Did I satisfy the inquisitive? I hope so because I'd like to move on. I would really like to learn and I am driven. I would like to know how to connect a microphone to 16F84(A)... I want to build a robot who could hear though speech recognition is still out of the topic for the moment. If I could still be guaranteed of any help, then I would gladly start another thread regrading this matter. Thanks you.