command choice help

computon

I am writing a Basic Stamp program where I need to know the value
on a pin. In some cases, I use rctime, when I have a range of possible
values. However, what do I use for the simpler case, when I just need
a "yes" or "no"--if the circuit is complete, I want a 1 ("yes"), and if it's
incomplete, I want a 0 ("no"). Can I use rctime for this, too? I do not
want to use resistors and capacitors for these circuits.

Thanks.

Jon Williams

Your case is the easiest of pin status -- high or low.· Connect this circuit:




Then run this little demo:

' {$STAMP BS2} 
' {$PBASIC 2.5} 

Status    PIN    0 

IsOn      CON    1 
IsOff     CON    0 

Main: 
  IF (Status = IsOn) THEN 
    DEBUG HOME, "System Status: On " 
  ELSE 
    DEBUG HOME, "System Status: Off" 
  ENDIF 
  GOTO Main

Note how using PIN and CON definitions make the program very easy to understand and maintain.

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Jon Williams
Applications Engineer, Parallax
Dallas, TX· USA