I have added the ultrasonic radar to my project. I tested it with the 3 different controls and can not get a full display of the scan. It shows about 55 degrees of scan and the rest of the display is black. I know the scan starts at some point below the bottom left hand side of the screen by watching the "servo" info at the bottom of the screen. The display starts to show the scan line at 40 and quits at 100. Otherwise it is working OK.