If you have read about My first navigation bot, you may recall I wasn’t quite ready to program my robot, as I couldn’t quite understand the ADC, so my dad did it for me. Well now, I getting the grasp of microcontrollers and I have even made a filter for my sensor to filter out noise and improve the range of my infrared reflective sensor. My dad had a whack at that earlier, but my filter picked up objects over 1 and a half times as far, and with little or no noise picked up. YAHOO!