Witty User Manual - EN - v1.5 P. 73 / 171
Direction: Choose Forwards Only or Forwards/Backwards; in the first case, the
traffic lights that will have to be "turned off" are the ones in front of the
athlete (e.g. B, C, D, E in the figure above), whereas by choosing
Forwards/Backwards the start (A) traffic light must be switched off,
otherwise for each touch the athlete will have to go back to touch the
base one (B-A, C-A, D-A, etc.); the start traffic light at the base must
always be the one with the lowest letter index.
Colours It indicates the colour (green, red or blue) shown