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Wireless notice board is implemented using android -based low cost and easier. Proposed system uses the bluetooth based wireless data serial communication. A microcontroller is used at receiver end to receive the messages. The displaying messages can done in two different messages, remote digital bulletin board and wireless personal phone calling were introduced. Assembly language is used to program the microcontroller. The wireless notice board consists of two module, transmitter and receiver module. Wireless notice board are being handled in many applications. The proposed system consists of Adruino UNO Micro-controller to receive information and display on LCD. The notice boards are not updated regularly in many places due to laziness. So the relevant information is not reached to the required people in the appropriate time. This leads to many confusions and lack of information. Students face many problems if they fail to see the information in the correct time. It will be very fine if the notice board can be updated using voice commands. First, we should understand the purpose of this project. In this system we can display a message or notice to LCD, and this message can be easily set or changed from our mobile, using HC-05 Bluetooth module by our voice messages. This message can be uploaded or changed by Bluetooth app in our mobile by our voice. This will make it possible for us to deliver any message nearly immediately and without delay by using our smartphone's Bluetooth connection, which is more secure and better than the outdated traditional way of publishing messages on notice boards.
Arunarasi et al. (Wed,) studied this question.
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