Lego Loom

Uses an RCX, 6 motors, 3 light + 3 touch sensors. Software sequences the 4 peg patterns, such as 1, 2, 3, 4, 1, 4, 3, 2, etc. A message from the Lego remote control pauses the software so that it continues at the correct place in the sequence after the bobbins are replaced. If the shuttle doesn t make it across in time (tangled (rare )), the software pauses and keeps place until the human fixes it and sends the message to continue.