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I recommend to use printf if you don't need float support in printf. This code produces a little smaller compiled code then the one in Majenko's answer and has the full power of the printf except of float.

#include <StreamLib.h>

void setup() {
    Serial.begin(115200);
    char btnPressed = 1;
    float flt = 3.141592653;

    byte b;
    BufferedPrint bp(Serial, &b, 1);

    if (btnPressed) {
        bp.printf("%c: %s %i %s", 'Q', "BtnPressed: ", btnPressed, " done ");
        bp.println(flt, 4);
    }
}

void loop() {
}

With StreamLib you can of course print float with normal single print function for floats, the same as for Serial or network Client, with second parameter for the number of decimal places.

I recommend to use printf if you don't need float support in printf. This code produces a little smaller compiled code then the one in Majenko's answer and has the full power of the printf except of float.

#include <StreamLib.h>

void setup() {
    Serial.begin(115200);
    char btnPressed = 1;
    float flt = 3.141592653;

    byte b;
    BufferedPrint bp(Serial, &b, 1);

    if (btnPressed) {
        bp.printf("%c: %s %i %s", 'Q', "BtnPressed: ", btnPressed, " done ");
        bp.println(flt, 4);
    }
}

void loop() {
}

With StreamLib you can of course print float with normal single print function for floats, the same as for Serial or network Client, with second parameter for the number of decimal places.

If you want to create a formatted C-string you can use the CStringBuilder of the StreamLib. It too builds the string with print functions and has 'printf' too.

I recommend to use printf if you don't need float support. This code produces a little smaller compiled code then the one in Majenko's answer and has the full power of the printf except of float.

#include <StreamLib.h>

void setup() {
    Serial.begin(115200);
    char btnPressed = 1;

    byte b;
    BufferedPrint bp(Serial, &b, 1);

    if (btnPressed) {
        bp.printf("%c: %s %i %s", 'Q', "BtnPressed: ", btnPressed, " done ");
    }
}

void loop() {
}

I recommend to use printf if you don't need float support in printf. This code produces a little smaller compiled code then the one in Majenko's answer and has the full power of the printf except of float.

#include <StreamLib.h>

void setup() {
    Serial.begin(115200);
    char btnPressed = 1;
    float flt = 3.141592653;

    byte b;
    BufferedPrint bp(Serial, &b, 1);

    if (btnPressed) {
        bp.printf("%c: %s %i %s", 'Q', "BtnPressed: ", btnPressed, " done ");
        bp.println(flt, 4);
    }
}

void loop() {
}

With StreamLib you can of course print float with normal single print function for floats, the same as for Serial or network Client, with second parameter for the number of decimal places.

I recommend to use printf if you don't need float support. This code produces a little smaller compiled code then the one in Majenko's answer.

#include <StreamLib.h>

void setup() {
    Serial.begin(115200);
    char btnPressed = 1;

    byte b;
    BufferedPrint bp(Serial, &b, 1);

    if (btnPressed) {
        bp.printf("%c: %s %i %s", 'Q', "BtnPressed: ", btnPressed, " done ");
    }
}

void loop() {
}

I recommend to use printf if you don't need float support. This code produces a little smaller compiled code then the one in Majenko's answer and has the full power of the printf except of float.

#include <StreamLib.h>

void setup() {
    Serial.begin(115200);
    char btnPressed = 1;

    byte b;
    BufferedPrint bp(Serial, &b, 1);

    if (btnPressed) {
        bp.printf("%c: %s %i %s", 'Q', "BtnPressed: ", btnPressed, " done ");
    }
}

void loop() {
}