Arduino Based Smart Distance Meter
· ARDUINO NANO
· ARDUINO NANO SERIAL USB CABEL
· ULTRASONIC SENSOR (HC-SR04)
· OLED DISPLAY
· BREAD-BOARD
· JUMPER WIRES
· BATTERY (optional) you can also use by usb cabel power supply
SOFTWARE & APPLICATION
· ARDUINO IDE
https://www.arduino.cc/en/software
CIRCUIT DIAGRAM
ARDUINO CODE'S
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define trigPin 9
#define echoPin 8
#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);
void setup() {
Serial.begin (9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
display.begin(SSD1306_SWITCHCAPVCC, 0x3C); //initialize with the I2C addr 0x3C (128x64)
display.clearDisplay();
}
void loop() {
float duration;
float distance_cm;
float distance_in;
digitalWrite(trigPin, LOW); //PULSE ___|---|___
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance_cm = (duration/2) / 29.1;
distance_in = (duration/2) / 73.914;
display.setCursor(30,0); //oled display
display.setTextSize(1);
display.setTextColor(WHITE);
display.println("Distance Meter");
display.setCursor(10,18); //oled display
display.setTextSize(2);
display.setTextColor(WHITE);
display.println(distance_cm);
display.setCursor(90,18);
display.setTextSize(2);
display.println("cm");
display.setCursor(10,45); //oled display
display.setTextSize(2);
display.setTextColor(WHITE);
display.println(distance_in);
display.setCursor(90,45);
display.setTextSize(2);
display.println("in");
display.display();
delay(1000);
display.clearDisplay();
Serial.println(distance_cm);
Serial.println(distance_in);
}
YOUTUBE VIDEO LINK
https://youtube.com/shorts/bYwQIT8mi_Q?feature=share
