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how to read Device values and write in Text file
Posted: Wednesday 05 July 2017 13:22
by Rezah
hi there
i want to read all devices value and write them in a sensor.txt file.
i write a script for read from one device and write to text file and its work, but when i want read more than one device i get several error.
First code : read from one device
Code: Select all
commandArray = {}
luxsensor = "ESP2_Lux"
if (devicechanged[luxsensor]) then
print( " ####lux debug: "..devicechanged[luxsensor])
file = io.open("sensor.txt", "w+")
file:write("Sensors Status \n")
file:write(luxsensor.." : "..devicechanged[luxsensor].."\n")
file:close()
end
return commandArray
Code: Select all
commandArray = {}
luxsensor = "ESP2_Lux"
smokesensor = "Smoke_Sensor"
if (devicechanged[luxsensor]) then
print( " ####lux debug: "..devicechanged[luxsensor])
file = io.open("sensorl.txt", "w+")
file:write("Sensors Status \n")
file:write(luxsensor.." : "..devicechanged[luxsensor].."\n")
file:write(smokesensor.." : "..devicechanged[smokesensor].."\n")
file:close()
end
return commandArray
i get this:
2017-07-01 15:26:29.442 Error: EventSystem: in Lua LUX: [string "commandArray = {} ..."]:13: attempt to concatenate field '?' (a nil value)
please help me
tnx
Re: how to read Device values and write in Text file
Posted: Wednesday 05 July 2017 21:42
by freijn
You do the first action on basis that the luxsensor value is changed.
In the second script you do the same only for the smokesensor there is nothing changed so I guess no info so no content which is a nil value.
Not sure home many sensors you are planning to log but why not make the same ( single sensor script ) for the smokesensor?
See below..
or......
Store all devicechanged values of sensors in variables, then have a separate script writing all variables in the file.
You could trigger the write file script by 1 of the deviced changed scripts.
Hope my story is not too smokey
commandArray = {}
smokesensor = "Smoke_Sensor"
if (devicechanged[smokesensor]) then
print( " ####lux debug: "..devicechanged[smokesensor])
file = io.open("sensor.txt", "w+")
file:write("Sensors Status \n")
file:write(lsmokesensor.." : "..devicechanged[smokesensor].."\n")
file:close()
end
return commandArray
Re: how to read Device values and write in Text file
Posted: Thursday 06 July 2017 10:46
by Rezah
dear frejin
i tried to write same script for other devices, but i get errors.also i need to write all states of my devices to one file at same time.
lux is a parameter which changed every time and its good condition for me to read all device continuously.
but
i have try your second solution.
before that,can domoticz store values in userVariable automatically?
"Store all devicechanged values of sensors in variables, then have a separate script writing all variables in the file.
You could trigger the write file script by 1 of the deviced changed scripts."
Re: how to read Device values and write in Text file
Posted: Thursday 06 July 2017 14:29
by Rezah
i try frejin solution
Step 1:
write Script for all devices which i need them.
if device changed store the value in userVariables.
Code: Select all
commandArray = {}
luxsensor = "ESP2_Lux"
if (devicechanged[luxsensor]) then
commandArray['Variable:varLux']=devicechanged[luxsensor]
end
return commandArray
Code: Select all
commandArray = {}
smokesensor = "Smoke_Sensor"
if (devicechanged[smokesensor]) then
commandArray['Variable:varSmoke']=devicechanged[smokesensor]
end
return commandArray
Step 2:
write a script for aggregation userVariables and write them in text File.
Code: Select all
commandArray = {}
luxsensor = "ESP2_Lux"
smokesensor = "Smoke_Sensor"
year = tonumber(os.date("%Y"));
month = tonumber(os.date("%m"));
day = tonumber(os.date("%d"));
hour = tonumber(os.date("%H"));
min = tonumber(os.date("%M"));
if (2==2) then
file = io.open("sensorl.txt", "w+")
-- Opens a file named sensor.txt(stored under Domoticz folder)
-- in append mode
--write to opened file
file:write(year .. "-" .. month .. "-"..day.." "..hour..":"..min.."\n")
file:write(luxsensor.." : "..uservariables['varLux'].."\n")
file:write(smokesensor.." : "..uservariables['varSmoke'].."\n")
file:close() --closes the open file
end
return commandArray
Re: how to read Device values and write in Text file
Posted: Thursday 06 July 2017 20:23
by freijn
And?
You got it working now?
Re: how to read Device values and write in Text file
Posted: Saturday 08 July 2017 11:49
by Rezah
yes,its work correctly