SMART NOTICE BOARD

Abstract

A notice board is an essential component of 
every public space, including parks, train 
stations, and bus stops. However, it takes a lot 
of work to send out different alerts every day. 
The advanced notice board is the subject of 
this project. It offers an SMS-based notice 
board that uses the widely utilized GSM to 
enable message display on the noticeboard via 
a user's mobile phone. Its functioning is based 
on an assembly language-programmed 
microcontroller, the AT89c52. AT instructions 
are used to connect a SIM300 GSM modem 
with a SIM card to the microcontroller's ports. 
When an SMS is sent from a mobile phone 
using a registered number, the SIM300 GSM 
modem at the recipient's end receives it. The 
SIM300 and microcontroller are properly 
interfaced. So, the microcontroller receives the 
message. It is furthermore shown on an 
electronic notice board that has an LCD 
display connected to a microprocessor that is 
supplied by a controlled mains power source. 
Our real-time noticing experiment is this 
project.