Import temperature sensor1 One-wire

[jackrobijn]

Hello Everybody,

I am trying to read and write several One-wire sensors into dummy temp sensors.
One-wire sensors are conected to a WEBCAI board, values I can receive with HTTP request
when I use the request an output it gives me value 23.2 C (where C is for Celsius, but this is coming from the web board)
Found this script allready on this site , but needs some rewriting for me to get it working.
I am a complete nob when it comes to programming, so desperate for some help with this.

commandArray = {}
now=os.date("*t")

-- NB : every 5 minutes only, if u prefer every 2 min or even every 1 min
-- change the 5 below
if now.min % 5 == 0 then
local f = assert(io.popen("curl -s http://x.x.x.x/gett2.cgi" , 'r'))
local s = assert(f:read('*a'))
local threeZero, status, temp = s:match("|([^|]*)|([^|]*)|([^|]*)|")
if status == "OK" then
-- you can see prints in Setup/Log
print("One-Wire : read and update 1 : "..s.."=>"..temp)
commandArray["UpdateDevice"] = IDX.."|0|"..temp
else
print("One-Wire : bad status : "..s)
end
end
return commandArray

I believe the error for my case is in the line : local threeZero, status, temp = s:match("|([^|]*)|([^|]*)|([^|]*)|")
but not sure. I am only getting 23.6 C as result also when I use a curl request directly.


Any help, much appriated

Jack

[jackrobijn]

Update on my request

changest the lua script
commandArray = {}
now=os.date("*t")

-- NB : every 5 minutes only, if u prefer every 2 min or even every 1 min
-- change the 5 below
if now.min % 5 == 0 then
local f = assert(io.popen("curl -u http://X.X.X.X/gett1.cgi" , 'r'))
local s = assert(f:read('*a'))
local temp = s:match("|([^|]*)|([^|]*)|")
if status == "OK" then
-- you can see prints in Setup/Log
print("One-Wire : read and update 1 : "..s"=>"..temp)
commandArray["UpdateDevice"] = '92|0|'..temp
else
print("One-Wire : bad status : "..s)
end
end
return commandArray

Now i am seeing in the log file

2018-05-13 14:30:01.095 dzVents: One-Wire : bad status : 23.0 C

So looks like the C behind the 23.0 is still given me a problem, because that not updating the virtual sensor.
How change to the import that it's not reading the C value.

Any suggestions would be very appriciated.
Jack

[jackrobijn]

Update

I have managed to get this Lua script working

Code: Select all

commandArray = {}
now=os.date("*t")
-- NB : every 5 minutes only, if u prefer every 2 min or even every 1 min
--      change the 5 below
if now.min % 5 == 0 then
   local f = assert(io.popen("curl -u X:X http://192.168.X.X/gett1.cgi" , 'r'))
   local s = assert(f:read('*a'))
--   local temp = s:match("|([^|]*)|([^|]*)|") was not working
   local temp = s:match("|([^|]*)|")
--     take out all upercase characters of string --make str alpha-numeric because input string was 25.1 C and only need 25.1
       if(s:match("%W")) then
       s = s:gsub('%u','')
 --    you can see prints in Setup/Log to see of it is reading
       print("T1 = "..s)
--         -- sending the input s to the virtual sensor T1
--      print("T-1 : read and update 1 : "..s.. "=>"..temp)  did not work this line
      commandArray['UpdateDevice'] = '92|0|'..s
--   Now virtual sensor T1 is updated every 5 minutes
   end
end   
return commandArray

Now the next goal is to get 9 of these script together in 1 lua script, to read and write 8 temp sensor and a humidity sensor

Any suggestions ? because I am a complete beginner when it comes to programming

Script would be
Start the timer (see above in start of script)
read T1
write T1
read T2
Write T2
etc..

Any help in the right direction is much appriciated