#define in an IF statement

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hi there,

trying use potentiometer change colour used in led strips, i've written not sure if should work or not? there similar use?

code: [select]
  if(val < 341){
  #define colour red
  }
  else if(val < 682 ){
  #define colour blue
  }
  else{ 
  #define colour yellow
  }
  serial.println(val);


no, won't work, preprocesor directives global, , evaluated @ compile time-
a simple variable assignment work.


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