Raunak OberaiHarsh ShuklaRishabh Jain
Published © MIT

Race Car Dashboard (Online Connectivity)

The project was initially designed to acquire real-time race car data for BAJA-SAE competitions.

IntermediateShowcase (no instructions)Over 2 days34,761
Race Car Dashboard (Online Connectivity)

Things used in this project

Hardware components

NodeMCU ESP8266 Breakout Board
NodeMCU ESP8266 Breakout Board
×1
GPS receiver (generic)
×1
Arduino Mega 2560 & Genuino Mega 2560
Arduino Mega 2560 & Genuino Mega 2560
×1
3.2" TFT Display
×1
Metal Push Button
×1

Software apps and online services

Google Sheets
Google Sheets
Pushingbox
Google Fusion Table

Story

Read more

Schematics

Schematic Diagram

Code

Dashboard

Arduino
#include<SD.h>
#include<SPI.h>
#include <TFT_HX8357.h>                  // Hardware-specific library For 3.2" LCD
#include <TinyGPS.h>                     //Library for GPS


TFT_HX8357 tft = TFT_HX8357();           // Invoke custom library for LCD


#define BU_BMP 1     // Temporarily flip the TFT coords for standard Bottom-Up bit maps
#define TD_BMP 0     // Draw inverted Top-Down bitmaps in standard coord frame



//Colors Defined

#define LTBLUE    0xB6DF
#define LTTEAL    0xBF5F
#define LTGREEN   0xBFF7
#define LTCYAN    0xC7FF
#define LTRED     0xFD34
#define LTMAGENTA 0xFD5F
#define LTYELLOW  0xFFF8
#define LTORANGE  0xFE73
#define LTPINK    0xFDDF
#define LTPURPLE  0xCCFF
#define LTGREY    0xE71C

#define BLUE      0x001F
#define TEAL      0x0438
#define GREEN     0x07E0
#define CYAN      0x07FF
#define RED       0xF800
#define MAGENTA   0xF81F
#define YELLOW    0xFFE0
#define ORANGE    0xFC00
#define PINK      0xF81F
#define PURPLE    0x8010
#define GREY      0xC618
#define WHITE     0xFFFF
#define BLACK     0x0000

#define DKBLUE    0x000D
#define DKTEAL    0x020C
#define DKGREEN   0x03E0
#define DKCYAN    0x03EF
#define DKRED     0x6000
#define DKMAGENTA 0x8008
#define DKYELLOW  0x8400
#define DKORANGE  0x8200
#define DKPINK    0x9009
#define DKPURPLE  0x4010
#define DKGREY    0x4A49



//WIFI VARIABLES

#define DST_HOST "213.186.33.19"       //IP Address (Pushingbox)
String devid="vAFCC5109D44ADC6";       //Device Id



//GPS VARIABLES

TinyGPS gps;
float   lat;                //Latitude
float   lon;                //Longitude
float   gps_speed;
float   gps_speedold=0;
String  gps_clock;
int     year;
byte    month, day, hour, minute, second, hundredths;
unsigned long age;



//Lap Counter Variables

int   lap=0;
int   lap_flag=0;
int   lap_initialize=0;
int   lap_first=0;
float lat_initial;
float lon_initial;
float lat_old;
float lon_old;


//Distance Variables

float distance=0;
float lap_distance=0;
float lap_reset=0;
float per_distance=0;
float avg_distance=0;
float avg_speed=0;
float lapspeed_average=0;
unsigned long lap_start=0;
unsigned long time_old=0;;
unsigned long server_update=0;
unsigned long disp=0;


//SD Variables

File Jat;
int sd_check=1;
String sd_data;

//Button Variable

int button=13;
int but_state=0;
int sel=1;

void setup() 

{

    tft.init();                                //Initialize LCD
    tft.fillScreen(TFT_BLACK);
    
    pinMode(12,INPUT);
            
  while(digitalRead(12)==0) 
  {
    delay(1000);
  }
  
  
  SD.begin(53);
  

  Serial1.begin(9600);                      //Begins GPS Communication

  lcd_setup();

  bootup();
 
  time_old=millis();

  but_state=digitalRead(12);
 
 
 }

void loop() 
{


  gps_function();

  print_date(gps);
 
  lap_counter();
 
  distance_function();
 
  data_log();
  
  if(digitalRead(12)!=but_state)
   {
    
     but_state=digitalRead(12);
  
     if(sel==4)
      { 
       sel=1;
     }
      
     else
     { 
      sel++;
     }
     
   } 

    switch(sel)
     {
    
      case 1 :
             prints();
             break;

      case 2 :
             print_speed();
             break;
           
      case 3 :
             print_time();
             break;
           
      case 4 :
            print_dis();
            break;
     }

   
  
  if(millis()-server_update>14000)
  {
    delay(200);
    google();
    server_update=millis();
    
  }

  delay(600);
  
}

void lcd_setup()

{
    
    //The syste begins by loading an image/logo in bitmap format
    
    tft.setRotation(1);
    tft.fillScreen(TFT_WHITE);
    tft.setTextSize(1);
    tft.setTextFont(4);
    tft.setTextColor(0x0000); 
    tft.setCursor (190, 60);
    drawBMP("untitled.bmp", 90, 20, BU_BMP);                             //Change untitled to any bitmap image name you wish to use
    delay(3000);
    tft.setRotation(1);
    tft.fillScreen(0x07FF);
    tft.print("WELCOME"); 
    tft.setTextSize(2); 
    tft.setCursor (149,135);        
    tft.print("JATAYU");
    tft.setTextSize(1);
    tft.setCursor (135, 235);        
    tft.print("Thrive Till The End !");
    
    delay(3000);

}

void bootup()

{
    tft.fillScreen(TFT_BLACK);
    tft.setTextSize(1);
    tft.setTextFont(4);
    tft.setTextColor(TFT_WHITE); 
    tft.setCursor(150,20);
    tft.print("BOOTING UP..");
    tft.setCursor(100,95);
    tft.print("SD");
    tft.setCursor(100,180);
    tft.print("WIFI");
    tft.setCursor(100,260);
    tft.print("GPS");

    sd_setup();
    wifi_setup();
    gps_setup();

    delay(2000);

} 

void sd_setup()

{
 
 Jat=SD.open("MAIT.csv",FILE_WRITE);

 if(Jat)
   {
    tft.setCursor(250,95);
    Jat.print(" Time, Latitude, Longitude, Lap, Lap Length(Km), Distance(Km), Lap Travel(Km), Speed(Km/hr), Average Lap Speed(Km/hr)");
    tft.print("Okay");
    Jat.close();
   }
   
 else
   {
    tft.setCursor(250,95);
    tft.print("Error");
   }

}

void wifi_setup()
{
  
  Serial2.begin(115200);
 
  String ssid ="MBLAZE-EC315-EFC8";

   String password="80C77D93";

   Serial2.println("AT+RST");              //To Reset Module
     
   
  if(Serial2.find("CONNECTED"))
    
    {
    }

    
   else;
    
  delay(4000);
   
  String cmd ="AT+CWJAP=\"" + ssid + "\",\"" + password + "\"";
     
 Serial2.println(cmd);                   //To Setup wifi

   
  if(Serial2.find("CONNECTED"))
    
    {
    
      tft.setCursor(250,180);
      tft.print("Okay");
   
    }

    
   else
    {
    
      tft.setCursor(250,180);
      tft.print("Error");
   
    }
  
   Serial2.println("AT+CIPMUX=0");         //To setup a single link

   delay(3000);

}

void gps_setup()
{

  gps_function();
 
 if(lat!=1000)
 {
      tft.setCursor(250,260);
      tft.print("Okay");
  
 }

 else
 {
      tft.setCursor(250,260);
      tft.print("Connecting");
   
 }
 
}

void gps_function()
{  
 
  smartdelay(600);
   
  gps.f_get_position(&lat, &lon, &age);
     
      
}


//To Read GPS Data
static void smartdelay(unsigned long ms)
{
  unsigned long start = millis();
  
  do 
  {
  
    while (Serial1.available())
      gps.encode(Serial1.read());

  } while (millis() - start < ms);

}


//Date Funtion Of GPS
void print_date(TinyGPS &gps)
{
  
  gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age);

  if (age == TinyGPS::GPS_INVALID_AGE)
    { 
      gps_clock="Connecting";
    }
   
   else
  {
    
    gps_speed=gps.f_speed_kmph();
      
    if(lap_initialize==1)
    {
      if(abs(TinyGPS::distance_between(lat,lon,lat_old,lon_old))<100)
      {
        distance = distance+(abs(TinyGPS::distance_between(lat,lon,lat_old,lon_old)))/1000;
        lat_old = lat;
        lon_old = lon;
      }
    }
    
    if(lap_initialize==0)
     { 
       lap_initialize=1;
       lat_initial=lat;
       lon_initial=lon;
       lat_old=lat;
       lon_old=lon;
       
     }
    
    if(minute<30)
      {
        if(second<10)
        {
          gps_clock=String(hour+5)+":"+String(minute+30)+":"+"0"+String(second);    
        }
        
        else
        {
         gps_clock=String(hour+5)+":"+String(minute+30)+":"+String(second);    
        }
      }
      
    else
      {
        if((minute-30)<10)
        {
          if(second<10)
          {
            gps_clock=String(hour+6)+":"+"0"+String(minute-30)+":"+"0"+String(second);
          }
          else
          {
            gps_clock=String(hour+6)+":"+"0"+String(minute-30)+":"+String(second);
          }
         }
        else
        {
          if(second<10)
         {
           gps_clock=String(hour+6)+":"+String(minute-30)+":"+"0"+String(second);        
         } 
         else
         {
         gps_clock=String(hour+6)+":"+String(minute-30)+":"+String(second);        
         }
        }
        
      }
  }
     
}


//Lap Counter
void lap_counter()
{
  
  if(lap_initialize==1)
  {
    
    if((abs(TinyGPS::distance_between(lat,lon,lat_initial,lon_initial))<10)&&(lap_flag==1))
      {
       
        lap=lap+1;
    
        lapspeed_average=avg_speed;
    
        lap_reset=distance;
    
        avg_distance=distance/lap;
    
        lap_flag=0;
    
        lap_start=millis();
  
       }

      if((abs(TinyGPS::distance_between(lat,lon,lat_initial,lon_initial))>100)&&(lap_flag==0))
        {
         lap_flag=1;
        }

      }

}

//Lap Distance Function
void distance_function()

 {

   lap_distance=distance-lap_reset;
  
   per_distance=100*lap_distance/avg_distance;
  
   avg_speed=3600000*lap_distance/(millis()-lap_start);

 }

void data_log()
{
  Jat=SD.open("MAIT.csv",FILE_WRITE);
 
  if(Jat)
   {
     sd_data =  String(gps_clock) + "," + String(lat,6) + "," + String(lon,6) + "," + String(lap) + "," + String(avg_distance) + "," + String(distance) + "," + String(lap_distance) + "," + String(gps_speed) + "," + String(avg_speed);
    
     Jat.println(sd_data);
    Jat.close();
    sd_check=1;
   }

  else
   {
     sd_check=0; 
   }

}

//Google Data Update
void google()
{
  
  String cmd = "AT+CIPSTART=\"TCP\",\"";
  cmd += DST_HOST;
  cmd += "\",80";

  
  Serial2.println(cmd);

  delay(500);
  
  cmd =  "GET /pushingbox?devid=";
  cmd += devid;
  cmd += "&lat="+String(lat,6)+"&lon="+String(lon,6)+"&lap="+String(lap)+"&lal="+String(avg_distance)+"&dis="+String(distance)+"&lac="+String(lap_distance)+"&spd="+String(gps_speed)+"&avg="+String(avg_speed)+" HTTP/1.1\r\n";     //construct http GET request
  cmd += "Host: api.pushingbox.com\r\n\r\n"; 

  String str= "AT+CIPSEND=";
  str += String(cmd.length());   
  Serial2.println(str);
  
  delay(500);

     Serial2.println(cmd);

}

void prints()
{
  
  tft.fillScreen(0x07FF);
  
    if(lap==0)
  {
    
    tft.setTextSize(1);
    tft.setTextFont(4);
    tft.setTextColor(TFT_BLACK); 
    tft.setCursor (25, 25);
    tft.print("dis  ");
    tft.print(" -");
    tft.setCursor (360, 25);
    tft.print("Lap   ");
    tft.print(lap);
    tft.setCursor (170, 45);
    tft.print(gps_clock);
    tft.setTextSize(4);
    tft.setCursor (110, 100);
    tft.print(gps_speed);
    tft.setTextSize(1);
    tft.setCursor (345, 150);
    tft.print(" Km/Hr");
    tft.setCursor (195, 200);
    tft.print(distance);
    tft.print(" km"); 
    tft.setCursor (28, 260);
    tft.print(" -");
    tft.print("  % ");
    if(sd_check==0)
     {
      tft.setCursor (220, 260);
      tft.print("***");
     }
    tft.setCursor (330, 240);
    tft.print("Avg  ");
    tft.print(avg_speed);
    tft.setCursor (330, 280);
    tft.print("Lav  ");
    tft.print(" -");
     
  }
    else
   {
    tft.setTextSize(1);
    tft.setTextFont(4);
    tft.setTextColor(TFT_BLACK); 
    tft.setCursor (25, 25);
    tft.print("dis  ");
    tft.print(avg_distance);
    tft.setCursor (360, 25);
    tft.print("Lap   ");
    tft.print(lap);
    tft.setCursor (180, 45);
    tft.print(gps_clock);
    tft.setTextSize(4);
    tft.setCursor (110, 100);
    tft.print(gps_speed);
    tft.setTextSize(1);
    tft.setCursor (345, 150);
    tft.print(" Km/Hr");
    tft.setCursor (195, 200);
    tft.print(distance);
    tft.print(" km"); 
    tft.setCursor (28, 260);
    tft.print(per_distance);
    tft.print("  % ");
    if(sd_check==0)
     {
      tft.setCursor (220, 260);
      tft.print("***");
     }
    tft.setCursor (330, 240);
    tft.print("Avg  ");
    tft.print(avg_speed);
    tft.setCursor (330, 280);
    tft.print("Lav  ");
    tft.print(lapspeed_average);
    
}

}

void print_speed()
{
    tft.fillScreen(0x07FF);
    tft.setTextSize(4);
    tft.setTextFont(4);
    tft.setTextColor(TFT_BLACK); 
    tft.setCursor (140, 105);
    tft.print(gps_speed);
    tft.setTextSize(2);
    tft.setCursor (170, 250);
    tft.print("Km/Hr");
    
}

void print_time()
{
    tft.fillScreen(0x07FF);
    tft.setTextSize(4);
    tft.setTextFont(4);
    tft.setTextColor(TFT_BLACK); 
    tft.setCursor (50, 105);
    tft.print(gps_clock);
    
}

void print_dis()
{
    tft.fillScreen(0x07FF);
    tft.setTextSize(4);
    tft.setTextFont(4);
    tft.setTextColor(TFT_BLACK); 
    tft.setCursor (140, 105);
    tft.print(distance);
    tft.setTextSize(2);
    tft.setCursor (200, 250);
    tft.print("Km");
    
}

Credits

Raunak Oberai

Raunak Oberai

2 projects • 25 followers
Mechanical engineering undergraduate with a vision to bridge the gap between machines and human, bringing the world closer and together.
Harsh Shukla

Harsh Shukla

1 project • 7 followers
EE, Currently working with a measuring Instrument Manufacturer.
Rishabh Jain

Rishabh Jain

0 projects • 5 followers
Mechanical Engineering Undergraduate | Tech Enthusiast | Eager to find innovative solutions.

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