joins two codes and alternates between them with a button

Other Hardware Robotics
1

hello I have a question, I do not know how to switch between programs with a button, what one does is evade objects autonomously and the other controls it through bluetooth

autonomous robot

#include <Servo.h>          //Servo motor library. This is standard library
#include <NewPing.h>        //Ultrasonic sensor function library. You must install this library

//our L298N control pins
const int LeftMotorForward = 7;
const int LeftMotorBackward = 6;
const int RightMotorForward = 4;
const int RightMotorBackward = 5;

//sensor pins
#define trig_pin A1 //analog input 1
#define echo_pin A2 //analog input 2

#define maximum_distance 200
boolean goesForward = false;
int distance = 100;

NewPing sonar(trig_pin, echo_pin, maximum_distance); //sensor function
Servo servo_motor; //our servo name


void setup(){

  pinMode(RightMotorForward, OUTPUT);
  pinMode(LeftMotorForward, OUTPUT);
  pinMode(LeftMotorBackward, OUTPUT);
  pinMode(RightMotorBackward, OUTPUT);
  
  servo_motor.attach(10); //our servo pin

  servo_motor.write(115);
  delay(2000);
  distance = readPing();
  delay(100);
  distance = readPing();
  delay(100);
  distance = readPing();
  delay(100);
  distance = readPing();
  delay(100);
}

void loop(){

  int distanceRight = 0;
  int distanceLeft = 0;
  delay(50);

  if (distance <= 20){
    moveStop();
    delay(300);
    moveBackward();
    delay(400);
    moveStop();
    delay(300);
    distanceRight = lookRight();
    delay(300);
    distanceLeft = lookLeft();
    delay(300);

    if (distance >= distanceLeft){
      turnRight();
      moveStop();
    }
    else{
      turnLeft();
      moveStop();
    }
  }
  else{
    moveForward(); 
  }
    distance = readPing();
}

int lookRight(){  
  servo_motor.write(50);
  delay(500);
  int distance = readPing();
  delay(100);
  servo_motor.write(115);
  return distance;
}

int lookLeft(){
  servo_motor.write(170);
  delay(500);
  int distance = readPing();
  delay(100);
  servo_motor.write(115);
  return distance;
  delay(100);
}

int readPing(){
  delay(70);
  int cm = sonar.ping_cm();
  if (cm==0){
    cm=250;
  }
  return cm;
}

void moveStop(){
  
  digitalWrite(RightMotorForward, LOW);
  digitalWrite(LeftMotorForward, LOW);
  digitalWrite(RightMotorBackward, LOW);
  digitalWrite(LeftMotorBackward, LOW);
}

void moveForward(){

  if(!goesForward){

    goesForward=true;
    
    digitalWrite(LeftMotorForward, HIGH);
    digitalWrite(RightMotorForward, HIGH);
  
    digitalWrite(LeftMotorBackward, LOW);
    digitalWrite(RightMotorBackward, LOW); 
  }
}

void moveBackward(){

  goesForward=false;

  digitalWrite(LeftMotorBackward, HIGH);
  digitalWrite(RightMotorBackward, HIGH);
  
  digitalWrite(LeftMotorForward, LOW);
  digitalWrite(RightMotorForward, LOW);
  
}

void turnRight(){

  digitalWrite(LeftMotorForward, HIGH);
  digitalWrite(RightMotorBackward, HIGH);
  
  digitalWrite(LeftMotorBackward, LOW);
  digitalWrite(RightMotorForward, LOW);
  
  delay(500);
  
  digitalWrite(LeftMotorForward, HIGH);
  digitalWrite(RightMotorForward, HIGH);
  
  digitalWrite(LeftMotorBackward, LOW);
  digitalWrite(RightMotorBackward, LOW);
 
  
  
}

void turnLeft(){

  digitalWrite(LeftMotorBackward, HIGH);
  digitalWrite(RightMotorForward, HIGH);
  
  digitalWrite(LeftMotorForward, LOW);
  digitalWrite(RightMotorBackward, LOW);

  delay(500);
  
  digitalWrite(LeftMotorForward, HIGH);
  digitalWrite(RightMotorForward, HIGH);
  
  digitalWrite(LeftMotorBackward, LOW);
  digitalWrite(RightMotorBackward, LOW);
}

control by bluetooth

#include <NewPing.h>


//pines de los sensores
#define trig_pin A1 
#define echo_pin A2 

#define maximum_distance 200
boolean goesForward = false;
int distance = 100;

NewPing sonar(trig_pin, echo_pin, maximum_distance); //funciones de los sensores

char getstr;
const int LeftMotorForward = 7;  //Declarar los pines del del motor LN1
const int LeftMotorBackward = 6;  //LN2
const int RightMotorForward = 4;  //LN3
const int RightMotorBackward = 5; //LN4

void _mForward() //Adelante
{ 
  
  digitalWrite(LeftMotorForward, HIGH);
    digitalWrite(RightMotorForward, HIGH);
  
    digitalWrite(LeftMotorBackward, LOW);
    digitalWrite(RightMotorBackward, LOW);
  Serial.println("go forward!");
}
void _mBack() //Atras
{
  
  digitalWrite(LeftMotorBackward, HIGH);
  digitalWrite(RightMotorBackward, HIGH);
  
  digitalWrite(LeftMotorForward, LOW);
  digitalWrite(RightMotorForward, LOW);
  Serial.println("go back!");
}
void _mleft() //Izquierda
{
  
  digitalWrite(LeftMotorBackward, LOW); 
  digitalWrite(RightMotorForward, HIGH);
  
  digitalWrite(LeftMotorForward, LOW);
  digitalWrite(RightMotorBackward, LOW);
  
  Serial.println("go left!");
}
void _mright() //Derecha
{
  
  digitalWrite(LeftMotorForward, HIGH);
  digitalWrite(RightMotorBackward, LOW); 
  
  digitalWrite(LeftMotorBackward, LOW);
  digitalWrite(RightMotorForward, LOW);
  
  
}
void _mStop() //Detener
{
  digitalWrite(RightMotorForward, LOW);
  digitalWrite(LeftMotorForward, LOW);
  digitalWrite(RightMotorBackward, LOW);
  digitalWrite(LeftMotorBackward, LOW);
  Serial.println("Stop!");
}

void setup()
{ 
  
  Serial.begin(9600); //Declarar los pines de salida
  pinMode(RightMotorForward, OUTPUT);
  pinMode(LeftMotorForward, OUTPUT);
  pinMode(LeftMotorBackward, OUTPUT);
  pinMode(RightMotorBackward, OUTPUT);
  
  distance = readPing();
  delay(100);
}
void loop()
  { 
  int distanceRight = 0;
  int distanceLeft = 0;
  delay(50);

  if (distance <= 20){ //Si la distancia es menor o igual a 20 cm
    _mStop(); //Detente
    delay(300);
    _mBack(); //Regresa
    delay(400);
    _mStop(); //Detente
    delay(300);
  }

   else{ 
  getstr=Serial.read();
 if(getstr=='F')
  {
    _mForward();
  }
  else if(getstr=='B')
  {
    _mBack();
    delay(200);
  }
  else if(getstr=='R')// according to my robot. otherwise L
  {
    _mleft();
    delay(200);
  }
  else if(getstr=='L') // according to my robot. otherwise R
  {
    _mright();
    delay(200);
  }
  else if(getstr=='X')
  {
     _mStop();     
  }
   }
   distance = readPing();
}
int readPing(){
  delay(70);
  int cm = sonar.ping_cm();
  if (cm==0){
    cm=250;
  }
  return cm;
}
2

The usual process for developing a new program is to start with a set of requirements. What are yours?

You will have some state - auto-avoidance or user-(mis)controlled. What will cause a change from one state to the other?

Once you know that, writing the loop() function to call either autoAvoid() or userControl() on each iteration, after determining if a change is needed, is trivial. Writing the functions to be non-blocking isn't that difficult.