+ "Separate openscad into drawing and data files"
+ (list "programming guide to the challenge"
+ (list
+ "experiments and self test 2 page 4 of 15"
+ "code is incomplete, needs int led = 13 and setup() too")
+ "code in programming guide hard to read, make bigger")
+ "make challenge for blinking based on how far away hand is"
+ "get gyroscopes"
+ "change turnaround to spin_left and spin_right"
+ "remove \"forward_speed\" and \"stop_speed\" from g_follow"
+ "video should show motor doesn't react to hand for left motor"