//#include <WiFi.h>

const int ledPin = 13; // Built-in LED on the R4 board
unsigned long startTime;
int primeCount = 0;

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  startTime = millis();
}

void loop() {
  for (int num = 2; num <= 10000; ++num) {
    if (isPrime(num)) {
      primeCount++;
      Serial.print(num);
      Serial.print(" ");
      if (primeCount % 30 == 0) {
        Serial.println();
      }
      digitalWrite(ledPin, HIGH); // Turn on the LED
      delay(100); // LED on time (adjust as needed)
      digitalWrite(ledPin, LOW); // Turn off the LED
    }
  }
  unsigned long endTime = millis();
  unsigned long elapsedTime = endTime - startTime;
  unsigned long minutes = elapsedTime / 60000;
  unsigned long seconds = (elapsedTime % 60000) / 1000;
  Serial.print("\nPrimes found: ");
  Serial.println(primeCount);
  Serial.print("Time taken: ");
  Serial.print(minutes);
  Serial.print(" minutes ");
  Serial.print(seconds);
  Serial.println(" seconds");
  plotPrimes(); // Call the function to plot primes
  while (true) {} // Loop indefinitely after completion
}

bool isPrime(int n) {
  if (n <= 1) return false;
  for (int i = 2; i * i <= n; ++i) {
    if (n % i == 0) return false;
  }
  return true;
}

void plotPrimes() {
  // Implement your code here to plot primes in the serial plotter
  // You can use the Serial.println() function to send data for plotting
  // Example: Serial.println(primeCount);
}