ARDUINO-BASED DIGITAL NOTICE BOARD USING ANDROID PHONES

Abstract

Notice Board is an exceptional fundamental gadget in any institution or public utility places like bus stations, railway stations, shopping centers, etc. But disseminating information by pasting various notices day-to-day is not appealing because it requires a separate person to take care of it. This paper provides a way of disseminating information on an electronic notice board wirelessly using Bluetooth technology, which provides user authentication to avoid the misuse of the system. The notice can be composed either by text or speech using Google ‘Speech-to-text’ technology. The design and implementation were achieved using Arduino UNO microcontroller. In addition to the normal information that can be displayed on the notice board, date, time and temperature of the environment can also be displayed using DS3231 RTC. A dedicated Android phone is used for composing, updating and sending information to the electronic notice board. The program for the system was coded in C/C++ using Arduino integrated development environment. The result shows considerable gain in confidentiality, security, reliability and reduction in cost.