The document presents a smart retail system aimed at enhancing the shopping experience for customers and retailers through features like automated billing and real-time tracking. Key hardware components include an Arduino Uno, WiFi module, and barcode scanner, while software interfaces are provided via a mobile app or website for managing purchases and inventory. Advantages include bypassing billing queues and interactive shopping assistance, though limitations involve potential scanning errors and higher initial costs.

1. SMART
RETAIL.
PRESENTED TO:
Dr. Soumitra Nayak
ECE4006: SENSORS AND IOT
PRESENTED BY:
Kunal Rana (18BEE10024)

2. Objective of Design and its features.
1. The system is designed to make retail
shopping easy and smart.
2. Benefits customers :
a. People Counter -> Fixed number of people
allowed at a time (Freedom)
b. Independent Billing -> No billing queues
(Time)
c. Smart Cart -> Displays current bill amount
(Budget)
3. Benefits retailer :
a. Automation -> Lesser staff (Money)
b. Innovation -> Attracts Customers
(Profitability)

3. BLOCK DIAGRAM of the device with OPERATIONAL DESCRIPTION:
● Registration and
Unique Number
generation
● Keeping track of
items and bill
● Bill payment and
Unique number
discarding.

4. Hardware components:
Arduino UNO Microcontroller:The Arduino
Uno is an open-source microcontroller board
based on the Microchip ATmega328P
microcontroller and developed by Arduino.cc. The
board is equipped with sets of digital and analog
input/output pins that may be interfaced to
various expansion boards and other circuits.
ESP8266 (Wifi Module):ESP8266 WiFi
Module is a self contained SOC with
integrated TCP/IP protocol stack that can
give any microcontroller access to your WiFi
network.

5. Hardware Component:
HX711 (Weighing module):It is
a precision 24-bit analog to digital
converter (ADC) designed for weigh
scales and industrial control
applications to interface directly
with a bridge sensor.
Load Cell: It is a force
transducer. It converts a force
such as tension, compression,
pressure, or torque into an
electrical signal that can be
measured and standardized.
Barcode scanner: It is
an optical scanner that can
read printed barcodes,
decode the data contained
in the barcode and send the
data to a computer.

6. Hardware Connections:
LOAD CELL AND HX711 to ARDUINO UNO.
BARCODE SCANNER TO ARDUINO UNO:
ARDUINO UNO to ESP8266

7. Software components:
Arduino IDE: The Arduino Software
(IDE) allows you to write programs and
upload them to your board.
MOBILE APPLICATION/ WEBSITE:
● The mobile application/website will
provide an interface to customer and
retailer.
● The mobile app/website will help
customer to keep a track of his bill
and products purchased with some
basic details regarding product.
● The mobile app/website will help
retailer to keep a track of the stock
available.
● The mobile app/website will allow
retailer to know the detailed
purchase history of the customer and
his billing summary.

8. Working of Hardware and Software components:
Software component:
● Cloud--->Real time data--->
calculations--->Mobile
app/website
● It will have the detailed
information of the goods available
at the store.
(Quantity, expiry etc.)
Hardware Components:
● Barcode scanner-
Barcode of item---> barcode
scanner--->Arduino uno--->Wifi
module--->Cloud--->Mobile
app/website
● Weight measuring-
Load cell--->HX711--->Arduino
uno--->Wifi
module--->Cloud--->Mobile
app/website

9. Advantages of this model:
● Keeps record of number of carts (people) in
shop, intimates if exceeds capacity. Also
monitors suspicious activities (Abnormally
active for long duration)
● Customer bypasses the biller and queue.
Faster shopping experience.
● Interactive cart helps customer find the
specified product in shop by letting him
know the row and rack number.
● Reads premade shopping list through a NFC
sensor from his smartphone.
● Minimal multi touching of surfaces, which is
crucial these times.
● Also helps customer get to know additional
details about product such as expiry,
nutritional facts, trends, local demand, etc.

10. Limitation of this model:
● At present technology(Barcoding), there
are chances the product goes without being
scanned into the cart, accidentally or
intentionally.
● Costly compared to current practices, but
reaps the benefit in long run. (Remember,
Time is Money!)
● Carts will need recharging of batteries and
hence will have a definite down time. Hence
extra carts should be ready for peak hours.
● Verification of purchased products on exit
is a problem to be solved.

11. THANK YOU.