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Watermeter project final..
Posted: Friday 04 November 2016 13:48
by abc1000
First of all i'm not a guru...
But finally i'v got perfect watermeter readings with these.
LJ12A3-4-Z/BX schema and python script attached..
rename watermeter13.txt in watermeter13.py
Re: Watermeter project final..
Posted: Friday 04 November 2016 15:03
by stlaha2007
Sound interresting... can you explain a little more, eg. post a picture, details about the particular watermeter type/make/model of the sensor?
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Re: Watermeter project final..
Posted: Friday 04 November 2016 15:53
by abc1000
Here you are..

- watermT.jpg (185.75 KiB) Viewed 3765 times
Re: Watermeter project final..
Posted: Friday 04 November 2016 16:42
by Derik
Great job for the first time
And now try to upload this data to Pvoutput.....
Very nice graphs..:
http://pvoutput.org/aggregate.jsp?id=15 ... 63&v=0&t=m
Monthley live days years seasons weather etc etc..
Re: Watermeter project final..
Posted: Friday 04 November 2016 17:55
by Hesmink
Where do you get the 8V from?
I got the same sensor, but it didn't work with 5v.
Re: Watermeter project final..
Posted: Friday 04 November 2016 17:59
by Hesmink
While I'm at it, I understand the resistors, but what capacitor do I need for this?
Re: Watermeter project final..
Posted: Friday 04 November 2016 18:03
by Derik
sorry..
Only perhaps a ESP2866 icl a watermeter and a temp senors and a p1 ...
Easy to built..
Re: Watermeter project final..
Posted: Friday 04 November 2016 18:50
by abc1000
@Hesmink
8volt is from a ac/dc chinese adapter...because 5v is too low for the sensor.
@Hesmink
a 100 nano farad capitor is ok
Re: Watermeter project final..
Posted: Friday 04 November 2016 22:17
by stlaha2007
Great job. Need to look at the script and see if i can use it with my type of watermeter.
In combination with my PI and to be P1SmartMeter Reader.
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Re: Watermeter project final..
Posted: Sunday 10 November 2019 10:15
by remko2000
I have connected the sensor according to the diagram of abc1000. It seems to work well.
How do I use the added pythonscript? Is there somekind of manual? How do I integrate it in domoticz? Can someone put me on the right track?