The light sensor returns very different measurements of different colors, and the bathroom floor has lots of colors (see picture). Therefore we tried the big black thing which gives a completely different setting. Both the color of the surface (which is now black instead of blue-ish) and the consistency in the color (completely black instead of different blue-ish colors) and how even the surface is, as the black thing is very uneven.
*Figure 2: Black and grey surfaces, for comparison.*
*Figure 3: Using a box to angle the robot for calibration.*
We tried to use a box, to still work around the fact that our press effects the robot. But the box was casting a shadow. We moved it so that the light level around the robot would be the same while calibrating, leaning against the box, as while running with the box gone.
