It is possible that I had temperature sensors with duplicate names, e.g. "tz" and "tZ".

I think I managed to solve this problem with the help of Google. I also had trouble removing unnecessary devices—Domoticz was freezing. I disabled LUA scripts, removed the unnecessary devices, re-enabled LUA scripts, and observed that Domoticz was counting correctly. Thanks for the tips.

I had a problem removing devices—Domoticz was freezing. I temporarily disabled all LUA scripts, and now I can delete unnecessary devices.

I've noticed an error in the temperature delta between the supply and return. On the left is the value calculated by the ESP32, and on the right by the Domoticz script. Domoticz is calculating the delta incorrectly. Why?
When I restart the raspberry it counts fine for some time.
https://www.youtube ...

There is some problem.
Logs:
2025-12-23 20:39:31.087 Error: GetJSonDevices: exception occurred : 'stoull'
2025-12-23 20:40:00.970 Error: UpdateMultiMeter: Error converting sValue values! (IDX: 287, sValue: '-601;nil;nil;nil;nil;nil', dType: 250, sType: 1)
2025-12-23 20:43:33.064 Error: dzVents: An ...

Okay, I'll do it through P1.
I have a bidirectional meter at the property line – from the power company – and I'm curious how these two measurements will compare.
Of course, I could buy a bidirectional meter at home, but it's important that it works with Domoticz so I don't have to buy BACnet ...

I definitely need to create two output devices – one to count kWh drawn from the grid, and the other pumped into the grid. Two input devices: the total kWh from the photovoltaics and the total kWh consumed by the building.

Ok, Thank You, i will try.

Hi,
I've created my own dashboard for electricity consumption and production in a single-family home. It's based on a PZEM-004T system with six units. Three are for production and three are for consumption by the building. Now I need to create devices: the amount of energy in kWh, the energy pumped ...

I have a new challenge. In a new post. It concerns electricity, or rather, energy balance.

Okay, that's what I felt.

Ok, but I want to display today wh and total wh on the display. How to do it?

How to create a device that calculates only today Wh or total Wh ?

It works :). Thank you.
And actually providing the device with a value in Watts.
The key was writing the dz vents script:

return {
on = {
devices = {
200
}
},
execute = function(domoticz, device)
domoticz.devices(277).updateElectricity(domoticz.utils.round((domoticz.devices(252).temperature ...

In my opinion, this device is not working. It shows the current power in watts, but does not calculate energy in kWh. There is no data in the logs.

Computed or from device ?

For yr calculation you need:
Measure device for E-input
Temp measure device inlet water
Temp measure device outlet water
Waterflow measure device.

All available?


Yes. You're right.I have all of this. I need the device or script to calculate the device's power in watts x time, i.e., the amount ...

This is a diagram of an air-source heat pump. To the left of the wall is the outdoor air-source unit, and to the right is the building system with a glycol heat exchanger.

HvdW wrote: Sunday 21 December 2025 16:23 Easiest is to ask AI to write the script. AI has no problem writing dzVents.

BTW Can you share how to write your beatiful Dashboard?

Please, if you want.

So correct me if i'm wrong but you want to take Retour to well temperature ( 22.31 C) minus From well temperature (20.5 C) what gives Delta-temperature (dT) of 1.81 C right now.
The flowrate (m) is now zero L/minute but in the calculation you need L/second so divide by 60.

You don't specify the ...