D2-1 DIY Kit Intelligent Tracking Line Smart Car Kit

After successful installation, the trolley can move along the black track with a width of about 15mm. The circuit consists of photoelectric sensing, voltage comparison and motor drive. The photoluminescence resistance of the photoluminescence resistor will change when it is projected to black and white parts with different reflectivity. LM393 compares the size of two photosensitive resistors, controls the operation of the two sides of the motor, so as to correct the direction of the trolley and ensure that the car moves along the black track. The motor is equipped with a speed reduction device. Do not rotate vigorously with your hands to prevent damage. Classroom Size Lesson Kit, Learning Kits & Wireless Blocks. Educational Box. Intelligent and Educational Toy Robotic Kit. Wireless Course Kit.

Features of this Product:

• After successful installation, the trolley can move along the black track with a width of about 15mm.
• The circuit consists of photoelectric sensing, voltage comparison and motor drive.
• The photoluminescence resistance of the photoluminescence resistor will change when it is projected to black and white parts with different reflectivity.
• LM393 compares the size of two photosensitive resistors, controls the operation of the two sides of the motor, so as to correct the direction of the trolley and ensure that the car moves along the black track.
• The motor is equipped with a speed reduction device. Do not rotate vigorously with your hands to prevent damage.

Specifications:

• Power: two AA batteries (not included)
• Installation size: 105x85x46mm/4.13x3.34x1.81''
• Weight: 124g

Contents:

• 1x D2-1 DIY Kit Intelligent Tracking Line Smart Car Kit

Shipping

• We ship to Canada via Canada Post and Purolator, to USA via USPS and Fedex and to other destinations via USPS and Fedex.
• Shipping to US via  USPS mail.
• Shipping to Canada via  Expedited  service Canada post (3-5 working days).       
• Canadian customers pay 5%GST extra!
• We do ship internationally.
• Payment must be made within 7 days after auction closing.
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• Shipping times are approximate estimates.
• Unpaid item disputes will be filed for non-paying bidders.
• If you are not 100% satisfied with your purchase for any reason, simply return the product back in its original condition within 30 days for a full refund.
• Shipping is no refundable (Please request an RMA to do so). Buyer pays the return fees.
• In the event of faulty product, inform us within 30 days. A Return Merchant Authorization (RMA) will be issued and return instructions will be provided. A replacement will be sent once the defective item is received.

International Shipping  

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Return and Warranty

• This Product has 1 year Warranty.
• Returns are accepted within 30 days after order is received.
• Product must be in saleable condition to qualify for a refund.