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unboxing & build a D2-1 Intelligent Tracking Car Kit

LM393 comparing two photosensitive resistance, when the imbalance (eg side pressure runway black) immediately control side of the motor stops

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D2-1 DIY Kit Intelligent Tracking Line Smart Car Kit TT Motor

D2-1 DIY Kit Intelligent Tracking Line Smart Car Kit TT Motor

D2-1 DIY Kit Intelligent Tracking Line Smart Car Kit TT Motor