💬 Power Meter Pulse Sensor

[moumout31]

@flopp Thanks a lot, I will try this solution and check if it's better !

[moumout31]

@flopp It seems to work, index on Domoticz is still consistent with the real index... I will see in a few days if it's still the case.
Thanks a lot for your help !

[moumout31]

@flopp After a few days, I confirm you that the index is consistent with power meter index.
However, instant power in watt is not correcly calculated.
For example, when power meter indicates 550W, about 1500W is calculated by the sketch. Do you know how I can resolve this problem please ?

Thanks a lot !

[flopp]

@moumout31
Watt calculation is using time between two interrupts.
How often do you send watt?
Did you measure watt with a measurement tool How did you get 500 watts from power meter?
When you send watt you need to measure exact same second otherwise it will not be correct.

[moumout31]

@flopp Watt is sent every 20 seconds (as done in the original sketch).
500 watts is the power indicated on the screen of the power meter.

[NiklasO]

Just changed from 1-wire counter to MySensors for logging my power consumption. Using the same LED detector as I did when using 1-wire. Also changed watt limit to 20 000 (my heat pump likes to use 9-10kW sometimes). The wires from the old 1-wire net now provide power for the new MySensors-sensor. I have 10 000 led blinks per kWh. Had som crazy counter values with 1-wire that totally messed up the graphs and haven't seen anything like that with this sketch. Let's hope it stays that way. ;) Dumping data to Domoticz. This sensor gives me higher resolution as a bonus. The 1-wire counter was read every minute, this every 20-sec. ;-)

My old 1-wire counter with one crazy value messing upp all the graphs:

I know that you can hold shift and click the value that is crazy to make the graphs show up good but you loose the data for the full day. That's not good. ;-)

[Samuel235]

I seem to be getting a connection to my gateway, while monitoring the two topics for the gateway i only seem to see any activity regarding this sensor on the gateway-out topic, and it keeps sending out a type 2 message (req). The serial monitor of the sensors is showing:

104198 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
114199 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
124200 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
134201 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
144202 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
154203 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
164204 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
174205 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
184206 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:
194207 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:

So it seems to be sending a request package, but i don't see it on the gateway-in topic and i see other sensors sending data to the gateway-in topic so i'm not subscribed to the wrong one. Is this a structural request message or is this the feature that requests the last known message from the gateway? Either way, there doesn't seem to be any sensor data being sent from the node to the gateway.

[sundberg84]

@Samuel235 said in 💬 Power Meter Pulse Sensor:

164204 TSF:MSG:SEND,16-16-0-0,s=1,c=2,t=24,pt=0,l=0,sg=0,ft=0,st=OK:

I dont know if I dont understand you, but it seems like your node is requesting the last pulse counter. I have mentioned this in several threads I have a problem with this (both this thread and rain sensor thread). Im using an ethernet gw and the request reaches the gw but there my error led blinks and it fails to send it back (or recieve it on the node) so it re-request it.

I have never been able to pinpoint it due to repeaters in between.
https://forum.mysensors.org/topic/2116/hard-to-grab-time-and-value-sent-from-controller/ (old).

[Samuel235]

@sundberg84 - You do understand me correctly :). I made a thread on the troubleshooting section of the forum for this simply because i suspected it was normal behaviour, however. It seems that the node isn't sending any other data to the gateway at all and it can not get the previous value as there isn't one. So, my post here and on the troubleshooting section was me aiming to get to this point and then troubleshoot the actual node to see what can be done to get it to send data.

[Samuel235]

Has anyone came across their pulse meter not sending the message for WATT, the other two messages are being sent perfectly fine. My WATT message has been working all day and suddenly stopped.

[NiklasO]

Make sure that you don't reach your wattage limit in the sketch.

[Samuel235]

@NiklasO - Where is this value stored? I've cleared the EEPROM and the MQTT topic too, but it still refuses to send the watt value.

[NiklasO]

@Samuel235
In the sketch, change this
#define MAX_WATT 10000 // Max watt value to report. This filetrs outliers.
I have it set to 20000, using 15 000 easily when it's cold outside. ;-) Just make sure that you use the right divider for your pulse/kWh count.

[Samuel235]

Ahh i see what it is it; its set to not send if it hasn't changed.... how much of a silly error that was from me. The wattage is way below 1000 but because i'm using a normal LED on another arduino flashing at a constant rate to set my node up, its not changing the watt value.

Back to solving my initial issue now >.<

Thank you.

[NiklasO]

Ah, I see. Well, I would like the sensor to send data even if it hasn't changed. What did you change?

[gohan]

Watt usage is normally changing all the time, so you should have data reported quite often

[NiklasO]

@gohan But Samuel235 had that problem? ;-) Edit: well, ok, he had a different setup. I need to read better. ;)

[Samuel235]

To be honest, i had it running for a while before it stopped sending the WATTS. But i'm guessing this is the issue as if i vary the blinks it sends it. I'de like to see if anyone has this working recently on OpenHAB through means of not touching the node sketch like people have posted before. I have an idea to send the data of the pulse count message onto the request message topic on MQTT and so then when it requests previous count it would have it.

[Samuel235]

This post is deleted!

[mickecarlsson]

EDIT:
This was not the case, I am still debugging the issue, in the mean time I have deleted the code.

After some debugging it seems that Domoticz messes with the V_WATT and V_KWH, and the solution is to have two sensors, one for kWh and one for W.
After I changed it, I have consistent W and kWh.
See also this issue for Home Assistant