//----------Variables For TRANSMITTER Toggle Stage---------------//

#define OUTPUT_PIN A3
#define INPUT_PIN 6
byte lastButtonState = HIGH;
byte outputState = LOW;
unsigned long debounceDuration = 50; // millis
unsigned long lastTimeButtonStateChanged = 0;

//----------Variables For TRANSMITTER Blink Stage---------------//

const int ledPin = A2; // Define the pin where the Blink LED is connected.
int ledState = LOW;
unsigned long previousMillis = 0; // Variables to keep track of time for interval timing.
const long interval = 200;        // ""


void toggleBlink() {
  if (millis() - lastTimeButtonStateChanged > debounceDuration) {
    byte buttonState = digitalRead(INPUT_PIN);
    if (buttonState != lastButtonState) {
      lastTimeButtonStateChanged = millis();
      lastButtonState = buttonState;
      if (buttonState == LOW) {
        outputState = (outputState == HIGH) ? LOW : HIGH;
        digitalWrite(OUTPUT_PIN, outputState);
      }
    }
  }

  outputState = digitalRead(OUTPUT_PIN);  // Read the state of the output.

  if (outputState == HIGH) {   // Check if the output output is high.
    // Get the current time.
    unsigned long currentMillis = millis();

    // Check if it's time to toggle the ledState based on the interval.
    if (currentMillis - previousMillis >= interval) {
      // Save the last time the LED was toggled.
      previousMillis = currentMillis;


      if (ledState == LOW) {
        ledState = HIGH;
      } else {
        ledState = LOW;
      }


      digitalWrite(ledPin, ledState);  // Apply the new LED state.
    }
  } else {

    digitalWrite(ledPin, LOW);  // If the output is low, turn off the LED.
  }
}

void setup() {
  pinMode(OUTPUT_PIN, OUTPUT);
  pinMode(INPUT_PIN, INPUT_PULLUP);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  toggleBlink();
}