Help with "until" loop

Projects Programming
27

@ato_arduino I can't test this from under the umbrella, but this is what might work. It is @gcjr's Flush timer machine, conditioned upon the ATOsolenoid:

// start or continue hourly 20 second flushing

  if (digitalRead(ATOsolenoid) == HIGH) {


    switch (state) {
    case Idle:
        if (msec - msec0 >= MsecIdle)    {
            msec0 = msec;
            state = Flush;
            digitalWrite(FlushSolenoid, HIGH);  //Switch Solenoid ON
        }
        break;
    case Flush:
        if (msec - msec0 >= MsecFlush )  {
            msec0 = msec;
            state = Idle;
            digitalWrite(FlushSolenoid, LOW);   //Switch Solenoid OFF
        }
        break;
    }


  }
  else {  // ATOsolenoid is LOW here, amIRight?

// kill the flush and reset waiting for ATOsolenoid pin to go HIGH again
    state = Idle;
    digitalWrite(FlushSolenoid, LOW);   //Switch Solenoid OFF

  }

BTW I've been noticing these lines of code: 
  digitalRead(lowEye);
  digitalRead(highEye);
  digitalRead(ATOsolenoid);

Totally correct code that does… nothing. They read a pin, and then fail to do anything with the value that got read. It may well be the compiler just tosses them overboard.

HTH

OK, I can already see that the "kill and reset" logic may be flawed, I'll see if anyone has fixed it before I get to the lab.

a7