Pulse Counter

[Shardan]

Hello Insippo,

which electricity meter do you use? Does it have two connectors "S0+" and S0-" ?

Regards
Shardan

[insippo]

Yes. These 2 connectors

[Shardan]

Yes. These 2 connectors

Then it should be easy to do.
These counters usually have a so called "Open Collector" output.
You will need just a resistor 2,2K .... 10 K and some wiring:

Counter-Connection.jpg (27.93 KiB) Viewed 44440 times

.
The wiring should not be too long as i assumed the ESP is placed near the counter.
Use the "Pulse Counter" in ESPEasy to get the readings.

Hope that helps

Regards
Shardan

[insippo]

Thank you. Tomorrow i tray if i find time. This is easier than mysensors with billoim wires If my wifi signal reaches out.
What GPIO nr. need use ?

[Shardan]

Hello,

I'd recommend not to use the GPIO0 as it is used for flashing.
Any other GPIO can be used, it's configurable in the ESPEasy devices.

Regards
Shardan

[insippo]

Okay.
Thank you.

[lassiko]

Hello,

I have some issues to get right values from ESP easy (latest build) to Domoticz.
Earlier, i was using mysensors Arduino nano node pulsecounter for this, but range was not good with that one
I changed to Wemos + ESPeasy, which gives me a better range. Problem is, that with ESPeasy, i cannot get correct values to my "Electric (Instant + Counter)" device in Domoticz.

Earlier with Arduino, i was able to get data, which was shown correctly on this: INSTANT, OVERALL, TODAY Info, all are important.
(with values of course)

Now with ESP easy, i get values only like this:


I know this is problem of a form data is send to Domoticz, but i do not have skills to make it right
Maybe someone can help me with this?

Thank you!

[toffel969]

I just had the same problem literally 30 min ago.

This is how to fix it: Choose Normal counter incremental device as dummy

Then under settings in Domoticz, change the Pulse value for energy to whatever fits your purpose

[Shardan]

This is great.!
Question about esp connection to electricity meter. How to connect directly to meter ? Without ldr or photo diode. My electrycity meter has 2 contacts for this.

Hello,

the connection is simple, as long as your counter has the "S0" pulse output:

Counter S0 Connet.jpg (30.97 KiB) Viewed 44298 times

.
Yes, that simple

The "S0" connect is a standardized output without own voltage supply so you have to add the resistor.
That makes it easy to connect to the 3,3V ESP.

BTW just a hint:
For questions like this it's better to open a new thread in the forum then attaching to an existing thread.
Other users searching for the same problem will never find it here


Regards
Shardan

[The_Rascal]

Its working now on another ESP, giving some numbers but the only problem left its to set it correctly in domoticz its giving only 30 - 40watts and no kWh counting.


Thank you!

Hi. To get a reading from the pulse counter in Domoticz . Go back to your esp and change you formula to "%value%*60". The pulse counter resets its value every minute so this gives you the most accurate values.

Mind you it also means that as your only counting from 2 to 30 pulses a minute, your value will go up and down by 60 Watts in Domoticz.

Make sure that in Domoticz its computing the value and using "Instant & Electric Counter"

[lassiko]

I got it working. Dummy device is: General, kWh. Type is: Usage and Computed.
In Espeasy i made settings for Pulse counter:

Delay: 60
Debounce Time (mSec): 100 (did not work correctly lower than this value).
Data so send: Delta

Formula for usage: "%value%*3600/60" (this gives me a Instant usage)
Formula for Total: %value%/1000 (this gives me a total evergy usage / hour / day / etc... )

With these settings, i got exactly same values than my electric company informed me. Hopefully this helps someone else with same case.

[Ton_vN]

To get a 'standard' output to Domoticz, the 2 formulae in ESPEasy need to be corrected for the number of pulses per kWh coming out of the S0-interface, because kWh-meters exist with rates different from the 'nominal' S0-value of 1000pulses/kWh.
Examples known with pulse-output as low as 1/kWh (SDM120C, at the adjustable S0-interface) and as high as 3200pulses/kWh (for DDS238).

[Ton_vN]

Just a check/question for understanding.

The Pulse-Counter-interface of ESPEasy also produces/provides a value Time.
What is the content of this value Time?
If the ESP8266 is connected to an S0-interface is there any meaningful application of this Time-value e.g. related to calculation of Usage?

The choice for upload to the controllers is

• Delta

• Delta/Total/Time

• Total

Any rule of thumb for related optimal setting at the receiving end in Domoticz?

[vojtishek]

Hi all,

I would like to get a Time value only from Pulse sensor as my termostat for heating turn on light when active.
If there is possibility to have a time in domoticz, then I can calculate somehow appr. consumption.

Any idea please?

Thanks
Vojta

[vojtishek]

Another issue when tried to measure just count when thermostat turned on and light started to shine.
Its a light through the red cover, diode on pulse counter get it, but counter went mad and still increasing dozens of counts.

When tried normal handlight blink worked like a charm.

Kinda desparate

[Naesstrom]

I'm planning on attaching a ESP to my S0 interface to and the connections seems clear... but could anyone share some info on what rules/calculations to use based on the imp/kwh on the reader? How often should the ESP send the value etc?
I'm not using domoticz but home-assistant so I don't have your nifty premade configs!

[grovkillen]

I'm planning on attaching a ESP to my S0 interface to and the connections seems clear... but could anyone share some info on what rules/calculations to use based on the imp/kwh on the reader? How often should the ESP send the value etc?
I'm not using domoticz but home-assistant so I don't have your nifty premade configs!

Here's my 1 year old config that is still running. You may use it as inspiration: https://testoftimes.com/2017/11/25/moni ... g-esp8266/

[Naesstrom]

Here's my 1 year old config that is still running. You may use it as inspiration: https://testoftimes.com/2017/11/25/moni ... g-esp8266/

Sweet thanks, I can't see a difference between kWh and kWh (time)?

[grovkillen]

No, it's not used (the time value). So they are the same.

[vojtishek]

Hi all,

just installed counting as per scheme and it looks working properly. I've did one check after 8 hours to merge counter and my domoticz measures. Results were same on both sides.

One hint for you which will find S0 output on pins 20 and 21.
Polarity as per follow S0 - 20(+), 21(-).

Thanks for guidance .

[dony71]

i have this smart meter attached
i use similar infrared sensor module and attached to infrared port on smart meter
and measure with oscilloscope, but cannot see any digital signal out from the module.
i'm wondering whether this infrared port on the smart meter needs to be enable?
if need to enable, then how to enable? only electric provider company can enable this?

[HomeJCL]

There are gazillions types of this meter available.

Easiest is to check with you company what is available as output on their standard meter, if any

Build from there

If scope says no IR most definitely it is a programming/communication port for service purposes