Pathfinder Robot Kit 'Blinky'

This amazing robot sees and follows a straight or curved path YOU make with a black marker or tape. Make the path as simple or complex as YOU want. The infrared emitter and light sensor circuit controls a servo feedback loop causing the motors to make course corrections: red and green LEDs blink to display changes in direction. Principles of electro-optics, analog and digital circuitry and more are covered in the 28 page Instruction Manual. Illustrated assembly instructions, many schematic and block diagrams, quiz and troubleshooting guide complete the Manual. Requires one 9V and two AA batteries (not included).