Arduino ile araba için start-stop butonu yapımı

Dünya üzerinde en çok kullanılan prototipleme kartı olan ARDUINO kartları ile yapılamayacak olan elektronik proje yoktur desek yalan olmazdı. Bu ilk projede yeni nesil araçlarda görmeye alıştığımız start-stop butonu uygulamasını paylaşıyoruz.

Öncelikle bilmeyenler için start-stop butonu arabanızı çalıştırmak için kullanılan kontak anahtarının yerine geçmektedir. Biz bu yazıda aynı kontak anahtarı gibi davranacak olan basit bir butondan bahsediyor olacağız fakat gerek araç güvenliği gerekse sürüş emniyeti için alınması gereken önlemleri almadan bu uygulamayı aracınızda denememenizi önemle hatırlatırız.

Bu projede ihtiyaç duyacağımız bileşenlere gelirsek;

Arduino Uno

4lü 12V Röle Modulü

Buton

Çeşitli Boylarda Kablo

Araba ve Elektrik Bilgisi 😀

Arduino Kodu

//Engine Start/Stop System - Steuerung - Starten Modul
//Designed and programmed by Daniel Dias de Moraes
//Tested on FIAT Uno Mille 1.0 - Carburated Engine (Gasoline)
// VERSION 4.3a  - 24/04/2022


//================== Include Library
#include "pitches.h"
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_PCD8544.h>


//================== SET-UP PINS
const int StartBTN     = 13;
const int IgnitionRLY  = 12;
const int StarterRLY   = 11;
const int StatusLED    = 10;
Adafruit_PCD8544 display = Adafruit_PCD8544 (3, 4, 5, 6, 7);

//================== SET-UP VARIABLE
int EngineState = 0; //Control the state of engine, Stand-by 0, Starting-up 1, Running 2, Shutting-down 3;
int StartStatus = 0; //Start Button Status, alternate between engine states;
int StartValue  = 0; //Start Button Value;
int StartValue2 = 0; //Start Button Value 2;
int StartRetry  = 0; //Retry count for engine unsucessful Start-up;
int Timeout     = 0; //Timeout for multiple events;
int Flag        = 0; //Flag to mark events that have to occur only one time

//-----------------= Variables for rotation sense
volatile byte rpmcount;
unsigned int rpm;
unsigned long timeold;

void rpm_fun()
{rpmcount++;}

//-----------------= 


//======================================== SET-UP I/O ======================================================//
void setup ()
{
  Serial.begin(9600); //Serial Communication
  
//----==== Welcome Tone
        noTone(A0);            
        tone(A0, NE5, 600);
        delay(275);
        noTone(A0);
        delay(50);   
        noTone(A0);            
        tone(A0, NE6, 600);
        delay(200);
        noTone(A0);
  
  
//----==== Set-Up LCD
  
  
  //=======================FIAT SPLASH SCREEN 
  display.begin();
  display.setContrast(60);
  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(BLACK);
  display.setCursor(16,0);
  display.println("FIAT");
  display.setCursor(20,16);
  display.setTextSize(2);
  display.println("Uno   Mille");
  display.display();
  delay (1750);
  
  //======================PROTOTYPE VER DISPLAY
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(20,8);
  display.println("Welcome");
  display.setCursor(10,24);
  display.println("Ubermacht");
  display.setCursor(4,32);
  display.println("Auto-Kontrol");
  display.setCursor(0,40);
  display.println("Prototype V4.3a");
  
  display.display();
  delay (1000);
 
//----==== Outputs and Inputs Set-Up
  pinMode(StatusLED,   OUTPUT); //Status LED
  pinMode(StartBTN,     INPUT); //Start Button
  pinMode(IgnitionRLY, OUTPUT); //Ignition Relay/Control
  pinMode(StarterRLY,  OUTPUT); //Starter Relay/Control
  
  
//----==== Tachometer reading set-up  
  attachInterrupt(0, rpm_fun, CHANGE);
   rpmcount = 0;
   rpm = 0;
   timeold = 0;
}

//=====================================--- LOOP ---==============================================//
void loop ()
{

//========== Engine RPM Reader  
  detachInterrupt(0);
  rpm = 30*1000/(millis() - timeold)*rpmcount;
  timeold = millis();
  rpmcount = 0;
  attachInterrupt(0, rpm_fun, CHANGE);
  Serial.print(rpm);  

  
//========= Button Read;
 StartValue = digitalRead (StartBTN);
 

//----------------============ Button Press Verification 
 if (StartValue != StartValue2)
  { 
  if (StartValue == HIGH) 
     { 
       StartStatus ++;
       Serial.println(StartStatus);

        noTone(A0);            
        tone(A0, NF5, 600);
        delay(100);
        noTone(A0);
        delay(80);
        tone(A0, NF5, 600);
        delay(100);
        noTone(A0);      
     }
  }
 StartValue2 = StartValue;
//----------------============ 
 
 
 
//------------------------------ Stage 0 - Idle - DISABLED IN THIS VERSION
  if (StartStatus == 0)
  {
    /*
    Serial.println("Stand-by Mode - Waiting for Start - E0S1");
    // Display Message on LCD
    lcd.clear();
    lcd.print("   SYSTEM OFF   ");
    lcd.setCursor (0,2);
    lcd.print(">>>Press Starter");
   */ 
    //Check if everything is off;
    digitalWrite (StarterRLY, LOW);
    digitalWrite (IgnitionRLY,LOW);
    digitalWrite (StatusLED,  LOW);
    StartRetry = 0;
    Timeout    = 0;
    Flag       = 0;
    
    if (rpm > 0) //If ON goes to Stage 5 - Running
       {StartStatus = 5;}
    else
       {StartStatus = 1;}
       
    delay (10);
    
  }

//------------------------------ Stage 1 - Ignition  
  if (StartStatus == 1)
  {

    Serial.println("Start Mode - Waiting for Confirm - E0S2");
    
    //-------- Display Timeout Message
  display.setTextColor(WHITE, BLACK);
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0,0);
  display.println("  ENGINE OFF  ");
  
  //display.setTextColor(BLACK,WHITE);
  display.setTextSize(1);
  display.setCursor(0,8);
  display.println("  Hold Start  ");
  display.display();
  
    StartRetry = 0;
    Timeout =   0;


    //~~~~~~~~~~~~ Create LED Hold effect
    digitalWrite (IgnitionRLY, HIGH);
    
       for(int fadeValue = 0; fadeValue <= 255; fadeValue +=5)
          {
           analogWrite(StatusLED, fadeValue);
           delay(3);
          }
      
      for(int fadeValue = 255 ; fadeValue >= 0; fadeValue -=5)
          {
           analogWrite(StatusLED, fadeValue); 
           delay(3);
          }
          delay(100); 

     //~~~~~~~~~~~~ TIME OUT SYSTEM (IN CASE OF STAGE ZERO ACTIVE)
      /* Timeout ++;
       
       if (Timeout > 8)
       {
         StartStatus = 0;
         Timeout =   0;
       }*/
       
    if (rpm > 200) //If ON goes to Stage 5 - Running
       {StartStatus = 5;}
    else
       {StartStatus = 1;}
    
  }

//------------------------------ Stage 2 - Starting up  
 if (StartStatus == 2)
  {
    Serial.println("Start up Procedure - Start on Course - E1S3");
    
  display.setTextColor(WHITE, BLACK);
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0,0);
  display.println(" ENGINE START ");;
  
  display.setTextColor(BLACK,WHITE);
  display.setTextSize(1);
  display.setCursor(0,8);
  display.println(" Starting Up  ");
  display.display();
    

    
    //-------------========= LED Effect before start;
    
    for(int fadeValue = 255 ; fadeValue >= 0; fadeValue -=5)
       {
        analogWrite(StatusLED, fadeValue); 
        delay(10);
       }
       
    digitalWrite(StatusLED, LOW);
    delay (500);

    for(int fadeValue = 0; fadeValue <= 255; fadeValue +=5)
       {
        analogWrite(StatusLED, fadeValue);
        delay(10);
       }
      //-------------=========
    
    //--- Ensure Ignition relay is ON  
    digitalWrite (StarterRLY, HIGH);
    
    //--- Ignition for 0.5 sec
    digitalWrite (StatusLED,  HIGH);
    delay (500);
    digitalWrite (StarterRLY, LOW);
    
    //--- Follow next stage - Start-up verification
    Serial.println("Start up Procedure - Test of engine start up - E2S1");
    StartStatus = 3;
    delay (500);
  }

    
  
//------------------------- Ignition verification
 if (StartStatus == 3)
  { 
    Timeout ++; //Timeout happens to let engine stabilize revs or ensure unsucessfull start
    delay(50); 
    /* ************* LCD DISABLED *************
    Serial.println ("Testing Ignition - E2S2");
    Serial.println ("RPM is: ");
    Serial.print (rpm);
    */
    
    //------====== On verification if engine ON or OFF
    
    if (Timeout > 10) //While timeout is not complete test doesnt happen
       {
         if (rpm > 0) //If ON goes to Stage 5 - Running
            {
            StartStatus = 5;
            }
  
            else // If OFF goes to Stage 4 - Retry
            {
            delay (250);
            StartStatus = 4;
            Timeout = 0; 
            } 
       }
       
    else // If timeout not reached, tests again and ++ on Timeout variable
       {
         StartStatus = 3;
       }
  }
 
 //==============================Retry System 
  if (StartStatus == 4)
  {
    Serial.println ("Ignition Retry - Could not start, will retry...");
    
  display.setTextColor(WHITE, BLACK);
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0,0);
  display.println(" ENGINE START ");
  
  display.setTextColor(BLACK,WHITE);
  display.setTextSize(1);
  display.setCursor(0,8);
  display.println(" Start Failed ");
  display.display();
  
  delay (500);
   
    //------====== On verification if started
    if (StartRetry < 2 && rpm > 0)
    {
      StartRetry =0 ;
      StartStatus = 5;
      delay (300);
    }
    
    //------====== On verification if unsucessful
    if (StartRetry < 2 && rpm < 30)
    {
      //Retry Tone            
      noTone(A0);
      tone(A0, NG4, 600);
      delay(650);
      noTone(A0);
     
      display.setTextColor(WHITE, BLACK);
      display.clearDisplay();
      display.setTextSize(1);
      display.setCursor(0,0);
      display.println(" ENGINE START ");

      display.setTextColor(BLACK,WHITE);
      display.setTextSize(1);
      display.setCursor(12,8);
      display.print("Retrying");
      display.display();
      delay (500); 
      
      StartRetry ++;
      StartStatus = 2;
      delay (300);
    }
    
    else //------====== On verification is unsucessfull more than three then, give up
    {
            //End-of-Tries Tone
            noTone(A0);
            tone(A0, NG4, 600);
            delay(110);
            noTone(A0);
            delay(80);
            tone(A0, NG4, 600);
            delay(110);
            noTone(A0);
            delay(80);
            tone(A0, NG4, 600);
            delay(110);
            noTone(A0);  
      StartStatus = 0;
      StartRetry = 0;
      delay (300);
    }
        
  }
  
    if (StartStatus == 5)
    {
          for(int fadeValue = 255 ; fadeValue >= 15; fadeValue -=5)
       {
        analogWrite(StatusLED, fadeValue); 
        delay(10);
       }
                 noTone(A0);
            tone(A0, NG3, 600);
            delay(110);
            noTone(A0);
            delay(80);
            tone(A0, NG4, 600);
            delay(110);
            noTone(A0);
            delay(80);
            tone(A0, NG5, 600);
            delay(110);
            noTone(A0);  
            
    digitalWrite (IgnitionRLY, HIGH);
    StartStatus ++;
    }
  
//------------------------------ Stage 3 - Running  
 if (StartStatus == 6)
  {
    Serial.println("Running Mode - Engine Running - E2S4");
    
    
    display.clearDisplay();
    display.setTextSize(2);
    display.setTextColor(BLACK,WHITE);
    display.setCursor(0,0);
    display.println(rpm);

    display.display();
    
    digitalWrite (IgnitionRLY, HIGH);
    analogWrite (StatusLED, 15);
    delay(10);
    
    if (rpm < 100)
    {StartStatus = 1;}
    else
    {StartStatus = 6;}

  }

//------------------------------ Stage 4 - Shut-down  
 if (StartStatus == 7)
  {
    Serial.println("Shut-down Mode - Cutting off Engine - E3S5");
    /*
    lcd.clear();
    lcd.print(" SHUTTING DOWN ");
    lcd.setCursor (0,2);
    lcd.print("Please Wait...");
    */
    
                     noTone(A0);
            tone(A0, NG5, 600);
            delay(110);
            noTone(A0);
            delay(80);
            tone(A0, NG4, 600);
            delay(110);
            noTone(A0);
            delay(80);
            tone(A0, NG3, 600);
            delay(110);
            noTone(A0); 
    
    digitalWrite (IgnitionRLY, LOW);
    digitalWrite (StarterRLY,  LOW);
    digitalWrite (StatusLED,   LOW);
    delay (1000);
  }

  
  if (StartStatus == 7)
  { StartStatus = 0;}
  

  
  

}

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