it didn't help.

Anyone else seeing this? And could be the cause?

Hi, I now also installed a Zenner NPN and did run with ESP8266 (espeasy) without problems. I sent the count to a virtual sensor and did not encounter any issues.
I then thought lets hook up the sensor directly to PI running the plugin. I also get once or twice a day peak values of over 100 litres consumption although no water was used. I set-up the Telegram notification on "above" 100 litres consumption and that one even keeps on sending messages with the disabled plug-in (and disconnected sensor). I moved back to ESP8266 HTTP to Domoticz. In my opinion, this got nothing to do with sensor position since it works just fine on Espeasy, but same setup with plugin, twice a day peak values of over 100 litres. If somebody guides me to better logging I am happy to re-set up with plugin....maybe akamming is able to help.