// Does the Serial Monitor work in the Arduino Uno as documented ?
// Answer: Yes
//
// https://docs.wokwi.com/guides/serial-monitor
//
//
// In diagram.json is a section for the Serial Monitor.
// Using "always", turns it always on.
// Pin 0 and 1 are automatically connected to TX and RX.
//
// This project: https://wokwi.com/projects/424176849827515393
// See also the text with Mega: https://wokwi.com/projects/424176908696674305

unsigned long count;

void setup() 
{
  Serial.begin(115200);
  Serial.println("Hello Uno");
}

void loop() 
{
  Serial.print(count++);
  Serial.print(" ");
  if(Serial.available() > 0)
  {
    Serial.println();
    while(Serial.available() > 0)
    {
      int inChar = Serial.read();
      if(isprint(inChar))
        Serial.write(inChar);
    }
    Serial.println();
  }
  delay(1000);
}