#include <LiquidCrystal.h>

#define PIN_TRIG PB5
#define PIN_ECHO PB6
#define LED PB9
const int rs = PB11, en = PB10, d4 = PB0, d5 = PB1, d6 = PC13, d7 = PC14; //mention the pin names to with LCD is connected to 

LiquidCrystal lcd(rs, en, d4, d5, d6, d7); //Initialize the LCD

void setup() {
  Serial.begin(115200);
  Serial.println("Hello STM32!");
  Serial.println("Welcome to Wokwi :-)");

  pinMode(LED, OUTPUT);
  Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
  cd.begin(16, 2);//We are using a 16*2 LCD

  lcd.setCursor(0, 0); //At first row first column 

  lcd.print("Interfacing LCD"); //Print this

  lcd.setCursor(0, 1); //At secound row first column 

  lcd.print("STM32"); //Print this

  

  delay(2000); //wait for two secounds 

  lcd.clear(); //Clear the screen

}

void loop() {
   digitalWrite(LED, LOW);
  delay(500);
  digitalWrite(LED, HIGH);
  delay(500);
  // Start a new measurement:
  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);

  // Read the result:
  int duration = pulseIn(PIN_ECHO, HIGH);
  Serial.print("Distance in CM: ");
  Serial.println(duration / 58);
  Serial.print("Distance in inches: ");
  Serial.println(duration / 148);

  delay(1000);
  lcd.setCursor(0, 0); //At first row first column 

  lcd.print("STM32 -Blue Pill"); //Print this


  lcd.setCursor(4, 1); //At secound row first column 

  lcd.print("Hello World"); //Print the value of secounds
}