Development of a Voice and SMS Controlled Dot Matrix Display Based Smart Noticing System with RF Transceiver and GSM Modem

The noticeboard is a primary thing in any institution or organization to disperse information among the stakeholders. In the busy and fast moving world today, conventional sticking paper notice system is time-consuming and not suitable for quick sharing of information. This paper represents a smart electronic remote noticing system where an authorized accountable person can share information in the notice board anytime from his office room or any places in the world having the cellular network. In the proposed system, notice can be sent in two ways. The user can update notice from his office room either by voice or text message via a smartphone using Bluetooth and RF communication within 1-kilometer distance. In this way, the user sent notice using his own local wireless network and should not pay money to any operator. Another way to update notice by sending SMS using mobile network when the user stays outside of his office room. In this way, the user has to pay SMS charge to the mobile operator. The notices sent by the user are scrolled in a 32X8 LED matrix display. The system can show current notice with two previous notices. It also gives a notification by a buzzer when a new notice is received. This smart notice board can make noticing system of an organization much simple, fast and cost-effective.