This document describes a project to develop an IoT-based system to track lost ATM cards using multiple sensors. The system uses an ESP8266 module connected to a GPS sensor, flex sensor, moisture sensor, lasers and buzzer to detect the location and condition of a lost ATM card. The sensor data is sent to a cloud server and can be accessed through a mobile application. The hardware components include an ESP8266, GPS module, light sensors, buzzer, moisture sensors and flex sensors. The system is intended to provide more secure tracking of lost ATM cards compared to existing solutions.

1. SSM COLLEGE OF ENGINEERING
PARIHASPORA PATTAN
Department of Electronics and Communication Engineering
PROJECT : LOST ATM CARD ACCESS
USING IOT
PRESENTED BY:
1. KHALID MAHMOOD (19203135043)
2. SUHAIL AH SHEIKH (19203135041)
3. BILQEES BASHIR (19203135006)
4. SAMEER GULL (19203135042)
5. MUBASHIR KARIM (19203135072)

2. INTRODUCTION
 ATM tracking systems is very important activity tool in daily life. The ATM location in form of latitude
and longitude .GPS coordinates are the values of a location. This system is very sufficient for outdoor
application purposes.
 A security system is attached to the ATM to make the system more sufficient. A buzzer is installed in
ATM if the ATM is lost in a house or outdoors, we can find it using mobile application by pressing a
digital button on mobile application.
 Multiple sensors are used in order to monitor the status of lost ATM. LDR sensors, Moisture sensors and
lasers are used to find more accurate position of the lost ATM.
 Flex sensors are used to find the damage on ATM card. All this data is accessed using a mobile
application. This system is connected to cloud server using esp12e module.

3. BLOCK DIAGRAM
BUZZER
GPS
LIGHT
SENSORS
ESP
IOT
SERVER
MOBILE
PHONE
FLEX
SENSOR
MOISTURE
DETECTION

4. HARDWARE USED
1. ESP8266
2. GPS
3. LDR SENSORS
4. BUZZERS
5. MOISTURE MEASURING SENSORS
6. LASERS
7. FLEX SENSORS

5. ESP8266:
• NodeMCU ESP8266:
NodeMCU is an open-source Lua based firmware and development board specially targeted for IoT based
Applications. . It is a low cost wi-fi microchip with microcontroller capability.

6. NodeMCU Development Board Pinout Configuration:
PIN CATEGORY NAME DESCRIPTION
POWER MICRO USB. 3.3V ,GND,Vin Micro USB : NodeMCU can be powered through the usb port
3.3v: regulated 3.3v can be supplied to this pin to power the board
GND: ground pin
Vin: external power supply
Control pins EN,RST The pin and the button resets the microcontroller
Analog pins A0 used to measure analog voltage in the range of 0 to 3.3v
GPIO Pins GPIO1 TO GPIO16 NodeMCU has 16 general purposes input-output pins on its board
SPI Pins SDI,CMD,SD0,CLK NodeMCU has four pins available for SPI communication
UART pins TXD0,RXD0,TXD2,RXD2 NodeMCU has two UART interfaces,UART0(RXD0 & TXD0) &
UART1(RXD1 & TXD1). UART1 is used to upload the program.
I2C pins NodeMCU has IC2 functionality support but due to the internal
functionality of these pins, you have to find which pin is I2C
GPIO5 & GPIO 4 are frequently used i2c communication.

7. NodeMCU ESP8266 Specifications & Features:
 Operating Voltage: 3.3V
 Input Voltage: 7-12V
 Digital I/O Pins (DIO): 16
 Analog Input Pins (ADC): 1
 UARTs: 1
 SPIs: 1
 I2Cs: 1
 Flash Memory: 4 MB
 SRAM: 64 KB
 Clock Speed: 80 MHz
 Small Sized module to fit smartly inside your IoT projects

8. GPS:
NEO-6MV2 GPS Module:
The NEO-6MV2 is a GPS (Global Positioning System) module and is used for navigation. The
module simply checks its location on earth and provides output data which is longitude and latitude of
its position. These flexible and cost effective receivers offer numerous connectivity options in a
miniature (16 x 12.2 x 2.4 mm) package. The compact architecture, power and memory options
make NEO-6 modules ideal for battery operated mobile devices with very strict cost and space
constraints. Its Innovative design gives NEO-6MV2 excellent navigation performance even in the
most challenging environments.

9. Pin Name Description
VCC Positive power pin
RX UART receive pin
TX UART transmit pin
GND Ground
NEO-6MV2 GPS Module Pin Configuration:
The module has four output pins and we will describe the function each pin of them below. The powering of module and
communication interface is done through these four pins.

10. APPLICATIONS OF GPS
 Smart phone and tablets
 Navigation systems
 Drones
 Hobby projects

11. BUZZER:
A buzzer or beeper is an audio signaling device, which may be mechanical, electromechanical, or piezoelectric. Typical uses of
buzzers and beepers include alarm devices, timers and confirmation of user input such as a mouse click or keystroke. Buzzer is an
integrated structure of electronic transducers, DC power supply, widely used in computers, printers, copiers, alarms, electronic
toys, automotive electronic equipment, telephones, timers and other electronic products for sound devices. Active buzzer 5V Rated
power can be directly connected to a continuous sound, this section dedicated sensor expansion module and the board in
combination, can complete a simple circuit design, to "plug and play .

12. SPECIFICATIONS:
• On-board passive buzzer
• On-board 8550 triode drive
• Can control with single-chip microcontroller IO directly
• Working voltage: 5V
• Board size: 22 (mm) x12 (mm)

13. FLEX SENSOR:
Flex Sensors are commonly used in Robotic Gloves and other Robotic Control application. It can be used to analyze how much a
material is being bent. This flex sensor is 2.2” long and has two output leads which acts like a variable resistor. That is the
resistance between two pins change based on how much the sensor is bent. It is commonly used along with another resistor to
build a voltage divider circuit and then obtain a variable voltage based on the change in resistance of the sensor.

14. FLEX Sensor Features and Specifications:
 Operating voltage: 0-5V
 Power rating : 0.5Watt (continuous), 1 Watt (peak)
 Operating temperature: -45ºC to +80ºC
 Flat Resistance: 25K Ω
 Resistance Tolerance: ±30%

15. CONCLUSIONS
The GPS and sensor based security system for ATM cards is more secure and fast responded as compared to the other system like
personal wallets. Security plays an important role in our day to day life and it is need of the hour for all of us. Due to lack of
employment, poverty, some people are forced to involve in Robbery. Burglary in ATM centres is nowadays increasing evidently.
So Security to ATM card is a must, in order to safeguard both human lives and money. Our Design will turn out to be the perfect
solution to prevent the loss of ATM cards. We have reduced the disadvantages and our design ensures security for both human life
and money.

16. Thank
you