D2-1 Intelligent Tracking Line Smart Car Kit Description: LM393 is a dual voltage comparator integrated circuit, using photosensitive resistance device, with gear reduction, easy to control, widely used in experiment, industry, school, electronic DIY, robots, remote control cars etc. Features: 1. Using photosensitive resistance device, high sensitivity and stable performance. 2. LM393 is a dual voltage comparator integrated circuit, which consists of two independent precision voltage comparator. 3. Complete smart tracking line car kit, easy to install. 4. DC motor with gear reduction, easy to control. 5. Widely used in experiment, industry, school, electronic DIY, robots, remote control cars etc. Specifications: Model: D2-1 Color: blue & yellow Device: Photosensitive resistance Motor: DC motor with gear reduction Package Included: 1 x DIY D2-1 line follower smart robot (diy parts) 1 x Instruction (Chinese language) - please see auction pics Instructions/schematic are NOT included. We don't provide technical assistance please make sure that you are familiar with the product before purchasing.