//https://vt100.net/docs/vt100-ug/chapter3.html


char vt100erase[] = "\e[2J";
char sh[] = {'\e', '[', '1', '0', ';', '0'};
char sr[] = {'\e', '[', 0xa, ';', 0x03};
char sd[] = {'\e', '[', '1', '1', ';', '8'};

#define ESC '\e'


void setup() {

  Serial.begin(9600);
  while (!Serial) ;
  Serial.print(vt100erase);
}

void vt100home()
{
  Serial.print("\e[H");
}

void vt100setcursor(char x, char y)
{
  Serial.print("\e[");
  Serial.print(x+'0');
  Serial.print(";5H");
   
}

int i = 0;
void loop() {

  vt100setcursor(3, (char)i);
  Serial.print(i);
  i++;
  delay(1000);


  if (20 < i )
    i = 0;
  // put your main code here, to run repeatedly:

}