IOT BASED DIGITAL LED SCROLLING NOTICE BOARD (KEY IJP************118)

• 1dr M.v. Sruthi, L. Haritha, B.n Sai Sahithya, A. Kalyani,g. Vyshnavi,d. Sindhu

Abstract

Abstract IOT based LED scrolling notice board Provides the user to display text on LED IOT panel. And also it facilitate remote access using IoT technology. Key components include the P10 Red LED Display Panel Module, an SMPS power supply, and an NodeMCU microcontroller. For software development programmed in C++ using the Arduino IDE. Communication is facilitated through the MQTT (Message Queuing Telemetry Transport) protocol, ensuring efficient data exchange. The P10 Red LED Display Panel Module serves as the vibrant visual interface, capturing attention with scrolling messages. The SMPS power supply ensures system-wide reliability and stability, contributing to enhanced durability. Acting as the system's central processing unit, the NodeMCU microcontroller executes programmed logic for message retrieval and display control and easy customization through C++ programming. To enable remote control and real-time updates, MQTT protocol implementation facilitates smooth information exchange between the NodeMCU microcontroller and the user interface. An Android app, developed for user-friendly interaction, communicates with the NodeMCU via MQTT. Its integration of advanced hardware components, efficient communication protocols, and user-friendly interfaces positions. The entire system will developed in our laboratory and will test its functioning. Keywords IoT, MQTT, Arduino IDE, NodeMCU Microcontroller Introduction