Can an ATtiny print results to a console?

Question

I'm trying to port some Arduino code that I wrote for the Arduino Mega to an ATtiny and I'm having trouble figuring out how to do output. Here is what I have:

char foo;
#include <SoftwareSerial.h>
const int rx=3;
const int tx=4;

SoftwareSerial mySerial(rx,tx);

void setup() 
{ 
mySerial.begin(9600);
} 

void loop() {
 if (mySerial.available()) {
   char data = mySerial.read();
   mySerial.write(data);
 }

 mySerial.println("hello");
}

To my understanding this should print "hello" to the console over and over again but for some reason it uploads successfully but then it doesn't do anything.

Here is the programmer that I am using to connect my ATtiny to my computer: https://learn.sparkfun.com/tutorials/tiny-avr-programmer-hookup-guide/programming-in-arduino

Answer 1

You don't have any output because you don't have a serial adapter connected to the device. The programmer you have is only for programming and does not support a UART serial connection.

Answer 2

This is writing serial data to digital pin 4. If you have a serial to USB converter attached to pins 3,4 and you have a terminal attached to said serial to USB converter, it will print to that terminal.

Also, on an ATtiny, you have to check which pins are pins 3,4. They are probably not the physical pins 3,4, and it is dependent on which pin mappings you are using (dependent on ATtiny libraries).