Build your own line-tracking car with this fun DIY solder kit! Once completed, the car uses two optical sensors to detect contrast between light and dark; thus, if you draw a thick line on a sheet of white paper, the car will track the line and drive around on the path you've indicated.
Build and program robots with this complete robotics engineering system. Using sensors, motors, a core controller, and hundreds of snap-together building pieces, you can follow the instuctions to assemble ten different robots. The versatile parts also allow you to make robots according to your own designs.
The Running Microbug DIY Kit circuit is built using general purpose transistors, fixed resistors, potentiometers, and light sensitive resistors that allow it to respond to the light in it's environment and react accordingly.