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Tomcat7194
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Joined: November 05 2006
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| Posted: November 05 2006 at 14:45 | IP Logged
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Hello, I am new to Powerhome, and I am trying to make a macro that will speak a global variable. I already set up TTS, and I installed the macro GetWeather.
Now, when I run a macro called Speak, I want the computer to say the current temperature, which is stored in the global variable CURTEMP. So far, I have it set up with the code:
ph_tts({CURTEMP})
But this does not do anything. What would be the code to get the computer to speak the global variable CURTEMP when I trigger the macro?
Thanks
Tom
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smarty
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| Posted: November 05 2006 at 15:23 | IP Logged
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Try this:
ph_tts("{CURTEMP}")
You need to add the quotes 
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Tomcat7194
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| Posted: November 05 2006 at 15:28 | IP Logged
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I tried that, but it just says " C U R T E M P", then "ZERO" rather than saying the value of {CURTEMP}
Any idea how to correct that?
Tom
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Tomcat7194
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| Posted: November 05 2006 at 15:30 | IP Logged
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Wait, I think I got it. I hadn't actually set up a Global Variable in the category in Setup. Once I added one there, it read the value.
Thanks!
Tom
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dhoward
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| Posted: November 06 2006 at 13:03 | IP Logged
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Tom,
Yep, you got it! I was just going to post to make sure you have declared the GV.
The way PowerHome works, during formula evaluation, variable substitution is performed first. PowerHome searches for all occurrences of text between {} and []. In the case of {}, it looks up in the global variable table for a matching value. If it's found, then the value of the GV is substituted for the {} and the ID between them. If the ID isnt found in the GV table, then no substitution is performed. It works the same for the System variables and the [] tags.
Anyways, glad to see you got it figured out and let me know if you have any other questions or problems.
Dave.
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Topic: Speak a Global Variable
