D2-5 DIY Line-Following Robot Car Kit

Build a small line-following car from electronic and mechanical parts. The D2-5 kit combines a circuit board, motors, wheels and sensors for a hands-on project that connects circuit assembly with visible movement.

Build the circuit and see it steer

• ✅ Work with separate components. Assemble the supplied board and parts rather than starting with a finished toy car.
• ✅ See a sensor-controlled response. The photoresistor circuit compares light levels and controls the two motors to follow a contrasting line.
• ✅ Explore the moving assembly. Motors, wheels and a battery holder show how the electronic circuit drives the car.

The circuit uses an LM393 comparator with two photoresistors and separate motor paths. After assembly and adjustment, the car is intended to follow a dark line on a lighter surface.

This option supplies parts and requires assembly and soldering. It is not a ready-to-run car or a remote-controlled model. Batteries and soldering equipment are not included.

The kit supplies unassembled parts; the completed car illustrates assembly. Batteries, track and soldering equipment are not included.

Technical details

• Model: D2-5
• Type: DIY line-following car parts kit
• Control circuit: LM393 comparator with photoresistors
• Drive: two motors and wheels
• Battery holder: two-cell holder
• Approximate assembled footprint: 105 × 70 mm
• Assembly and soldering: required
• Batteries: not included

Choose the D2-5 kit and build a circuit you can watch in motion.