Arduino Speedometer

Arduino Based Speedometer: Discover our latest creation, an Arduino-based digital speedometer. Say goodbye to traditional analog speedometers and embrace the precision and convenience of our digital display. With its easy-to-read interface, you can monitor your speed at a glance, while enjoying additional features like trip distance, fuel consumption, and even navigation instructions.

Whether you're a car enthusiast, an athlete seeking performance tracking, or a sailor navigating the seas, our digital speedometer has diverse applications. Experience safety, accuracy, and enhanced functionality on the road, track, or open water.

Join us at Robotshapers as we shape the future of technology, one innovation at a time. Visit robotshapers.com and embark on a journey towards a connected world.

A digital speedometer is an electronic device that provides information about the speed of a vehicle. Unlike traditional analog speedometers that use a mechanical sensor, digital speedometers use a digital image to display the speed reading. They are often found in modern cars and have many advantages.
The Digital Speedometer features an accurate and easy-to-read display, most in digital format, allowing drivers to monitor their speed at a glance. They can also be programmed to display additional information such as trips, fuel consumption and even navigation instructions.
These speedometers rely on sensors that measure wheel spin or use GPS technology to determine speed. This information is then processed and displayed digitally on the screen. Digital speedometers can provide higher readings than analog speedometers as they are not affected by issues such as calibration or mechanical wear and tear.

In addition, digital speedometers can be combined with other safety features such as speed limit alerts to help drivers stay safe on the road. Overall, the digital speedometer improves driving by providing fast and easy-to-read information while combining additional features for convenience and safety.

Components required:

1. Arduino Uno
2. LCD (16X2)
3. 10K variable resistor
4. IR sensor
5. 5V DC power supply
6. SG90 servo

Circuit Diagram:

In this circuit we will make a tachometer code and consider a wheel diameter and according to that we will count total travel and speed which will be shown on display. Also we will attach a servo motor which will act as a dial pin of speedometer.

Code:

#include 
#define IR 8// IR Sensor pin
#include
int temp=0;
float rpm=0;
float dia =0.3;// considered diameter of wheel is 0.3 meters 
int velocity =0;
int revolution =0;
float Travel =0;// for total travel distance in KM
Servo servo;
LiquidCrystal lcd(2,3,4,5,6,7);
void setup() 
{
Serial.begin(9600);
lcd.begin(16,2);
servo.attach(9);
pinMode(IR,INPUT);
lcd.setCursor(0,0);
lcd.print("Robotshapers");
lcd.setCursor(0,1);
lcd.print("Speedometer");
servo.write(0);
delay(500);
servo.write(180);
delay(500);
servo.write(0);
delay(1500);
lcd.clear();
}
void loop() 
  { 
  lcd.setCursor(0,0);
  lcd.print("RPM-");
  lcd.setCursor(0,1);
  lcd.print("Tr:"); 
  lcd.setCursor(3,1);
  lcd.print(Travel); 
  lcd.setCursor(10,0);
  lcd.print("Speed:");
  lcd.setCursor(10,1);
  lcd.print(velocity);
  velocity=(rpm*3.14*dia*3600)/60000;
  Travel= (revolution *dia*3.14)/1000;// multiplied by circumferece of wheel and devided by 1000 for converting meter in to Kilometer
  servo.write((velocity*100)/180);// considering max velocity is 100
  if( digitalRead(IR)==0)
  { 
    temp++;
   lcd.setCursor(0,0);
   
  }
  if( digitalRead(IR)==1)
  { 
   temp;
   revolution = revolution+1;
   rpm=60000/(temp+300);
   lcd.setCursor(4,0);
   lcd.print(rpm);
   Serial.print(rpm);
   delay(300);
   temp=0;
   }
  }

Applications:

Digital speedometers have applications in many industries and environments beyond traditional vehicles. Here are some key applications:

1. Automotive Industry: Digital speedometers are widely used in cars, motorcycles and the automotive industry. They provide clear, concise readings along with additional information on fuel consumption, trip, temperature and more.
2. Sports and sports: Sports such as cycling, running and skiing use digital speedometers to monitor speed and track performance. They allow athletes to analyze their speed metrics, set goals and improve their overall performance.
   
3. Navigation at Sea: Digital speedometers are used in ships and boats to measure the speed of the ship in nautical miles. They allow sailors to maintain safe speed and improve fuel efficiency.
4. Fitness Trackers: Many fitness trackers include a digital pedometer to monitor speed and distance during activities such as walking, running or cycling. This information can help people keep track of their exercise and progress towards their exercise goals.
5. Industrial Machinery: Digital speedometers are installed in industrial machinery to monitor the rotational speeds of components such as engines, conveyor belts, and turbines.This ensures efficient operation and ensures timely maintenance.

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