The basic block diagram mainly consisting a transmitter stage & receiver stage.Mobile phone will acts as transmitter & microcontroller will acts as receiver. The Data transmission between transmitter & receiver is taking through the Bluetooth module. The status from the relay is transmitted to mobile through Bluetooth module and process of controlling is taking place in mobile phone which is our controller.
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Here Bluetooth module and mobile phone will act as a trans receiver. Mobile phone will give instruction to microcontroller through Bluetooth module. For controlling the relay circuit and it will receive information from microcontroller through Bluetooth module about the status of the relay. The Bluetooth module will receive data from both mobile phone & microcontroller. The Blue SMIRF V.2.11 bluetooth module is used here.Mobile phone operation will control by the python software which is installed in the mobile phone. The relay is controlled by the programmed AT 89c2051 microcontroller. ULN2803 is the IC we are using to drive the relay.Bluetooth module cannot receive information parallelly. So the parallel information must convert to serial data. So a SIP is used which convert the parallel datafrom relay driver to serial data.The instruction from mobile phone will receive by Bluetooth module and transfer in to microcontroller and the microcontroller will send this data to relay driver and will control the relay. The relay will send the status to micro controller and will convert data in to serial and transfer it to mobile phone through Bluetooth module.
PCB LAYOUT
ADVANTAGES
Cost effective and time efficient
Provides better security
Easy to construct and install
Consumes less energy and is more efficient
Increases the overall efficiency of the system
Works at higher speed
Has wider range of applications
APPLICATIONS
Used in communication industry
Used in process control industries
Used in defence
Used in domestic and industrial applications
Used in Data loggers
Used in the R & D industries
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