How to make note and coin ATM

1:-  Bill acceptor: A device that can identify and accept various denominations of paper currency.

2:- Coin acceptor: A device that can identify and accept various denominations of coins.

3:- Dispenser: A device that can dispense notes or coins.

4:- Microcontroller: A small computer that can control the operation of the ATM.

5:- Display: A screen or other output device that can display information to the user.

6:- Keypad: An input device that allows the user to enter information.

7:- Sensors: Devices that can detect whether the dispenser has enough notes or coins, and whether the user has entered the correct information.

Software components:

User interface: The software that controls the display and keypad to allow the user to interact with the ATM.

Bill and coin recognition: The software that allows the ATM to recognize the denomination of the bills and coins that are inserted.

Currency counting: The software that counts the number of notes or coins that are dispensed.

Transaction management: The software that records each transaction, including the amount of money dispensed and the user's account balance.

Here's some sample code for a simple note and coin dispenser using an Arduino microcontroller:

            Code's 

#include <Servo.h>

Servo noteDispenser;  // servo object to control the note dispenser

int notePin = 9;  // servo control pin

const int coinPin = A0; // analog input pin for the coin acceptor

int coinValue; // value of the coin inserted

const int buttonPin = 7; // digital input pin for the button

int buttonState = 0; // current state of the button

void setup() {

  noteDispenser.attach(notePin); // attach the servo to the control pin

  pinMode(coinPin, INPUT); // set the coin pin as an input

  pinMode(buttonPin, INPUT); // set the button pin as an input

}

void loop() {

  // wait for user to press button

  buttonState = digitalRead(buttonPin);

  if (buttonState == HIGH) {

    // user has requested a note

    noteDispenser.write(90); // move the dispenser arm to release a note

    delay(1000); // wait for the note to be dispensed

    noteDispenser.write(0); // move the dispenser arm back to its starting position

  }

  

  // check if a coin has been inserted

  coinValue = analogRead(coinPin);

  if (coinValue >= 500 && coinValue <= 700) {

    // coin with value of 10 cents has been inserted

    // dispense a note

    noteDispenser.write(90); // move the dispenser arm to release a note

    delay(1000); // wait for the note to be dispensed

    noteDispenser.write(0); // move the dispenser arm back to its starting position

  }

}