// How large is the buffer of the Serial Monitor ?
// A million characters was not possible.
//
// Forum: https://forum.arduino.cc/t/maximum-number-of-plots-in-serial-plotter-and-legends/1111159/9
// by Koepel, 6 April 2023, Public Domain
//
// Warning: Use at your own risk.
//          Only JavaScript crashed for me,
//          but you might not be so lucky.
//
// 500kbyte:
//   The simulation slows down, depending on the sketch.
// 900kbyte:
//   The screen starts to flash black and
//   then crashing the JavaScript environment 
//   of the Firefox browser.
//

char hundred[101]= 
  "0123456789"
  "0123456789"
  "0123456789"
  "0123456789"
  "0123456789"
  "0123456789"
  "0123456789"
  "0123456789"
  "0123456789"
  "0123456789";

unsigned long countThousands = 0;

void setup() 
{
  Serial.begin(2000000);        // was 115200
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() 
{
  Serial.print("============================================================\n");
  Serial.print("thousands counter = ");
  Serial.print(countThousands);
  Serial.print("\n============================================================\n");
  countThousands++;

  for(int i=0; i<10; i++)    // ten times hundred is thousand
  {
    Serial.print(hundred);
    Serial.print("\n");
  }

  digitalWrite(LED_BUILTIN, HIGH);
  delay(80);
  digitalWrite(LED_BUILTIN, LOW);
}