Code that worked in Uno is not working in Mega 2560

Question

I send data with Android and read it from the Arduino serial screen. When I use UNO, I can read the data smoothly. When I use MEGA, it uploads the code without error, but does not transfer data on the serial screen. Can you tell me why?

#include <SoftwareSerial.h>
SoftwareSerial bluetooth(2,3); // TX,RX 
int bar_analog=0; 
int head_analog=0;
int bar_anim=0;
int strip_anim=0;
int motor_speed=1;
int direct=0;
int level=0;
boolean debug = true;
void setup() {
 Serial.begin(9600); 
 bluetooth.begin(9600); 
 Serial.println("Program is starting..."); 
 Serial.println("by Berke Ogulcan Parlak"); 
}
void loop() {
 if (bluetooth.available()) {
 while (bluetooth.available()) 
 { 
 bar_analog = bluetooth.parseInt(); 
 head_analog = bluetooth.parseInt();
 bar_anim = bluetooth.parseInt();
 strip_anim = bluetooth.parseInt();
 motor_speed = bluetooth.parseInt();
 direct = bluetooth.parseInt();
 level = bluetooth.parseInt();
 if (debug) { 
 Serial.print("Bar Brightness: "); 
 Serial.println(bar_analog);
 Serial.print("Bar Animation Type: ");
 Serial.println(bar_anim);
 Serial.print("Headlight Brightness: ");
 Serial.println(head_analog);
 Serial.print("Strip Animation Type: ");
 Serial.println(strip_anim);
 Serial.print("Motor Speed Level: ");
 Serial.println(motor_speed);
 Serial.print("Direction: ");
 Serial.println(direct);
 Serial.print("Mast Goes: ");
 Serial.println(level);
 Serial.println("--------------------------------");
 }
 if (bluetooth.read() == '\n') {
 azdırma işlemleri bu satırda yapılacak..
 }
 }
 }
}

Answer 1

SoftwareSerial relies on the Pin Change interrupt. Not all pins on the Mega have pin change interrupts.

But that is all a moot point really, because when you're using a microcontroller that has lots of real hardware UARTs there is no call to be using SoftwareSerial in any case.