Question

How do I convert an int, n, to a string so that when I send it over the serial, it is sent as a string?

This is what I have so far:

int ledPin=13;
int testerPin=8;
int n=1;

char buf[10];

void setup()
{
    pinMode(ledPin, OUTPUT);
    pinMode(testerPin, OUTPUT);
    Serial.begin(115200);
}

void loop()
{
    digitalWrite(ledPin, HIGH);
    sprintf(buf, "Hello!%d", n);
    Serial.println(buf);
    delay(500);
    digitalWrite(ledPin, LOW);
    delay(500);

    n++;
}

Answer 1

Use like this:

String myString = String(n);

You can find more examples here.