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Need Javascript help for metadata point

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  • M

    I have 1-wire DS2450 A/D numerical data available I would like to convert to binary for simple on/off notification. Can someone please give me some direction as to the proper script to do this for a metadata point?

    For example:

    If the input is <= 0.5 then output 0 binary
    If the input is >0.5 then output 1 binary

    I am not familiar with JS programming and syntax (last programming I did was 30 years ago in FORTRAN) and have tried several things with no success.

    Thanks in advance!

    0
  • M

    Hi Mike,

    Try this (assuming "x" is the var name you give the point):

    
if (x.value &lt= 0.5)
    return false;
return true;

    ... and set the meta point to be a binary. That ought to do it.

    0
  • M

    Thanks Matthew.

    I actually got it figured out by myself like this:

    if (p33.value<=0.5)
   {
return false 
   }
else 
   {
return true
    }

    I see so many different styles of coding for JavaScript on the web, I don't know what is actually required and what is personal preference. Do you know a good resource to learn more?

    Anyway if works perfectly. I continue to be amazed at the flexibility and capability of Mango! Now I just need to get my 1-wire network more stable.

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  • M

    Thanks. Re Javascript, just ask Google. There's a ton of resources around.

    0