Thanks peter, I will look into the url you sent.

Meanwhile I sorted out the problem with Ir receiver unit, I had no data for IR receiver I was using, and was trying on 40~50KHz. Finally after a lot of trial and error, I found it works well at 33KHz carrier. Right now it is working okay upto 20 feet. and I will make it to work upto 30 feet as I have some code modifications in my mind.

Peter I just posted another question, "Current to Volts & A/D". Please read this and help me making this project as this would give me another start after a long break.

Thanks,

Rauf