Coin Detector and Amount Counter

Project showcase

Components and supplies

Arduino Mega 2560 & Genuino Mega 2560

Adafruit Standard LCD - 16x2 White on Blue

Infrared led pair tx and rx

Apps and online services

Arduino IDE

About this project

Coin counter and amount counter is the project in this project number of coin inserted are first sorted through the slider and holes the there are IR led sensors to sense the coin then an interrupt signal is send to Arduino of that sense coin and further calculation are done and displayed on lcd 16x2 and serial monitor.

Code

coin detector counter and amount counterC#

/*
  COIN DETECTOR amount counter USING INTERRUPT
  DETEECT THE COIN USING INFRARED LED
  INTERRUPT PINS ARE CONNECTED TO THE CATHODE OF IR Recivers
  USING ARDUINO MEGA 2560
*/

#include <LiquidCrystal.h>


LiquidCrystal lcd(30, 32, 34, 31, 33, 35, 37);
const byte interruptPin1 = 21;
const byte interruptPin2 = 18;
const byte interruptPin3 = 19;
const byte interruptPin4 = 20;
const byte interruptPin5 = 3;
volatile int value10 = 0;
volatile int value5 = 0;
volatile int value1 = 0;
volatile int valueswitch = 0;
volatile int countOne = 0 ;
volatile int countFive = 0;
volatile int countTen = 0;
volatile int TOTAL=0;
void setup() {
  pinMode(interruptPin1, INPUT_PULLUP);
  pinMode(interruptPin2, INPUT_PULLUP);
  pinMode(interruptPin3, INPUT_PULLUP);
  pinMode(interruptPin4, INPUT_PULLUP);
  pinMode(interruptPin5, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(interruptPin1), coinOne , RISING);
  attachInterrupt(digitalPinToInterrupt(interruptPin2), coinFive , RISING);
  attachInterrupt(digitalPinToInterrupt(interruptPin3), coinTen , RISING);
  attachInterrupt(digitalPinToInterrupt(interruptPin4), show_1_5, RISING);
  attachInterrupt(digitalPinToInterrupt(interruptPin5), show_10, RISING);
  lcd.begin(16, 2);
  
  lcd.print("COIN DETECTOR &");
  lcd.setCursor(1, 1);
  lcd.print("AMOUNT COUNT");
  delay(1200);
  delay(1200);
  delay(1200);
  
  lcd.begin(16, 2);
  lcd.print("INSERT THE COIN");


  Serial.begin(9600);
  Serial.println(" ");
  Serial.print("COIN DETECTOR , SORT & AMOUNT COUNTER ");
}

void loop() {


  delay(2000);
  lcd.begin(16, 2);
  lcd.print("INSERT THE COIN");


}

/*

  INTERRUPT SERVICE ROUTINE

*/

void coinTen() {
  countTen++;
  value10 = (countTen * 10);
  Serial.println("\n");
  Serial.println(" 10Rs coin = \r ");
  Serial.print(value10);
  Serial.print("Rs");
  Serial.println("\n");


}
void coinFive() {
  countFive++;
  value5 = (countFive * 5);
  Serial.println("\n");
  Serial.println(" 5Rs coin = \r ");
  Serial.print(value5);
  Serial.print("Rs");

}

void coinOne() {
  countOne++;
  value1 = (countOne);
  Serial.println("\n");
  Serial.println(" 1Rs coin = \r ");
  Serial.print(value1);
  Serial.print("Rs");
}
void show_1_5()
{
  Serial.println("\n");
  Serial.println("Number of 1Rs coins =  \r ");
  Serial.print(countOne);
  Serial.println("\n");
  Serial.println("TOTAL 1Rs COINS =  \r ");
  Serial.print(value1);
  Serial.print("Rs");
  Serial.println("\n");
  Serial.println("Number of 5Rs coins =  \r ");
  Serial.print(countFive);
  Serial.println("\n");
  Serial.println("TOTAL Rs COINS =  \r ");
  Serial.print(value5);
  Serial.print("Rs");
  //coin of one Rs
  lcd.begin(16, 2);
  lcd.print("1Rs coin= ");
  lcd.setCursor(11, 0);
  lcd.print(value1);
  // coin of five Rs
  lcd.setCursor(0, 1);
  lcd.print("5Rs coin =");
  lcd.setCursor(11, 1);
  lcd.print(value5);

}
void show_10()
{
  Serial.println("\n");
  Serial.println("Number of 10Rs coins =  \r ");
  Serial.print(countTen);
  Serial.println("\n");
  Serial.println("TOTAL 10Rs COINS =  \r ");
  Serial.print(value10);
  Serial.print("Rs");
  //coin of 10Rs
  lcd.begin(16, 2);
  lcd.print("1Rs coin= ");
  lcd.setCursor(11, 0);
  lcd.print(value10);
  //TOTAL AMOUNT
  TOTAL=(value1+value5+value10);
  lcd.setCursor(0, 1);
  lcd.print("TOTAL =");
  lcd.setCursor(11, 1);
  lcd.print(TOTAL);
   Serial.println("\n");
  Serial.println("TOTAL AMOUNT =  \r ");
  Serial.print(TOTAL);
  Serial.print("Rs");
}