4 Wheeled Bluetooth Controlled Rc Car

1#include <SoftwareSerial.h>
2char t;
3 
4void setup() {
5pinMode(12,OUTPUT);   //left motors forward
6pinMode(11,OUTPUT);   //left motors reverse
7pinMode(10,OUTPUT);   //right motors forward
8pinMode(9,OUTPUT);   //right motors reverse
9SoftwareSerial  mySerial(0, 1); // RX, TX
10Serial.begin(9600);
11 
12}
13 
14void loop() {
15if(Serial.available()){
16  t = Serial.read();
17  Serial.println(t);
18}
19 
20if(t == 'F'){            //move  forward(all motors rotate in forward direction)
21  digitalWrite(12,HIGH);
22  digitalWrite(10,HIGH);
23}
24 
25else if(t == 'B'){      //move reverse (all  motors rotate in reverse direction)
26  digitalWrite(11,HIGH);
27  digitalWrite(9,HIGH);
28}
29  
30else if(t == 'L'){      //turn right (left side motors rotate in forward direction,  right side motors doesn't rotate)
31  digitalWrite(10,HIGH);
32}
33 
34else  if(t == 'R'){      //turn left (right side motors rotate in forward direction, left  side motors doesn't rotate)
35  digitalWrite(12,HIGH);
36}
37 
38else if(t ==  'S'){      //STOP (all motors stop)
39  digitalWrite(12,LOW);
40  digitalWrite(11,LOW);
41  digitalWrite(10,LOW);
42  digitalWrite(9,LOW);
43}
44delay(1);
45}
46

1#include <SoftwareSerial.h>
2char t;
3 
4void setup() {
5pinMode(12,OUTPUT);
6   //left motors forward
7pinMode(11,OUTPUT);   //left motors reverse
8pinMode(10,OUTPUT);
9   //right motors forward
10pinMode(9,OUTPUT);   //right motors reverse
11SoftwareSerial
12  mySerial(0, 1); // RX, TX
13Serial.begin(9600);
14 
15}
16 
17void loop() {
18if(Serial.available()){
19
20  t = Serial.read();
21  Serial.println(t);
22}
23 
24if(t == 'F'){            //move
25  forward(all motors rotate in forward direction)
26  digitalWrite(12,HIGH);
27
28  digitalWrite(10,HIGH);
29}
30 
31else if(t == 'B'){      //move reverse (all
32  motors rotate in reverse direction)
33  digitalWrite(11,HIGH);
34  digitalWrite(9,HIGH);
35}
36
37  
38else if(t == 'L'){      //turn right (left side motors rotate in forward direction,
39  right side motors doesn't rotate)
40  digitalWrite(10,HIGH);
41}
42 
43else
44  if(t == 'R'){      //turn left (right side motors rotate in forward direction, left
45  side motors doesn't rotate)
46  digitalWrite(12,HIGH);
47}
48 
49else if(t ==
50  'S'){      //STOP (all motors stop)
51  digitalWrite(12,LOW);
52  digitalWrite(11,LOW);
53
54  digitalWrite(10,LOW);
55  digitalWrite(9,LOW);
56}
57delay(1);
58}
59