Wireless Microphone Interfacing

[yosif4444]

Hi All
Well! i have a problem

I want to send some digital data -say coming from parallel port- through a wireless microphone, well i know the steps that i have to u make to do such a thing.
1-I have to use ADC with the data coming from parallel port
2-I have to attenuate this signal till the voltage comes very small
3-I have to adjust the frequency so that it can be send,
the problem is i know all of this only in theory i want you to tell me if my thinking is right or wrong, i want to know also how can i make this with hardware, i want anyone who can give me sites or any helping material.

thanks in advance

[alamin]

I want to send some digital data -say coming from parallel port- through a wireless microphone

u wanna use parallel port to receve  or send  data ?

((wireless microphne)) !! 

Take my advice if you just wont to send or receive  sound signal leave parallel port away

and stick with sound card interface ( audio input and output)




your prother
Eng MHD Alamin

[yosif4444]

Well!, it sounds like i didn't descripe my problem well

I don't want to send any digital sound at all, i want to send binary infortmation -bytes of binary data with specific bit rate- through a wireless communication, and the only tool available to me is the wireless microphone-which is analog transmitter- so i want to convert my binary data to a form that my wireless microphone can accept. and my question is how can i do that

i hope i managed to descripe my problem this time

[alamin]

ok

firest of all u need intrface program to convert data (image -  media - whatever)

to HEX and push it  LPT port which  is can offer 8 bit of bandwidth

then u need to convert this parallel data to serial 

and then start modulate it

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on recever firest step u will  Demodulate the signal and convert information

to 4 bit parallel out (because LPT 1 have only 4 bit as input to pc)

and read this input by your interface program and convert it from HEX  to oreginal  data form


look man you don't need any DAC or ADC 
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I have a complete this project as hardware  :) and it's really big and take alnog time 

and right now am working in interface program

by using C#

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