Status LED function needed

Other Hardware LEDs and Multiplexing
9

i did something similar. For me it was a heartbeat led that does 1500ms of fastblink when a button is pressed.

might not be the most efficient route as i am still learning. But it works exactly as i wanted it to work.

in abridged code:

void loop(){
heartbeat(heartbeatRate); //amount of time led is on and off are equal

  if (calButton){
    heartbeatRateTemp = heartbeatRate;  //store current heartbeat timer to restore later
    heartbeatRate = .05;  // quicker flash to signal a calibration has happened
    specialFlash = true;  
    specialFlashTimer = millis();

    calButtonPressed = true;  // set variable to true to show button is pressed
    lastPress = millis();  // set lastPressed to current time for debounce purposes
  }

  // if a calibration was performed and the quicker flashes happened for 1.5 seconds
  if (specialFlash && millis() - specialFlashTimer > 1500){ 
    specialFlash = false;
    heartbeatRate = heartbeatRateTemp;
  }

  // if the calibration button is not pressed and more time has passed than the debounceTimer setting, set the variable to false
  if (!calButtonState && (millis()-lastPress) > debounceTimer) calButtonPressed = false; 

}

void heartbeat(double rate){
  // Serial.print(statLEDstate);
  // Serial.println(millis()-statTimer);

  if (millis()-statTimer >= rate*1000){  // time since last flash is greater than rate set then change state of LED
    if (statLEDstate) digitalWrite (statLED, LOW); 
    if (!statLEDstate) digitalWrite (statLED, HIGH);
    statTimer = millis(); //reset timer
    statLEDstate = !statLEDstate;  // change led state variable
  }