Techno Meter: A Simple Sensor Counter

 

Introduction

In the world of electronics, innovation often springs from simplicity. Today, we're excited to introduce the Techno Meter, a unique sensor counter that combines the functionality of a traditional tasbeeh counter with modern electronic components. This project is not only practical but also a fantastic way to explore the basics of electronics and programming.



What is a Techno Meter?

The Techno Meter is an electronic counter designed to track repetitive tasks or events. Whether you want to keep count of prayers, steps, or any other activities, this device provides an efficient and easy-to-use solution. Using a tasbeeh counter as a foundation, we will enhance its capabilities with a few additional components.

Components Needed

To build your Techno Meter, gather the following materials:

  • Tasbeeh Counter: The main component for counting.
  • Arduino Board: For processing the input and output.
  • Ultrasonic Sensor: To detect objects or events.
  • LCD Display: To visually show the count.
  • Jumper Wires: For connections.
  • Breadboard: To prototype your circuit.
  • Power Source: Battery or USB power supply.

Step-by-Step Guide

Step 1: Assemble the Components

  • Connect the ultrasonic sensor to the Arduino board. Typically, the VCC pin goes to 5V, the GND to ground, and the TRIG and ECHO pins to digital pins on the Arduino.
  • Attach the LCD display to the Arduino using the I2C module for easy connection.
  • Connect the tasbeeh counter in a way that allows the Arduino to read its input.

Step 2: Write the Code

Using the Arduino IDE, write a program that:

  1. Initializes the ultrasonic sensor and LCD.
  2. Continuously checks for objects within a specific range.
  3. Increments the count on the LCD whenever an object is detected.
  4. Resets the count when a button on the tasbeeh counter is pressed.

Sample Code:

cpp
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2); // Set the LCD address

const int trigPin = 9;
const int echoPin = 10;
long duration;
int distance;
int count = 0;

void setup() {
  lcd.begin();
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  lcd.print("Techno Meter");
  delay(2000);
  lcd.clear();
}

void loop() {
  // Trigger the ultrasonic sensor
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  duration = pulseIn(echoPin, HIGH);
  distance = duration * 0.034 / 2; // Calculate distance in cm
  
  if (distance < 10) { // Object detected within 10 cm
    count++;
    lcd.clear();
    lcd.print("Count: ");
    lcd.print(count);
    delay(1000); // Debounce delay
  }
}

Step 3: Testing

  • Once your circuit is assembled and your code uploaded, power the Arduino. Move an object (like your hand) close to the ultrasonic sensor to test the counting functionality. The count should increase on the LCD display.

Conclusion

The Techno Meter is an excellent project for electronics enthusiasts and beginners alike. It demonstrates how simple components can be integrated to create a useful device. By using a tasbeeh counter as a base, this project not only serves as a practical tool but also enhances your understanding of electronics and programming.

Get Started!

So, gather your components and start building your own Techno Meter today! Don’t forget to share your experiences and improvements with the project. Happy counting!