Domoticz & Gas usage on LCD

[jacekk233]

Hello
I have Gas counter made on Counter incremental in Utility - it works well.
Few days ago I connected LCD 20x4, where I send some parameters , like temperatures or pressure and it's OK, but when i tried to send actual daily gas usage from counter incremental I bumped into some problems.
Eg. today's gas usage is 4,5 m3, but I can see sth like that 018446744073709187545 on LCD screen.

What should I use in dzVents or lua to to see proper value on LCD?

[willemd]

in dzVents domoticz.devices(IDX),counterToday should do it. (replacing IDX by the number of the device).

What do you see if you print that value to the logfile? And do you see something different on your LCD?

[jacekk233]

I thought about counterToday value.
when i used

/js...htm?type=devices&rid=IDX

i saw the value of Counter & CounterToday, but i didn't know how to do to show counterToday value on my LCD.

Now I see value 018446744073709187545 like in a logfile , not like 4,5 (as shows CounterToday)

Could you show me an example?

[willemd]

This is a small dzVents script that prints the counterToday value to the logfile (in the example of device with idx 105)
If you add a line that updates the LCD with the value domoticz.devices(idxOfCounter).counterToday then it should work.
How to do that is up to you. I don't know the interface towards that LCD screen.

Code: Select all

local idxOfCounter=105
return {
	on = {
		devices = {
			idxOfCounter
		}
	},
	logging = {
		level = domoticz.LOG_INFO,
		marker = 'template',
	},
	execute = function(domoticz, device)
		domoticz.log('Device ' .. device.name .. ' was changed', domoticz.LOG_INFO)
		domoticz.log('New value counterToday is '..domoticz.devices(idxOfCounter).counterToday, domoticz.LOG_INFO)
	end
}

[jacekk233]

Thanks for your script- it works perfectly.

I send data to the LCD as in the attachment:

but if i tried to implement part of your script to take out counterToday parameter it doesn't work i suppose i have a mistake.

Can you give me any clues?

[willemd]

It seems you are mixing dzVents with LUA. I am not familiar with LUA and don't know how to get the counterToday value in your LUA script.

But if you make this a dzVents script and then use the openURL command in dzVents, you could update your LCD in that way.

[jacekk233]

OK. I'll try clarify all problems

So far some values like temperatures, pressure i send to LCD in lua.script as in the attachment and it's OK - i don't want to change it now,



Another part of data like relays status i send to LCD in another script (DZVents) - in attachment,
"*" means relay ON, "-" means OFF


But I don't know how send value of variable in dzVents script- in attachment
I've tried to modify script from you, but I still don't know how to send value of gas sending (counterToday), sending to log file obviously works well:
This parameter could be send like e.g. var12 or something another.


LCD Display i've made on ESP with tasmota
The part of tasmota rule is presented below:

ON event#BELL=1.000 DO backlog power2 1;ruletimer1 30;DisplayMode 0;DisplayText[l1c1]P;DisplayText[l1c2]%var12%[l1c7]%mem1%/[l1c12]%mem2%[l1c17]%mem4%[l2c1]OUT:[l2c7]%mem5%[l2c12]%mem6%hPa[l2c22]LP%var2%[l2c26]OS%var1%[l2c30]CO%var3%[l2c34]HW%var5%%var6%%var7%[l3c1]SALN: %mem10%/[l3c12]%mem11%[l3c17]%mem7% ENDON


If it works well I'll prepare it in one dzVents script

[willemd]

The dzvents document shows two ways of calling the openURL:

1) the simple one, without callback:
domoticz.openURL('http://domain/path/to/something?withparameters=1')

2) the asynchronous one, with callback:
domoticz.openURL({
url = 'http://domain/path/to/something',
method = 'POST',
callback = 'mycallbackstring',
postData = {
paramA = 'something',
paramB = 'something else'
}
})

It seems you created a mix of the two.

[jacekk233]

I give up.

i was trying to send data to LCD in the end of script in attachment, but without any results

I need help, please

[willemd]

The main thing is to get the URL correct first. If it is working in a browser, it should also work in the URL call.

I see that you have the round function within the quotes, so it will pass as a string.
That line should be
url = '192.168.1.205/control?cmd=event,lcd,1,2,'..round(gas_usage,1),

To be sure you could first assign the url to a variable and print the variable to the log file. In that way you can inspect the correctness of the url.