Arduino

Arduino Bluetooth code With Sir's apk

#include <SoftwareSerial.h>

SoftwareSerial WinHtutBT(7, 6);
int i = 0;

void setup() {
  Serial.begin(9600);
  pinMode(2,OUTPUT);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(5,OUTPUT);
  WinHtutBT.begin(9600);
  
}

void loop() {
  if (WinHtutBT.available() > 0) {
    i = WinHtutBT.read();

    Serial.println(i);
    if (i == '3') {
      digitalWrite(2,HIGH);
      digitalWrite(3,LOW);
      digitalWrite(4,HIGH);
      digitalWrite(5,LOW);
      Serial.println("Forward");
      
    }
    if (i == '4') {
      digitalWrite(3,HIGH);
      digitalWrite(2,LOW);
      digitalWrite(5,HIGH);
      digitalWrite(4,LOW);
      Serial.println("Backward");
    }
    if (i == '1') {
      digitalWrite(2,HIGH);
      digitalWrite(3,LOW);
      digitalWrite(5,HIGH);
      digitalWrite(4,HIGH);
      Serial.println("left");
    }
    if (i == '7') {
      digitalWrite(3,HIGH);
      digitalWrite(2,HIGH);
      digitalWrite(5,HIGH);
      digitalWrite(4,HIGH);
      Serial.println("stop");
    }
    if (i == '2') {
      digitalWrite(2,HIGH);
      digitalWrite(3,HIGH);
      digitalWrite(5,HIGH);
      digitalWrite(4,LOW);
      Serial.println("right");
    }
    
    

}
}