How to use Serial.parseInt

Using Arduino Programming Questions
1

when I input

16 17 18 19 20 21 22 23 24 25

there arent react.why?

int buf[500];
int inChar;
boolean stringComplete = false;
int i=0,k,h;

void setup()
{
  Serial.begin(115200);
  Serial.println("Please input");
}

void loop() {
  while(Serial.available()>0) 
  {
    inChar = Serial.parseInt();
    
    if(inChar == '\n') {
      stringComplete = true;
    }
    else if(i<500){
      buf[i++] = inChar;
    }
  }


   if(stringComplete)
  {
    stringComplete = false;
    for(k=0;k<30;k++){
      Serial.print("=");
    }
    Serial.println();
    Serial.print("Length of input data : ");
    Serial.print(i);
    Serial.println(" integers");
    for(k=0;k<i;k++){
      Serial.print(buf[k]);
      Serial.print(" ");
    }
    Serial.println();
    Serial.println("Please input");
    i = 0;
    h = 0;
  }
}
2 
    inChar = Serial.parseInt();
   
    if(inChar == '\n') {
      stringComplete = true;

You are reading in a number (skipping any spaces before it) and then checking to see if the number is '\n'. A newline character is 10 (0x0A)and your numbers start at 16 and go up from there. Try typing " 10 " at the end of the line.

3

A read of Robin's Serial Input Basics - updated might give you some ideas how to implement serial communication.

4

sadmouse:
when I input there arent react.why?

I understand that you have entered this series of characters: 16 17 18 19 20 21 22 23 24 25 (there is a single space between pair of characters) from the InputBox of the Serial Monitor (SM) of Fig-1 and then you have clicked on the Send Button of SM. I would also like to understand that you have selected the Newline option in the Line ending tab of SM.

Now, tell us what do you want to see on the OutputBox of Serial Monitor of Fig-1.
SerialMonitor.png

SerialMonitor.png

5

The problem has been resolved thank you all for help

6