yosif4444 Posted October 15, 2006 Report Share Posted October 15, 2006 Hi AllWell! i have a problemI 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 small3-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 Quote Link to comment Share on other sites More sharing options...
alamin Posted October 15, 2006 Report Share Posted October 15, 2006 I want to send some digital data -say coming from parallel port- through a wireless microphoneu 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 awayand stick with sound card interface ( audio input and output)your prother Eng MHD Alamin Quote Link to comment Share on other sites More sharing options...
yosif4444 Posted October 16, 2006 Author Report Share Posted October 16, 2006 Well!, it sounds like i didn't descripe my problem wellI 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 thati hope i managed to descripe my problem this time Quote Link to comment Share on other sites More sharing options...
alamin Posted October 16, 2006 Report Share Posted October 16, 2006 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 -------------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 --------------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# -------------- Quote Link to comment Share on other sites More sharing options...
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