Serial.printf(format, …)
Writes to the serial port using the same format as the printf() function.
Parameters
format - character array constant. (e.g “Hello”)
… - Arguments
Returns
Number of bytes written.
Example
#include <Arduino.h>
int i = 0;
void setup() {
Serial.begin(9600);
}
void loop() {
Serial.printf("Hello World %d \n\r", i++);
delay(1000);
}Notes
- Most serial terminals require the carrier return “\r” together with the new line feed “\n” to print a new line.