strings.cpp

#include <Arduino.h>


void setup() {
    // put your setup code here, to run once:
    Serial.begin(115200);
}

void loop() 
{
    const char fmt[] = "i = %d, s = %s, f = %f";

    //sposob 1
    int i = 5;
    char s[] = "Hello";
    double f = 0.5;

    Serial.printf(fmt, i, s, f);

    //sposob 2
    char buffer[128];
    snprintf(buffer, sizeof(buffer), fmt, i, s, f);
    Serial.println(buffer);

    //sposob 3
    String arduinoString;

    arduinoString += String(i);
    arduinoString += " ";
    arduinoString += s;
    arduinoString += " ";
    arduinoString += String(f);

    Serial.println(arduinoString);

}