The 21-883 Hexapod Monster Kit by Elenco is a robot that uses an infrared emitting diode for its eyes, and moves by its six legs. Soldering Required. Requires one 9V and two AA batteries. Ages 14 & UP.

The hexapod monster is a six-legged robot that walks forward until it detects an obstacle, in which case it backs up and turns before resuming its forward motion. There is a separate gearbox for each side of the robot, allowing for differential control of the robot’s motion. Obstacle detection is performed through an infrared sensor at the front of the robot.

The kit consists of four die-cut and painted plywood panels, a printed circuit board, two motors and gearboxes, battery holders, and all necessary hardware and components. The robot runs off of two AA batteries (motors) and a 9V battery (sensor electronics).