Add HomeWizard WiFi watermeter in Domoticz

[mvveelen]

Whoops !

In Setup >> Settings >> Meters/Counters I had 1000000 for Water. Probably because I have been experimenting in the past with a Wemos D1 Mini board and a sensor.... The divider was 0, now I have this and I think it's right:

Scherm­afbeelding 2023-04-21 om 21.49.10.png (114.25 KiB) Viewed 3081 times

[FireWizard]

Hello @mvveelen,

In this case, I also understand your 1,000.000
I think these values look much more realistic.

Regards

[mvveelen]

Thanks, I’ll monitor the values the next few days.

Edit: it's OK like this. The values are not very exact though.

[diekli]

I've edited my post to include the code brackets,

My - updated and now working - script is listed below.


*******

Manual JSON request from a browser:
{"wifi_ssid":"XXX","wifi_strength":32,"total_liter_m3":0.087,"active_liter_lpm":0,"total_liter_offset_m3":0}



Domoticz versie: 2023.1

HTTP Poller: GET
Content type: application/json
URL: http://192.168.X.Y/api/v1/data
Command: water.lua

Directory: /home/pi/domoticz/scripts/lua_parsers
4 -rw-r--r-- 1 root root 843 May 14 15:30 water.lua

Code: Select all

-- Read API values
s = request['content'];

PRINT_MODE = true --true false  -- when true print all used values

print('Water script')

local info = debug.getinfo(1,'S');

if PRINT_MODE == true then
print (' ')
 print('*** Start van ' .. info.source .. ' script')
print ('Json response: ' .. s)
end


--
-- Watermeter
--
local idWater = 46
local a = domoticz_applyJsonPath(s,'.active_liter_lpm')
domoticz_updateDevice(idWater,'',a)

if PRINT_MODE == true then
 print('Waterverbruik:  ' .. a)
end

local idWaterTotaal = 45
local b = domoticz_applyJsonPath(s,'.total_liter_m3')
domoticz_updateDevice(idWaterTotaal,'',b)

if PRINT_MODE == true then
 print('Totaal water verbruikt:  ' .. b)
end

if PRINT_MODE == true then
print('*** Einde  van ' .. info.source .. ' script')
 print (' ')
 

[mvveelen]

Hi, please use the 'code' brackets when you post code and also try to use English here.

Do you use other LUA scripts that work? In other words, is LUA activated in Domoticz?
Do you receive errors or no messages at all?

My code:

Code: Select all

-- Read API values
s = request['content'];

--
-- Watermeter
--
local idWater = 2099
local a = domoticz_applyJsonPath(s,'.active_liter_lpm')
domoticz_updateDevice(idWater,'',a*1)

local idWaterTotaal = 2100
local b = domoticz_applyJsonPath(s,'.total_liter_m3')
domoticz_updateDevice(idWaterTotaal,'',b*1000)

local idWaterVerbruik = 2101
local c = domoticz_applyJsonPath(s,'.total_liter_m3')
domoticz_updateDevice(idWaterVerbruik,'',c*1000)

My devices:

Scherm­afbeelding 2023-05-14 om 19.44.37.png (58.8 KiB) Viewed 3009 times

Haven't changed the rights of the file water.lua by the way, so what you have should be OK.

[diekli]

Hi,

Apologies for not using the right brackets !

The solution: the following line was a comment, I guess that prevented the main part of the code from running.
Correct line below.

Code: Select all

local info = debug.getinfo(1,'S');

Thank you for responding.

[Eraser]

I have written a Python plugin for the watermeter. Check the HomeWizard Wi-Fi Watermeter on Github.

[heggink]

Just got the device and installed the plugin. World really nicely! Thx!!

[sincze]

Yes the mentioned P1 & Watermeter plugin are working excellent

[CronoS]

Is it possible to use this HomeWizard watermeter if I do not have anything else from HomeWizard I do not have a subscription with them. I am interested to set up this watermeter in combination with domoticz

[sincze]

Is it possible to use this HomeWizard watermeter if I do not have anything else from HomeWizard I do not have a subscription with them. I am interested to set up this watermeter in combination with domoticz

Yes, I have only their (P1 and Watermeter) devices.
You only need their APP to set it up but that is basically it.
Then you can cut Internet connection for the device and use it locally.

[CronoS]

Is it possible to use this HomeWizard watermeter if I do not have anything else from HomeWizard I do not have a subscription with them. I am interested to set up this watermeter in combination with domoticz

Yes, I have only their (P1 and Watermeter) devices.
You only need their APP to set it up but that is basically it.
Then you can cut Internet connection for the device and use it locally.

Thanks for the answer. So you don't need to have the P1 meter with it? Only you need the app during the initial setup, afterwards you don't need it anymore... That is great..

[CronoS]

Hello @Hesmink

Go to your Watermeter widget and click "Edit".


Screenshot_WaterUsage_Widget.png


The "Configuration" screen will open and insert the desired value.


Screenshot_WaterUsage_Widget_Config.png


Insert the desired "Meter Offset" and click "Update".

Regards

I don't get It.. I don't see the Meter offset in my widget? Any Idea? I have added a Custom sensor with m3 as label. It is a General / Custom Sensor. The device updates OK; but I cannot set the offset on the device because the value is not the same as in the Homewizard app..?

[waltervl]

The offset value is available on the counter device.

[FireWizard]

Goodevening @CronoS,

If you had read the thread from the beginning, you would have found the following line in a post of @Hesmink (30 december 2022).

Got it. As per OP, I used the custom sensor, and you cannot add the offset there. I now updated it to a counter of type water. Issue solved, thanks.

So the "Custom"sensor is the wrong choice.
Use a counter and configure it as water.

Regards

[CronoS]

Goodevening @CronoS,

If you had read the thread from the beginning, you would have found the following line in a post of @Hesmink (30 december 2022).

Got it. As per OP, I used the custom sensor, and you cannot add the offset there. I now updated it to a counter of type water. Issue solved, thanks.

So the "Custom"sensor is the wrong choice.
Use a counter and configure it as water.

Regards

Sorry; my mistake. I only have red the first page hahaha.. I even didn't saw that there was already a plugin now. Installed it and seems to work OK.. Thanks!

[bvdf0251]

I have written a Python plugin for the watermeter. Check the HomeWizard Wi-Fi Watermeter on Github.

Hi Eraser,

This is great, my usage is only shown rounded to 10's

So 100 liters, of 320 etc. Never 44 liter or 182.

Could this be due to settings?

Meter counter divider settings

Screenshot_20231218_132047_Chrome.jpg (77.63 KiB) Viewed 2291 times

[FireWizard]

Hi,

Could this be due to settings?

Yes

Change the setting for "Water" to 1000 instead of 100.

Regards

[bvdf0251]

Thanks FireWizard,

Would that mean my data so far should be deleted.

As it's now showing 50 liters today where the original was 500~

Family of 4 all showered today and the washer machine ran several times today.

So 500 is about right.

[FireWizard]

Hi @bvdf0251,

Technically it is not necessary to delete existing data, as long as you realise that the data so far is incorrect. This data should not be used for any comparison..

To avoid mistakes, I would recommend to delete the data and start from scratch.
Do not forget to insert a correct off-set.

Regards