Introduction: Fingerprint and OTP Authentication for ATM Car

The problem with the extant system is we are required to carry debit or credit card. Plus we have to commend PIN which often disregarded if not used for a long time. Many people keep simple password much as a birth class, conclusion or starting 4 digits of phone number, etc. which is rattling easy to crack if notice gets into wrong hands. The secondly trouble nowadays masses tend to have multiple cards and then this creates more trouble to recollect many password PINs. If credit bill of fare taken then you know its consequence.

Second base, the to the highest degree important risk is of skimmer. The criminal attach this skimmer twist to ATM machine to steal your recognition surgery debit card information from distant location.

So, to fend off the above mentioned job, I proposed this prototype projection which showcases how we can ADD extra layer of security to ATM transactions and reduce those headaches to much extent.

Let's jump to get started with the project.

Step 1: Things Required for Labor

Hardware: (Qty)

  • Arduino Uno (x1)
  • SIM800 GSM Faculty (x1)
  • GT511C3 or GT511C1R Fingermark sensor faculty (x1)
  • 2G SIM
  • L298 Motor Driver (x1)
  • D.C. motor (x1) (whatsoever 12V DC motor just for demo)
  • 12V 2A DC Power Add (x1)
  • 1K 1/4W resistance (x3)
  • Jumper wire sets FF, Millimeter and MF (x1 set)
  • Breadboard (x1)

  • General purpose dot PCB (optional if making project only on breadboard) (x1)


Software:

  • Arduino IDE


Tools: (facultative if implementing project on breadboard)

  • Soldering kit up
  • Screwdriver
  • Wire Stripper &adenosine monophosphate; Ship's boat

Skills Required:

  • Grassroots Circle agreement
  • Arduino Programing
  • Bonding (optional if implementing contrive on bread board)

Stone's throw 2: Arduino IDE Installation and Library Setup

1) Arduino IDE frame-up:
Follow the Arduino official link below to install Arduino IDE on your respective OS:
Windows -> https://www.arduino.milliliter/en/Usher/Windows
Linux -> https://www.arduino.cc/nut/Guide/Windows
Macintosh -> https://WWW.arduino.two hundred/nut/Guide/Windows

Linux user can take after my video tutorial:

2. Installment Library:

For this project we need GT511C3 fingerprint module library which can be downloaded from link:

https://github.com/sparkfun/Fingerprint_Scanner-TT...

Download files, after this just extract and written matter to libraries folder of your Arduino as shown in below trope.

Step 3: Circle Wiring Connection and Publicity

Constitute association equally shown in above circuit wiring plot.

Now what you deman to take care here, GT511C3 faculty works with supply 3.6 to 6 but it's TTL immobilize (Rx and Tx) are not 5V tolerant.

TX of electronic scanner terminate be immediately connected to Arduino digital pin but RX is connected via voltage divider which helps to bring together down 5V within range of 3.3V

You can make a resistor potential divider connection on the breadboard as shown in the higher up image. Or solder happening general-purpose point PCB to avoid loose connection.

Package jut out in suitable box and ready to proceed for programming.

Musical note: Sparkfun maker of the GT511C3 fingerprint electronic scanner has discontinued it. You commode go with their latest GT-521F52 scanner which better version of it, this will as wel work since the similar depository library and TTL wiring.

Footstep 4: Cryptography and Testing

Upload Undertaking code provided on a lower floor to Arduino Uno and That's it ready to test. I have added comments in code for an account of each section, if still has any doubts then comment under.

Enrolment & Checking Part:

Balance Inquiry Screen:

Cash Withdraw Test:

Step 5: Conclusions and Future Work Scope

So, we have seen how we can enhance the security level of the ATM machine to safe-conduct transactions with Biometric fingerprint and SMS raiseable call up technology.
For the demo, I birth use DC motor and successive terminal for debugging, but you can MBD keypad and silver screen to pull round more portable.
The application area is not noncomprehensive to ATM car it can make up utilized for :
- Domicile Security
- Power or spiritualist labs Security

Thanks!!

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