RF based Wireless NOTICE board

UNDER THE ESTEEMED GUIDANCE OF

K. SHANKARASST PROFESSOR LIET

PROJECT ASSOCIATES

T.S.P.BALAJI SHARMA(12KD1A0286)M.MOHANRAJESH(12KD1A0257)

P.LAXMI PADMAJA(12KD1A0270)B.SAI DURGA PRASAD(13KD5A0204)

ABSTRACTScrolling display board is a common sight today. The use of led scrolling display board at big shops, shopping centers, railway station, bus stands and educational institutions are becoming an effective mode of communication in providing information to the people. But the Display Board cannot be placed anywhere because of complex and delicate wiring.

The aim of the project is to design a wireless information transfer to an electronic notice board. It is used to transfer the message to required place without using a direct wired connection to the display board. So as to transmit the message RF control system is the technique used as it is optimum system both economically and in range of usage. This is designed to provide the flexibility to the user to pass the message. The wireless system using RF needs two modules priory. They are: TRANSMITTER and RECEIVER modules. The Transmitter section consists of PC OR LAPTOP, Arduino uno board, and a RF transmitter. Arduino is used to control the transmitter section and perform the transmission. In the similar way to the transmission there is also Receiver section. This is the inverse operation to transmitter where we display the message transmitted by transmitter using a LCD display or a DOT matrix display unit is required along with a Arduino.

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Why electronic notice board???• To reduce the human efforts• Multiple tasking• To minimize the time factor • Easy to upgrade

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Required components

RF Transmitter & Receiver( 434MHZ)

ARDUINO UNO

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Block DiagramTransmission Section:-

Receiving Section:-

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Operation Of the Wireless notice board

Dump the program to the Arduino UNO, and interface the Arduino board to the circuit designed. Once the circuit is complete then we connect the pc to the Kit with the help of the serial slot and through a serial monitor we give the Text message to the transmission section then the digital data is converted to the analog and transmitted.

Then the receiver section will receive the analog data and convert it to digital form and display the text in the Display LCD 16X2 as provided.

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CIRCUIT DIAGRAM IN PROTUES

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CIRCUIT CONSTRUCTION

Fig: Transmitter circuit

Fig: Receiver circuit

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INPUT: OUTPUT:

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Thank You One and All

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