Lesson5Week7.markdown

@@ -82,3 +82,9 @@ We further tried to scale all the values to Kp=800, Ki=200, Kd=1600, but this re
 
 ![Skærmbillede 2015-03-25 kl. 11.59.10](http://gitlab.au.dk/uploads/u4099/legolabtimadala/9cf9093fc2/Sk%C3%A6rmbillede_2015-03-25_kl._11.59.10.png)
 ##### Table 1: Effects of increasing a parameter independently (Wiki) [10]
+
+#### Surface color:
+Different types of surfaces was used as floor for the experiment, including a grey linoleum floor, a wooden table and white sheets of plain paper. We saw that the white surface resulted in the best results, and were therefore chosen as the general surface. The reason for this was that the detected values from the light sensor differed way more on the same place on the grey and wooden surface, as compared to to the white.
+
+![Surface ](http://gitlab.au.dk/uploads/u4099/legolabtimadala/c2a15100a1/Surface_.png)
+##### Picture 2: different types of surfaces, to the left grey linoleum, in the middle wood and to the right white A3 paper
\ No newline at end of file