Check if some of the buttons was pressed while executing a "for" loop. HELP!

Using Arduino Programming Questions
10

RogerioBoscolo:

So, i just made a few adjustments to use the attachInterrupt but it still not working. =( maybe the problem still in the "delay(WAIT);"

Not maybe. It is the problem.

unsigned long startTime;  //add this line before setup()

setup(){
startTime = millis();  //add this line
}
.
.
.
void writeLED1(){
if(millis() - startTime >= WAIT){
  analogWrite(red, r);
  analogWrite(green, g);
  analogWrite(blue, b);
  startTime = millis(); //reset startTime for next iteration
  }
}