The line-tracking mouse is an excellent, low-cost robot
for someone who has previous soldering experience and would like to get started
with robots. This kit features two independent gearboxes, two printed circuit
boards, a plywood base, and a clear, mouse-shaped body.
This kit includes three infrared sensors along the bottom
of the robot and a microphone that allows you to start the robot by clapping or
tapping its body. Three LEDs show you what the robot "sees", and two
other LEDs light up when their corresponding motors are on. The mouse runs off
of four AA batteries.