Arduino IDE Coding

Arduino IDE Coding

#include 
#include 
#include 
#include 

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

#define TRIG_PIN 9
#define ECHO_PIN 10

#define SENSOR_HEIGHT 200   // Height of sensor from floor in cm

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

long duration;
int distance;
int height;

void setup()
{
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

  Serial.begin(9600);

  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C))
  {
    Serial.println("OLED failed");
    while (true);
  }

  display.clearDisplay();
}

void loop()
{
  // Trigger ultrasonic pulse
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);

  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);

  digitalWrite(TRIG_PIN, LOW);

  // Read echo
  duration = pulseIn(ECHO_PIN, HIGH);

  // Calculate distance
  distance = duration * 0.034 / 2;

  // Calculate human height
  height = SENSOR_HEIGHT - distance;

  // Print to Serial Monitor
  Serial.print("Distance from sensor to head: ");
  Serial.print(distance);
  Serial.print(" cm   ");

  Serial.print("Human Height: ");
  Serial.print(height);
  Serial.println(" cm");

  // Display on OLED
  display.clearDisplay();

  display.setTextSize(1);
  display.setTextColor(WHITE);

  display.setCursor(0, 10);
  display.print("Distance: ");
  display.print(distance);
  display.println(" cm");

  display.setCursor(0, 35);
  display.print("Height: ");
  display.print(height);
  display.println(" cm");

  display.display();

  delay(1000);
}