International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 10 | Oct 2024
p-ISSN: 2395-0072
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WIRELESS NOTICE BOARD USING MICROCONTROLLER WITH GSM MODULE N.Vimala1, S.Girinath2, S.N.Raghunandhan3, S.P. Pragathess4 1 Senior Lecturer, Department of ECE, Nanjiah Lingammal Polytechnic College, Mettupalayam, Tamilnadu, India 2,3,4 Students, Department of ECE, Nanjiah Lingammal Polytechnic College, Mettupalayam, Tamilnadu, India
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Abstract: Notice board is also known as bulletin board or message board, is physical or digital display used for posting and sharing information, announcement and messages. It is mainly used for Communicating important updates, provides information, display remainders, sharing news, and facilitate communication. Notice board could be a primary factor in any establishment or public places like bus stations, railway stations, colleges, and malls etc. In recent days there are many types of notice board are in daily use. Among that Wireless LED notice board plays a important role in noticing the information to peoples by easy. The main uses of LED notice board is public can read the information easily by means this LED. During night condition it is very clear. This paper is about making the wireless notice board to share the information easily by digital. By this design people can be easily understood the information. Here microcontroller is used to display the information what we want and display the information with proper time delay. By using this design human effort will be reduced and cost will be reduced.
can be added as a variation in this project. This can be achieved by using graphics and other decoding techniques. We can also able to store messages for long time by using SD memory card. By using this system we can change message in the notice board can be changed from anywhere, cost low, hardware requirement less, power consumption low. 1.1. LITERATURE REVIEW: + From journal: IRE Journals- Iconic Research and Engineering Journals | Volume 1| Issue 12| ISSN: 24568880 + In the above journal they used PIC microcontroller for process.
2. METHODOLOGY: This system uses GSM module, AT- mega 328p microcontroller, LED Matrix, Shift registers, IC ULN 2803. In this system it is used to display the message by using a GSM module. By using mobile phone, the message send to GSM module GSM Module consists of SIM card, GSM module’s sim accept the text message from the mobile phone GSM module sensed it and display it in LED matrix. SMPS is used to power the LED Matrix , LED matrix is driven by LED driver. In this system Shift register is used to shift the data from microcontroller depends upon the program. Mobile phone is used for sending text message to GSM to display. Local language can be displayed in this notice board and it is done by decoding techniques.
1. INTRODUCTION: Nowadays conveying messages at large using notice boards are widely used ones ranging from schools to organizations, we know the significance of notice boards in public areas like bus stands, railway stations, airports, and banks, etc., Now-a-days LED message scrolling displays are very popular. The problem of this display is to carry a computer for generating and sending message to LED moving display board and day to day changing these boards is a very difficult task and a waste of time. At present, all electronic boards are designed with a wired system, The major drawback of designing these boards is; not flexible and cannot be located anywhere due to messy wire. By using wired electronic system power consumption is high. To overcome this problem GSM mobile phone is used instead of computer for generating and sending message to LED display. A text message is typed in the GSM mobile and sends it by using SMS service of the mobile to LED display. Arduino board with Atmel 328P microcontroller is connected to LED display to send the message. Message can be changed in the LED display (notice board) from anywhere. The display boards are one of the major communicating medium for mass media. Local language
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3. PROBLEM SOLVEMENT: In the above literature review, they used PIC microcontroller for process due to using this, program length is too long and it is hard to program and cost high.
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