We are working on a project to integrate a speed sensor on arducopter to calculate the speed and thus the energy consumption in horizontal flight. The only downside is that the arducopter code doesn’t integrate a speed sensor. We came up with the idea of faking that the speed sensor is a range finder just to extract data and process it later. We are using a hot wire sensor that is read by the range finder parameters. This works fine but we also need to collect data concerning the temperature change of the air. We looked into this and noticed that it is possible to connect a second range finder. But we can’t figure out how we can display the parameters on a graph. Does anyone know how we could do this ?