Code help

Comments

• Vaati Posts: 712

  2009-06-01 13:56 edited 2009-06-01 13:56

  So... It just continuously says, "Temperature out of range. Enter a different one." after you enter a temp that is out of range, or what.... ?
  
  Thanks.
  
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• MichelB Posts: 154

  2009-06-01 15:56 edited 2009-06-01 15:56

  Even with a temperature out of range program continues, how to ask to enter a temperature in the range before the program continues?
• Jessica Uelmen Posts: 490

  2009-06-01 16:42 edited 2009-06-01 16:42

  Hi MichelB,
  
  The program continues because you don't tell it to return to the beginning of the program. So even though it will tell you the number is out of range, it is programmed to continue through the code. One solution would be to use subroutines, for example:
  
  

  Main:
  DO
    DEBUG CLS, "Enter temperature in degrees C (Min 18, Max 32)", CR
    DEBUGIN DEC degrees
    [b]GOSUB get_constant[/b]                               [i]' Program continues[/i]
  LOOP
  
  [b]get_constant:[/b]                                       [i]' Subroutine heading[/i]
  SELECT degrees
    CASE 18
    CmConstant = 2243
    [b]GOSUB display_distance[/b]                           [i]' Program continues, add to each case statement[/i]
  
    ...
  
    DEBUG CR, "Temperature out of range.", CR,
              "Enter a different one."
    [b]RETURN[/b]                                             [i]' Returns to Main to get another temperature value[/i]
  
    ...
  
    [b]display_distance:[/b]
    [i]Rest of code continues here[/i]
  
  
  

  
  
  
  Putting the main routine in a DO...LOOP ensures that the code will get another value each time the program receives a value that is out of the range of temperatures. Then, when the program receives a temperature that's in range, it continues to the "display_distance" subroutine (you can re-name them whatever you like) to get readings from the PING.
  
  For more information on subroutines, look up "GOSUB" in the BASIC Stamp Syntax and Reference Manual.
  
  Hope this helps!
  
  Jessica
  
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  Jessica Uelmen
  Education Department
  Parallax, Inc.
  
  Post Edited (Jessica Uelmen (Parallax)) : 6/1/2009 4:50:26 PM GMT
• MichelB Posts: 154

  2009-06-01 16:55 edited 2009-06-01 16:55

  Thank you very much Jessica.