Linear LED Lighting  

The latest robot to hit the market is the Line Tracking Snail Robot Kit. The robot comes with a transparent body and a circular rear, which makes it look like a snail. The robot depends on a special LED sensor, which detects a black line on a white background. The sensors can identify darker particles against a lighter background. However, the robot wouldn¡¯t be able to move straight if it does not have a straight line to follow. Two small motors are all that it uses and the rubber tires move forward and backward and turn as well. However, the tires move at a very slow speed just as a snail would. The robot snail is constructed with transparent plastic, also known as HIPS, which allows you to observe the mechanism inside the snail robot. As it doesn¡¯t require soldering, even young children can use them. This could have recreational as well as educational benefits. A Snail Robot Kit costs $29.95.