Thank you so much Mr. Meissner for this detailed and clear answer..you helped me to proceed to the next step...I really appreciate your help... now i will start working on USB serial connection method it seems the easiest one..
Thank you again 
Thank you so much Mr. Meissner for this detailed and clear answer..you helped me to proceed to the next step...I really appreciate your help... now i will start working on USB serial connection method it seems the easiest one..
Thank you again