Comp #1

//Dean Nguyen
//Comp #1

//All Defines
#define SW1 6
#define LED1 10
#define MSEC_SAMPLE 1

//States
enum {yellowLED_ON, yellowLED_OFF};

//Setting variables
boolean isSwPressed, prevIsSwPressed, isSwJustReleased, isSwJustPressed;
int state = yellowLED_OFF, prevState = !state;
boolean isNewState;

void setup() {
  pinMode(SW1, INPUT_PULLUP);
  pinMode(LED1, OUTPUT); digitalWrite(LED1, LOW);

  Serial.begin(9600);
}

void loop() {
  //Switch statements
  prevIsSwPressed = isSwPressed;
  isSwPressed = !digitalRead(SW1);
  isSwJustPressed = (isSwPressed && !prevIsSwPressed);  // switch edge detection
  isSwJustReleased = (!isSwPressed && prevIsSwPressed);

  //State statements
  isNewState = (state != prevState);
  prevState = state;

  //Switch-Case
  switch (state) {

     case yellowLED_OFF:
       //Entry Housekeeping
       if (isNewState) {
         Serial.println("led_state: yellowLED_OFF");
       }
       //State Business
       digitalWrite(LED1, LOW);
       //Exit Housekeeping
       if (isSwPressed) {
         state = yellowLED_ON;
       }
       break;

     case yellowLED_ON:
      //Entry Housekeeping
      if (isNewState) {
        Serial.println("led_state: yellowLED_ON");
      }
      //State Business
      digitalWrite(LED1, HIGH);
      //Exit Housekeeping
      if (isSwJustReleased) {
        state = yellowLED_OFF;
      }
      break;
  }
  delay(MSEC_SAMPLE);
}