Is it gonna rain within the next X minutes?

[poudenes]

Thanks. If 60 and 120 min works.. then its better then nothing for now
Ill follow this topic and see if the script will be updated !!

@poudenes
It's a Lua script.
But forget about the script i amended.
After a closer look it aint working as i intended.
The 60 and 120min forecast are printed but are presenting the 30min prediction.
Need a closer look.

[krizzz]

After copying the script from the wikipedia https://www.domoticz.com/wiki/Is_it_gonna_rain the script gives an error

Code: Select all

./script_time_rain.lua: line 1: ----------------------------------------------------------------------------------------------------------------: command not found
./script_time_rain.lua: line 2: syntax error near unexpected token `('
./script_time_rain.lua: line 2: `-- IsItGonnaRain( int minutesinfuture)'

Anyone having an idea?

[jvdz]

How are you running this? ( What command did you run?)

Jos

[Dropshot]

Hi, I would like to make use of this script, only I dont know whether I'm doing it correct. I get this in my log:

Code: Select all

2017-04-23 17:00:00.403 LUA: Regen verwacht: 0 mm binnen 15 minuten.

So the script seems to be working, yet my device (Rain expected) isn't updated. It still says 'Hello World'.. How can I get this working?

[krizzz]

How are you running this? ( What command did you run?)

Jos

./script_time_rain.lua

[jvdz]

try this command:
lua script_time_rain.lua

Jos

[EdwinK]

Rain Expected:

Screen Shot 2017-04-25 at 21.23.34.png (24.08 KiB) Viewed 2293 times

Guess something is wrong :, because it's really raining outside.

[BarryT]

Screen Shot 2017-04-25 at 21.23.34.pngGuess something is wrong :, because it's really raining outside.

I think its because it is an "rain radar" so it doesnt show the rainfall at the moment, but only in future, like IS it gonna rain in 30 minutes, and if yes how much..
lat & lon correct?
What does the log says?

[BarryT]

Code: Select all

commandArray = {}
   minuten=30

btw, here can you change the "radar" time..
now it is giving a warning for the rain in 30 minutes, but you can change this to your needs.

[BarryT]

Hi, I would like to make use of this script, only I dont know whether I'm doing it correct. I get this in my log:

Code: Select all

2017-04-23 17:00:00.403 LUA: Regen verwacht: 0 mm binnen 15 minuten.

So the script seems to be working, yet my device (Rain expected) isn't updated. It still says 'Hello World'.. How can I get this working?

did you chmod the txt file? did you have the correct text idx?

[Dropshot]

Thanks, I hadn't chmod the file. Now it works!

[EdwinK]

Screen Shot 2017-04-25 at 21.23.34.pngGuess something is wrong :, because it's really raining outside.

I think its because it is an "rain radar" so it doesnt show the rainfall at the moment, but only in future, like IS it gonna rain in 30 minutes, and if yes how much..
lat & lon correct?
What does the log says?

Lat&lon are correct. Have accidentely deleted the logs, so can't tell.

[Siewert308SW]

Screen Shot 2017-04-25 at 21.23.34.pngGuess something is wrong :, because it's really raining outside.

Which script are you using, could pass it here?
In order to see how you set it up.
Because i have the feeling that you have setup the rainfall below 60 while the round number is setup to 1 decimal or less behind the comma.
Meaning the script says "0.003mm rain expected" but your widget gets updated to 0 decimal behind the comma.

[EdwinK]

Screen Shot 2017-04-25 at 21.23.34.pngGuess something is wrong :, because it's really raining outside.

Which script are you using, could pass it here?
In order to see how you set it up.
Because i have the feeling that you have setup the rainfall below 60 while the round number is setup to 1 decimal or less behind the comma.
Meaning the script says "0.003mm rain expected" but your widget gets updated to 0 decimal behind the comma.

This is the script I'm using

Code: Select all

local RainTextIDX = 113   -- your domoticz text device
debug = false -- enable or disable debug output
tempfilename = '../var/packages/domoticz/scripts/lua/tmp/Rain.tmp' -- be sure this is in the correct map, and give it chmod 0666
totalrain = 0
rainlines = 0

function IsItGonnaRain( minutesinfuture )
   url='http://gpsgadget.buienradar.nl/data/raintext/?lat=51.86&lon=4.41' -- this is important!! change the lat and lon to your needs!!
   if debug then print(url) end
read = os.execute('curl --connect-timeout 5 -s -o '..tempfilename..' "'..url..'"')   file = io.open(tempfilename, "r")

   while true do 
      line = file:read("*line")
      if not line then break end
      if debug then print('Line:'..line) end
      linetime=string.sub(tostring(line), 5, 9)
      if debug then print('Linetime: '..linetime) end

      linetime2 = os.time{year=os.date('%Y'), month=os.date('%m'), day=os.date('%d'), hour=string.sub(linetime,1,2), min=string.sub(linetime,4,5), sec=os.date('%S')}
      difference = os.difftime (linetime2,os.time())

      if ((difference > 0) and (difference<=minutesinfuture*60)) then
         if debug then print('Line in time range found') end
         rain=tonumber(string.sub(tostring(line), 0, 3))
         totalrain = totalrain+rain
         rainlines=rainlines+1
         if debug then print('Rain in timerange: '..rain) end
         if debug then print('Total rain now: '..totalrain) end
      end

   end
   file:close()
   
   averagerain=totalrain/rainlines
   return(averagerain)
end

function round(num, idp)
   local mult = 10^(idp or 0)
   return math.floor(num * mult + 0.5) / mult
end

commandArray = {}
   minuten=15
   RainPrediction = IsItGonnaRain(minuten)
   RainmmHour=10^((RainPrediction-109)/32)

   if (RainPrediction > 20  ) then
      verw = 3
      RainPredictionText=('('..round(RainmmHour, 1)..' mm) regen verwacht!')
   else 
      verw = 2
      RainPredictionText=('Voorlopig blijft het droog!')
   end
   
   commandArray[2] = {['UpdateDevice'] = RainTextIDX .. '|0|' .. tostring(RainPredictionText)}

return commandArray

At the moment the script is spewing out errors '2017-04-29 19:20:01.901 Error: EventSystem: in Regen Verwacht: [string "local RainTextIDX = 113 -- your domoticz te..."]:13: attempt to index global 'file' (a nil value)', so I stopped it for now.

[poudenes]

Used your script and work great here. Now figure out to change the interval. Want change it so every 10min it will check at buienrader for rain. Now i see lot of loggings:

2017-04-29 20:22:00.297 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.410 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.520 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.674 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.793 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.906 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:01.017 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:12.113 EventSystem: Script event triggered: REGEN 17.04.29

Screen Shot 2017-04-25 at 21.23.34.pngGuess something is wrong :, because it's really raining outside.

Which script are you using, could pass it here?
In order to see how you set it up.
Because i have the feeling that you have setup the rainfall below 60 while the round number is setup to 1 decimal or less behind the comma.
Meaning the script says "0.003mm rain expected" but your widget gets updated to 0 decimal behind the comma.

This is the script I'm using

Code: Select all

local RainTextIDX = 113   -- your domoticz text device
debug = false -- enable or disable debug output
tempfilename = '../var/packages/domoticz/scripts/lua/tmp/Rain.tmp' -- be sure this is in the correct map, and give it chmod 0666
totalrain = 0
rainlines = 0

function IsItGonnaRain( minutesinfuture )
   url='http://gpsgadget.buienradar.nl/data/raintext/?lat=51.86&lon=4.41' -- this is important!! change the lat and lon to your needs!!
   if debug then print(url) end
read = os.execute('curl --connect-timeout 5 -s -o '..tempfilename..' "'..url..'"')   file = io.open(tempfilename, "r")

   while true do 
      line = file:read("*line")
      if not line then break end
      if debug then print('Line:'..line) end
      linetime=string.sub(tostring(line), 5, 9)
      if debug then print('Linetime: '..linetime) end

      linetime2 = os.time{year=os.date('%Y'), month=os.date('%m'), day=os.date('%d'), hour=string.sub(linetime,1,2), min=string.sub(linetime,4,5), sec=os.date('%S')}
      difference = os.difftime (linetime2,os.time())

      if ((difference > 0) and (difference<=minutesinfuture*60)) then
         if debug then print('Line in time range found') end
         rain=tonumber(string.sub(tostring(line), 0, 3))
         totalrain = totalrain+rain
         rainlines=rainlines+1
         if debug then print('Rain in timerange: '..rain) end
         if debug then print('Total rain now: '..totalrain) end
      end

   end
   file:close()
   
   averagerain=totalrain/rainlines
   return(averagerain)
end

function round(num, idp)
   local mult = 10^(idp or 0)
   return math.floor(num * mult + 0.5) / mult
end

commandArray = {}
   minuten=15
   RainPrediction = IsItGonnaRain(minuten)
   RainmmHour=10^((RainPrediction-109)/32)

   if (RainPrediction > 20  ) then
      verw = 3
      RainPredictionText=('('..round(RainmmHour, 1)..' mm) regen verwacht!')
   else 
      verw = 2
      RainPredictionText=('Voorlopig blijft het droog!')
   end
   
   commandArray[2] = {['UpdateDevice'] = RainTextIDX .. '|0|' .. tostring(RainPredictionText)}

return commandArray

At the moment the script is spewing out errors '2017-04-29 19:20:01.901 Error: EventSystem: in Regen Verwacht: [string "local RainTextIDX = 113 -- your domoticz te..."]:13: attempt to index global 'file' (a nil value)', so I stopped it for now.

[jvdz]

Looks line you have line 11 at the end of line 10... change that to:

Code: Select all

local RainTextIDX = 113   -- your domoticz text device
debug = false -- enable or disable debug output
tempfilename = '../var/packages/domoticz/scripts/lua/tmp/Rain.tmp' -- be sure this is in the correct map, and give it chmod 0666
totalrain = 0
rainlines = 0

function IsItGonnaRain( minutesinfuture )
   url='http://gpsgadget.buienradar.nl/data/raintext/?lat=51.86&lon=4.41' -- this is important!! change the lat and lon to your needs!!
   if debug then print(url) end
   read = os.execute('curl --connect-timeout 5 -s -o '..tempfilename..' "'..url..'"')   
   file = io.open(tempfilename, "r")

   while true do 
      line = file:read("*line")
      if not line then break end
      if debug then print('Line:'..line) end

Jos

[EdwinK]

Thanks. Guess I did make some error

But still there is this error:

Code: Select all

2017-04-29 21:28:00.219 Error: EventSystem: in Regen Verwacht: [string "local RainTextIDX = '113' -- your domoticz ..."]:17: 'end' expected (to close 'while' at line 13) near

Screen Shot 2017-04-30 at 17.54.09.png (17.69 KiB) Viewed 2160 times

[poudenes]

2017-04-29 20:22:00.297 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.410 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.520 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.674 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.793 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:00.906 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:01.017 EventSystem: Script event triggered: REGEN 17.04.29
2017-04-29 20:22:12.113 EventSystem: Script event triggered: REGEN 17.04.29

Can someone help me with this... the script repeats many times... lots of lines like this for triggering Buitenrader to check if its gonna rain.

[jvdz]

Is this triggered by the Event system? Internal or External files?
Internal -> Check the setting that it is Time in stead of All or Device.
External -> WHat is the script name ? something like script_time_xxx.lua?

jos

[poudenes]

I have it into Domoticz itself. with a name : regen30 17.04.29 as name (Scene year/month/day of creation or modification)