can I get programme for 89c51 for the circuit -: 4 channel
programmable FM remote control :-
>...the abstract of the project is given below....
>
>
>This is programmable FM remote control can be used for some specific
>applications. Phase Lock Loop (PLL) IC-567 is used in transmitter and
>receiver part as oscillator and filter respectively. It can operate/
>control any device / application from the distance of around 50 meter
>(this range can be increased up to 1-2 Km if good transmitter is
>used).
>
>A Phase Lock Loop (PLL) IC 567 is utilized in both transmitter as well
>as receiver part. In the Tx part IC-567 is configured such that it
>work as variable frequency oscillator. It generate four different
>frequencies. Standard FM mike (cordless mike) is used as FM
>transmitter which is used to modulate these 4 frequencies. At
>receiving side FM radio (which works as FM demodulator) demodulates
>the signal. Four different IC-567 all are configured as PLL to pass
>four different frequencies generated by Tx. At last signal will be
>given to micro-controller to perform some specific task.
>
>Note:- The typical design limits the number of channels to 4 only
>because the filters used at receiving end cannot differentiate more
>frequencies. However 4 channels are enough for some specific
>industrial application. Here I have developed a programmebale digital stop
watch. .
REFERENCE:
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