nxt camera following

all speaking for itself we think......(nxt is provided with a felt-tipped pen)
he will become a great artist this nxt
:-)

the prog has 2 modes: one displaying the light source on the screen, for checking what the nxt "sees". This is not very predictable from our human point of view. The second mode, if the responses are adequate, is direct reactions of the two motors to visual input.

left right movements are just seeing the source left right
forward backwards is done by detecting the source above or under the middle of the field of vision.

The movements should become more smooth.