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Smart Car DSmart Car DIY Kit, IY Kit, Quickly Intelligent Tracking Car Kit,  Voltage Comparator For Home School

<ul><li>This smart tracking car DIY kit can help you be familiar with mechanisms and learn about photoelectric sensor, voltage comparator, motor drive circuit and other related electronic knowledge in the process of assembling</li><li>Photosensitive resistor can detect the strength of the external light, the stronger the outside light, the smaller resistance will be. When red LED light is projected onto a white area and a black area, due to different reflective rate, photosensitive re</li></ul>

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Specification: Features: This smart tracking car DIY kit can help you be familiar with mechanisms and learn about photoelectric sensor, voltage comparator, motor drive circuit and other related electronic knowledge in the process of assembling. Photosensitive resistor can detect the strength of the external light, the stronger the outside light, the smaller resistance will be. When red LED light is projected onto a white area and a black area, due to different reflective rate, photosensitive resistance will be different, which is convenient for follow-up circuit controlling. LM393 is dual-channel voltage comparator integrated circuit, composed of two independent voltage comparator. It is used to compare two input voltage, and change output voltage according to input voltage. Special made motor has reduction gear and greatly reduces difficulty, which is very suitable for use. LM393 compare two photosensitive resistance, and stop one side motor when the resistance appears imbalance, the other side motor rotate faster to get car back to the right direction. The whole process is a closed- control, so it can control quickly and sensitively. Assembling Instruction: Step 1: Welding circuit Electric welding part is simpler, welding sequence according to the principle of component level from low to high, the first welding eight resistance, is important to use multi meter to confirm resistance is correct. Step 2: Mechanical assembly The red line is connected to the 3V positive power supply, the yellow line grounding, excess wire can be used for motor wire. Step 3: The installation of a photoelectric circuit Photosensitive resistance and light-emitting diodes note polarity is reverse-mounted on the PCB, and the ground distance is about 5 mm, both photosensitive resistance and light-emitting diodes are 5 mm distance. Finally, you can power test. Step 4: Vehicle debugging The right direction is along the universal wheel direction, if you press and hold the left photo resistor, the wheels on the right side of the car should be rotated. Press and hold the right photo resistor, the wheels on the left side of the car should be rotated, if the car driving back, can also exchange the wiring of two motors, if the one side normal and the other side back up, as long as you can swap wiring of back side. Package Includes: 1 x Smart Car DIY Set Disassembled Parts Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.

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