How to Make a Smart RC Car with Steering Wheel Remote

1#include<Wire.h>
2long accelx,accely,accelz; // define accelerometer  variables
3float gforcex,gforcey,gforcez;
4int irsensorbackward=A0; 
5 //  same for backward direction
6int pin13=12; // pin13,pin12,pin11,pin10 these pins  are the data pin of ht12e ic 
7int pin12=10;
8int pin11=8;
9int pin10=7;
10int  value; // this takes the analog reading of irsensorbackward 
11
12void setup()
13{
14  Serial.begin(9600);
15  Wire.begin(); // initialising
16  
17  pinMode(irsensorbackward,INPUT);
18  pinMode(pin13,OUTPUT);
19  pinMode(pin12,OUTPUT);
20  pinMode(pin11,OUTPUT);
21  pinMode(pin10,OUTPUT);
22  
23  setupmpu(); // call the function
24}
25void  loop()
26{
27    value=analogRead(irsensorbackward);
28 accelregistervalue();
29  
30  
31Serial.println(value); 
32 
33  // reading from gforcey variable only
34  if(value > 255)
35  {
36     if(gforcey>-0.39 || gforcey<0.39)
37       {
38    digitalWrite(pin13,LOW);  // the car will move in the forward direction
39    digitalWrite(pin12,HIGH);
40    digitalWrite(pin11,LOW);
41    digitalWrite(pin10,HIGH);
42       }
43      if(gforcey<-0.40) // if the condition will true then the car will  move in the left side
44        {
45           digitalWrite(pin13,LOW);
46           digitalWrite(pin12,HIGH);
47           digitalWrite(pin11,HIGH);
48           digitalWrite(pin10,HIGH);
49         }
50      if(gforcey>0.40) // if this condition will true then the car  will turn right
51        {
52   
53     digitalWrite(pin13,HIGH);
54    digitalWrite(pin12,HIGH);
55    digitalWrite(pin11,LOW);
56    digitalWrite(pin10,HIGH);
57        }
58 }
59
60  if(value<255) // all motors are off mode
61   {
62    
63        digitalWrite(pin13,HIGH);
64        digitalWrite(pin12,HIGH);
65        digitalWrite(pin11,HIGH);
66        digitalWrite(pin10,HIGH);
67      
68   }
69}
70void setupmpu()
71{
72  Wire.beginTransmission(0b1101000);  // send slave address
73  Wire.write(0x6B); // 6B regidter which i want to access
74  Wire.write(0b00000000); // set all bits of these register are 0
75  Wire.endTransmission();
76  
77  // accelerometer configuration
78  Wire.beginTransmission(0b1101000);
79  Wire.write(0x1c);
80  Wire.write(0b00000000);
81  Wire.endTransmission();
82}
83void  accelregistervalue()
84{
85    Wire.beginTransmission(0b1101000);
86  Wire.write(0x3B);
87  Wire.endTransmission();
88  Wire.requestFrom(0b1101000,6);
89  while(Wire.available()<6);
90  accelx=Wire.read()<<8| Wire.read();
91  accely=Wire.read()<<8 | Wire.read();
92  accelz=Wire.read()<<8 | Wire.read();
93  gforcex=accelx/16384.0;
94  gforcey=accely/16384.0;
95  gforcez=accelz/16384.0;
96}
97
98