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PreprintCC BY 4.0Zenodo

Design of a GSM-Based Electronic Notice Board: System Architecture, Message Validation Logic and a Verification Protocol

  • Mubarak Usman Trader1
  • Muhammad Ali Abubakar1
  1. 1Yobe State University, Damaturu, Nigeria
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Abstract

This report presents the design of a notice board that is updated remotely by SMS over the GSM network. The design combines a GSM module with a SIM card, a microcontroller, a character LCD and a regulated power supply. When an SMS arrives, the controller checks that the sender is authorised and that the message follows a set format and length limit before it replaces the displayed notice. Invalid messages leave the current notice unchanged. The report covers the architecture, interfacing issues for power and serial logic levels, the message handling algorithm, a layered security approach and a verification protocol of eight tests. It is a design report from an undergraduate project, and no measurements from a working prototype are reported.

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Cite

BibTeXRIS
BibTeX
@misc{trader2026design,
  title = {{Design of a GSM-Based Electronic Notice Board: System Architecture, Message Validation Logic and a Verification Protocol}},
  author = {Mubarak Usman Trader and Muhammad Ali Abubakar},
  howpublished = {Zenodo},
  year = {2026},
  month = oct,
  doi = {10.5281/zenodo.23420099},
  url = {https://zenodo.org/records/23420099},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Design of a GSM-Based Electronic Notice Board: System Architecture, Message Validation Logic and a Verification Protocol
AU  - Mubarak Usman Trader
AU  - Muhammad Ali Abubakar
PY  - 2026
DA  - 2026/10/16
PB  - Zenodo
DO  - 10.5281/zenodo.23420099
UR  - https://zenodo.org/records/23420099
AB  - This report presents the design of a notice board that is updated remotely by SMS over the GSM network. The design combines a GSM module with a SIM card, a microcontroller, a character LCD and a regulated power supply. When an SMS arrives, the controller checks that the sender is authorised and that the message follows a set format and length limit before it replaces the displayed notice. Invalid messages leave the current notice unchanged. The report covers the architecture, interfacing issues for power and serial logic levels, the message handling algorithm, a layered security approach and a verification protocol of eight tests. It is a design report from an undergraduate project, and no measurements from a working prototype are reported.
ER  -