Smart Robot tracking car kits Components Specification Quantity Voltage Comparator LM393 1 IC Socket 8-pin 1 Electrolytic Capacitor 100uF 2 Adjustable Resistor 10K 2 Color Ring Resistor 3.3K ohm 2 Color Ring Resistor 51 ohm 4 Color Ring Resistor 1K ohm 2 Color Ring Resistor 10 ohm 2 Photoresistor CDS5 2 LED 3mm 2 LED 5mm 2 Triode 8550 2 Switch 1 Reduction Motor JD3-100 2 Car Wheel Piece 6 Silica Gel 25*2.5mm 2 Car Wheel Screw M3x10mm 4 Car Wheel Screw Nut M3 4 Hub Screw M2.2*7mm 2 Universal Wheel Screw M5x30mm 1 Universal Wheel Screw Nut M5 1 Universal Wheel M5 1 PCB D2-1 1 Connection Wire Red 1 Connection Wire Black 1 Battery Case AAx2 1