Digital Notice & Advertising Display System Department: Electronics and Communication Engineering Student: [Your Name]  Mentors: Dr. [Mentor 1 Name], Prof. [Mentor 2 Name] Introduction (Problem Statement) Traditional bulletin boards and printed posters are static, labor-intensive, and wasteful. They require physical replacement of notices, creating clutter and significant paper waste. For example, libraries note that “traditional bulletin boards rely heavily on printed materials, leading to significant paper waste”. In contrast, digital signage offers dynamic, remotely-updated displays that can replace multiple posters without any printing. By using an electronic display controlled via a network, we can update notices or ads instantly from a PC or phone, saving time and paper. This project aims to design a low-cost, remotely managed digital display (using LED/LCD screens with Wi-Fi/Bluetooth connectivity) to modernize notice boards, reduce waste, and improve communication efficiency. System Block Diagram Figure: Block diagram of the proposed digital signage system. The user (via Mobile/PC) sends content (text/images) → through a wireless module → to a processor (microcontroller/computer) → which drives the display panel. Mobile/PC Input: User creates or selects content (e.g. a notice or advertisement) and sends it via a wireless interface. Wireless Module: A Wi-Fi/Bluetooth/4G interface (e.g. ESP32’s Wi-Fi or a USB dongle) provides real-time connectivity to receive updates without manual intervention. Processor (Controller): A microcontroller or single-board computer (e.g. ESP32 or Raspberry Pi 4) processes the incoming content and converts it into display commands. The Raspberry Pi can run a full OS for complex content, while the ESP32 offers a low-cost option with built‑in Wi-Fi. Display Driver Circuit: Converts the processor’s signals into the appropriate format (LVDS/TTL/HDMI) for the screen. A driver board matched to the specific panel (LED/LCD) handles this. LED/LCD Screen: A flat-panel display (24″–55″ typical) that presents the notices/ads. Modern LED displays consume relatively low power and have long lifetimes. List of Components Display Panel: LED or LCD screen (e.g. 24″ HD TV to 55″ monitor). A basic 24″ TV can cost around ₹6,000 (e.g. discounted price ₹5,999), while a larger 43″ smart LED might be ~₹19,000. Controller: Raspberry Pi 4 (4GB model ₹700–1,200). Raspberry Pi offers high performance for video/graphics and is cost-effective. The ESP32 is an ultra-low-cost MCU with Wi-Fi/Bluetooth, suitable for simpler content. Wireless Module: If not on-board, a USB Wi-Fi adapter (₹200–500) or Bluetooth dongle. The ESP32 includes Wi-Fi internally. Power Supply: 5V/3A USB-C SMPS for Raspberry Pi (₹800–1,200) or 5–12V SMPS for the chosen display. Ensure sufficient current for the screen’s backlight. Display Driver Board: Often included with panels (HDMI/VGA interface), or a generic driver (₹1,000–2,500) for raw LED/LC

1. ADD-
LIGHT
PRESENTATIO
NFORSSIP

2. Leader:DhairyaRiwal(I.C)
Members:DaxPatel(I.C),HarshPatel(I.C),
Neelthakkar(B.M)
Studentsfrom3rdsemester
UR MENTOR: PROF. KETAN K.ACHARYA
TEAMINTRODUCTION

3. INTRODUCTIO
N
TRADITIONALBOARDS STATIC,LABOR-INTENSIVE,
→
PAPERWASTE,ITREQUIRESMANUALREPLACEMENTOF
NOTICES.
THOSEBOARDSISNOTEFFECTIVE,ANDMAKESAVIEW
UGLYIFPLACEDWRONGLY
THOSEBOARDSGENERATETOOPLASTICFIBAR
POLLUTIONWHENCHANGINGEACHTIME

4. WHATOUR
IDEASAYS?
Replace traditional static notice boards
with a wireless digital display.
Notices, announcements, or advertisements can be
updated remotely via PC or mobile.
System consists of input device wireless module
→ →
processor/controller driver LED/LCD display.
→ →
Can handle text, images, and videos
depending on the controller used.

5. COMPARIS
ON
ADD-LIGHT OTHER
DISPLAY
MAINLYFOR
ANNOUNCEMENTS/ALERTS.
WORKSVIAMOBILE/PCINPUT.
DISPLAYSSCROLLINGCUSTOM
MESSAGES.
LOWMAINTENANCECOST.
SERVESSPECIFICCOMMUNITY.
CANBEIP-RATEDFOR
PROTECTION.
BUILTFORROUGH
Mainly for entertainment.
Works with remote and
channels.
Shows predefined media.
Higher recurring cost.
Targets general audience.
No IP rating.
Not suitable for rough outdoor
use.
Fixed internal functions.

6. Mobile/PC Input Wireless Module
Processor/Controler
Display Driver Circuit
LED/LCD SCREEN
----->
-->
----->
---
-->
BLOCK
DIAGRAM

7. Description
of
Block

8. Description of Block diagram
Wireless module
PC controller
User creates or selects content
(text, images, video).
•Sends it via Wi-
Fi,
Bluetooth, or 4G
network.
•Receives content from
the user device in real-
time.
Enables remote
updates without manual
intervention.
WIFIMODULE
ESP8266
TRANSCEIVER,
ESP-01

9. Description of Block diagram
Controller
PROCESSOR
•Converts
received
data into
commands
the display can
understand.
Handles simple
text or complex
multimedia
depending
on the controller.
•It executes commands
from
the processor and
manages complex
media or multiple
display outputs.
RASPBERRYPI
4
ESP32
MCU

10. Description of Block diagram
Digital Screen
Driver Circuit
•Converts
processor
/controller
signals
into screen-
compatible
format.
•Screen will
show
whatever
advertisement
we want to
show on it
LEDSCREEN
HDMI
driver
circuit

11. Approx cost for product

12. A rough per-unit cost:
LED/LCD Screen: ₹6,000 – ₹20,000 (size-dependent;
e.g. 24″ TVs ~₹6–7k, 43″ ~₹19k).
Controller: Raspberry Pi 4 (₹700–1,200).
Driver Board: ₹1,000 – ₹2,500 (depending on screen).
Power Supply: ₹800 – ₹1,200.
Miscellaneous: Wires, PCB, casing, connectors (~₹2,000–3,000).
Estimated Total: ~₹12,000 – ₹25,000 per display. (Higher sizes or robust outdoor
enclosures could cost more.)

13. Digital screens can guide passengers
with live schedules, announcements,
and promotions. They grab attention
easily in high-traffic areas like
airports, bus stands, and railway
stations.
Stores use them to showcase offers,
discounts, or new arrivals in real
time. This boosts customer
engagement and drives impulse
buying
Centralized displays advertise
multiple brands, upcoming events, or
directions. They enhance mall
ambience while providing valuable
promotions.
Large-format digital billboards attract
massive public attention with
dynamic, eye-catching ads visible day
and night.
Replace notice boards with digital
updates, event notices, and
awareness campaigns.
Public Transport (e.g., Auto
Rickshaws, Buses) – Mobile digital
screens showing ads across the city,
reaching diverse daily commuters.
01 02 03
05
04 06
Application for the product

14. ADVANTAGES
AND
DISADVANTAGE
S
ADVANTA
GES
• Dynamic
• Easy to update
• Interactive Capabilities
• Environment Friendly
• Cost effective in long run
• Modern appeal
• Asthetic looks
DISADVANTAG
ES
• High initial cost
• Shorter lifespan
• Technical faults

15. 95%
This portable digital screen replaces traditional notice boards with a faster, real-time
solution. It’s low-maintenance, adaptable for schools, malls, transport hubs, and
businesses. At an estimated 15,000, it’s affordable and practical. Overall, it efficiently
₹
meets communication and promotional needs.
SUCCESSRATE

16. THANK
YOU
VERY
MUCH!