This is the latest revision to the Arduino-based instrument (Altimeter/VSI). The altimeter and VSI are working along with the baro adjustment. It's very accurate. The VSI has a bar graph on the left side and seems to function nicely. The baro adjustment is in the lower right corner with the altitude in the upper left. Initial flight tests look good. The graphics have a ways to go so for now, I'm just going to install in the airplane as is and use it for awhile and see what's next. I'll probably get on the AI next and then once that is working then work on polishing everything up. Sorry for the lousy picture.