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D2-1 Intelligent Tracking Car

Model : APK14055C

Initial Weight : 132.00g

$5.50

Availability: In stock

Qty:
The diy smart tracking robot car kit is an introductory electronic kit designed to help kids or electronic, enthusiasts, and novices learn about basic electronic basics knowledge like soldering and simple circuits(photoelectric sensor circuit,voltage comparator,motor driving,ir sensor,C51 MCU) The smart kit is designed based on the principle of infrared sensor and light reflectivity difference when the light emitting on the white and black items, The red LED emit the red light, then light will be reflected to the photoresistor, the circuit will detect the resistance to detect if the car on the white area and to regulate its running direction automatically. There is no programming involved, and all of the soldering is beginner-friendly, making it perfect for budding electronic enthusiasts.
Easy to make, we do not supply you with a manual, instead we supply you some assembly steps and schematic.
The assembly steps:

The first step: Part of the circuit welding

This part is relatively simple, according to the principle of welding the original height from low to high as the welding sequence. First we should solder eight resistors, do not forget to use a multimeter to confirm their resistance. Some other polar components, such as triode, led lights, electrolytic capacitors, etc.. These components need to refer to our picture  to the direction of welding, welding capacitors, the short pin is negative. When welding the LED, the long pin is positive. Note that the welding time can not be too long, which may burn the components, D4, D5, R13, R14 can be temporarily not welded, integrated circuit chip can also be temporarily not inserted into the base.

Step 2: Mechanical assembly

First of all we need to use screws and nuts to fix the caster on the PCB board, and then paste the battery box  on the PCB board through the double-sided adhesive, the battery box on the wire through the reserved hole and then welded to the PCB board, red line connect to the + 3V power supply, yellow line link to grounding, then we need to assemble the wheels, first  connected the fixed hole to the paddle of the motor, and then fixed with a screw to prevent the wheels off, finally need to have two wheels with motor to affixed to a fixed position on the PCB board. Finally, the wire of the motor is also welded to the fixed position on the pcb board.

Step 3: Install the photoelectric circuit

Install the photoresistor and the light-emitting diode on the opposite side of the pcb, that is, at the bottom of the car's front, keep the ground distance of about 5mm, and keep the resistance and the distance between the diodes is about 5mm, and finally the power test.

Step4: Car debugging

Plug the two AA batteries into the battery box, and then turn the switch to the "on" position, the car should be kept moving forward, this time if you hold the left of the photosensitive resistor, the car on the right side of the wheel should turn, if you hold the right of the resistor, the left side of the wheel should be rotated, if the car has been running back, then as long as exchange of the wire of two motor at the same time, if only one side of the back, then only need to exchange the the wire of back side.

product_name

Package list

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

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product_name

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Customer Reviews

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Nice toy, worth the money Review by Thomas
Quality
Price
Value
This is a nice little toy. With some black isolation tape on a bright floor, you have all you need to keep kids playing with it for days. You may need to improve the sensor part a bit with some mechanical protection to avoid damages due to collisions tough. Some sleeving or a bit tape might be sufficient already.
The assembling is easy (provided you have basic soldering knowledge) and well described. The circuit is kept simple. Since the inputs of the voltage comparators are connected, the two channels influence each other. So the car will rather never go strait but following a contrast line (e.g. edge of black tape) by powering the left and right motor in quick turns. This may sound strange but seems to be even more funny for the kids. The bright side is: If the car looses track (e.g. at the end of the tape) the car will drive circles instead of driving strait away. So, on a grippy surface, the car will turn around, find the tape and go back on it. (Posted on 3/6/2017)

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