I need to read a few sensors for an automotive application. I have learned to be very afraid when connecting anything from the outside world directly to a leg on an avr using copper. People (including me) do all sorts of stupid things and the avr is usually the most PIA to replace. What does everybody else use to buffer an analog input? An op amp with a gain of 1:1? Any other ideas?
Joined: Sat. Nov 27, 2004
Posts: 187 View posts