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ABSTRACT
The purpose of the suggested system is to give users a quick, dependable, and easy means to post vital notices in an LED. Users can transmit messages to be displayed in the LED. A Google Assistant application created for this suggested system can send the message via the WiFi module.Therefore,announcements can be posted in an LED display fom distance not less than 15meters with wifi connectivity. It communicates via WiFi-based technology, a microcontroller for sstem control, and the Google Assistant app to send the message. A WiFi module,LED,and Google Assistant application software (LedArt) as the proposed system's user interface. This device can be utilized everywhere, regardless of deployment location, as long as mobile network connectivity is present. It has three sections: power, control, and display. There device is divided into hardware and software, the hardware part comprises the powersupply unit which is usedto power the display board, the HD-W03 wifi module which is employed for wifi technology,a microcontroller which act as the brain of the entire work and lastly the light emitting diode which is arranged in matrixes of 16 row and 32 columns. The software is a google application software (LedArt), the application that is used to send message to the wifi module (HD-W03 controller).Aluminum rod,ACO Board,and transparent plastic that covers the front and rear of the device have been bolted and riveted together to form the display system's housing.When connected to an electrical outlet, the systen immediately turns on.
