Additional LED tachometer uses OpenXC
Pete has bought new car and he wanted to build his own tachometer which would be more visible. So he built a LED ring based tachometer called Blueshift. The name already tells that data to tachometer is coming over bluetooth. Things become easy because new cars like Ford Fiesta is equipped with OpenXC API that is used by Android devices. It simply packs car diagnostic information in to JSON API which can be accessed via bluetooth. So Arduino with bluetooth module can capture this data and parse it to get tachometer data which then can be used to indicate on RGB LED ring. To make this indicator look great inside new car, he 3D printed nice enclosure which can be attached to front window. It obviously makes easier to see it with peripheral vision that looking at panel. And also it looks cool. Continue reading