#include <LiquidCrystal.h>

// Define the pins for the LCD display
LiquidCrystal lcd(13, 12, 5, 4, 3, 2);

// Define the pins for the fuel injectors
const int injector1 = 6;
const int injector2 = 7;
const int injector3 = 8;
const int injector4 = 9;
const int injector5 = 10;
const int injector6 = 11;

// Define the pin for the pressure sensor
const int pressureSensor = A0;

// Define the pressure conversion factor
const float pressureConversion = 0.0048828125;

// Define the modes
const int mode1 = A1;
const int mode2 = A2;
const int mode3 = A3;

// Define the current mode
int currentMode = mode1;

void setup() {
  // Initialize the LCD display
  lcd.begin(16, 2);

  // Set the injector pins as outputs
  pinMode(injector1, OUTPUT);
  pinMode(injector2, OUTPUT);
  pinMode(injector3, OUTPUT);
  pinMode(injector4, OUTPUT);
  pinMode(injector5, OUTPUT);
  pinMode(injector6, OUTPUT);

  // Set the pressure sensor pin as input
  pinMode(pressureSensor, INPUT);
}

void loop() {
  // Read the pressure sensor value
  int pressureValue = analogRead(pressureSensor);

  // Convert the pressure value to PSI
  float pressurePSI = pressureValue * pressureConversion;

  // Display the current mode on the LCD display
  lcd.setCursor(0, 0);
  lcd.print("Mode: ");
  lcd.print(currentMode);

  // Check the current mode and control the fuel injectors accordingly
  if (currentMode == mode1) {
    digitalWrite(injector1, HIGH);
    digitalWrite(injector2, HIGH);
    digitalWrite(injector3, HIGH);
    digitalWrite(injector4, HIGH);
    digitalWrite(injector5, LOW);
    digitalWrite(injector6, LOW);
  } else if (currentMode == mode2) {
    digitalWrite(injector1, HIGH);
    digitalWrite(injector2, HIGH);
    digitalWrite(injector3, HIGH);
    digitalWrite(injector4, HIGH);
    digitalWrite(injector5, HIGH);
    digitalWrite(injector6, HIGH);
  } else if (currentMode == mode3) {
    // Display the pressure value on the LCD display
    lcd.setCursor(0, 1);
    lcd.print("Pressure: ");
    lcd.print(pressurePSI);
  }

  // Check for button presses to change the mode
  if (analogRead(A1)) == 1028) {
    currentMode = mode1;
  } else if (analogRead(A2)) == 1028) {
    currentMode = mode2;
  } else if (analogRead(A3)) == 1028) {
    currentMode = mode3;
  }

  // Delay for a short period to avoid button bounce
  delay(50);
}