Integrated IoT Based Smart Notice Board.

Abstract

The Wireless Smart Notice Board using Arduino and IoT is an innovative project designed to modernize the traditional notice board by enabling remote communication and dynamic message display. This system leverages Arduino microcontroller technology, Bluetooth connectivity, and IoT principles to offer a user-friendly and efficient platform for message dissemination in schools, offices, hospitals, and public spaces.The core components of the project include the DHT11 Humidity and Temperature Sensor module, the HC-05 Bluetooth module, a JHD 16x2 Character LCD Display, USB A-B cable, and male-to-male jumper wires for circuit connections. The DHT11 sensor measures environmental parameters such as temperature and humidity, which are displayed alongside messages to provide real-time contextual information. The HC-05 Bluetooth module facilitates wireless communication between a smartphone or computer and the Arduino Uno microcontroller, enabling users to update the notice board content remotely. The JHD 16x2 LCD serves as the display interface, showing the messages and sensor data clearly and efficiently.The system operates seamlessly by pairing a Bluetooth-enabled device with the HC-05 module. A custom application or terminal software is used to send textual data to the Arduino, which processes the input and updates the display on the LCD module. The integration of the DHT11 sensor enhances the functionality by offering additional insights into the surrounding environment, which can be particularly useful in settings like hospitals or laboratories. The USB A-B cable is used for programming the Arduino, while jumper wires ensure secure connections among components.This wireless smart notice board minimizes manual intervention and eliminates the need for printed notices, making it environmentally friendly and cost-effective. Its modular design ensures scalability, allowing future enhancements such as Wi-Fi connectivity, advanced display modules, or integration with cloud platforms for centralized control. Overall, the project demonstrates a practical application of Arduino and IoT technologies, promoting automation, sustainability, and convenience in modern communication system

Keywords: IoT, Smart Notice Board, Wi-Fi