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embedded based restaurant automation

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monisha.ai

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hi....
i require a code written in 8051 'c' that involves th following function
the data on th lcd has to b transmitted using RF:-D
 

It is simply not possible to give you a solution with few words and somebody can guide you how to write and it will be difficult to give you a complete solution.

1. When you are writing to a LCD, the same data needs to be sent to a RF transceiver for transmission.
2. Generally a transceiver has a serial port for interfacing with controllers, if you are using the same solution, you need to know how to send data over serial port of that controller...
 

i need to transmitt the data through rf............some numbers given through keypad will be displayed on lcd and know when enter key is pressed all the numbers that is displayed on lcd has to be transmitted serially through rf.......

Help me for writing the code in 8051 'c'........
 

As dharanidhar said, some of the RF transmitter have UART interface. So, your controller will send the data to the RF transmitter through this serial interface and, in turns your RF transmitter will transmit the data.
Check this RF transmitter, it may give you a clue.
RF Link Transmitter - 434MHz - SparkFun Electronics

What is the model number of your RF transmitter?
 

Can't write the entire program here but can guide you in writing the program...

1. when you are typing the data from keypad try to collect all the dat into an array.
2. Once you press the enter key try to put the data into transmit buffer register of UART (this uart must be connected to your RF module)
3. You must also configure the serial port (UART) of your 8051 before doing all this...

You can Programming 8051 by MAZIDI....that will be very helpful
 

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