This is the first prototype and the video shows how to solve Mission
M01. It is the first video in this playlist where several missions are solved.
How to connect the motors and sensor
Port A: Front M-motor.
Port B: Left XL-motor.
Port C: Right XL-motor.
Port D: Front XL-motor.
Port 1: Color sensor.
Update: LEGO Digital Designer (LDD) file available
DLuders has created a LDD version of this robot. It is available here: http://c-mt.dk/instructions/lxf/fll_prototype1.lxf