D2‑1 Intelligent Tracking Car

$49.5 $61.38
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 weld­ingThis 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 assem­blyFirst 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 cir­cuitInstall 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 debug­gingPlug 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.Package listCom­po­nentsSpec­i­fi­ca­tionQuan­ti­tyVolt­age Com­para­torLM3931IC Sock­et8‑pin1Elec­trolyt­ic Capac­i­tor100uF2Adjustable Resis­tor10K2Col­or Ring Resis­tor3.3K ohm2Col­or Ring Resis­tor51 ohm4Col­or Ring Resis­tor1K ohm2Col­or Ring Resis­tor10 ohm2Pho­tore­sis­torCDS52LED3mm2LED5mm2Tri­ode85502Switch1Reduc­tion MotorJD3-1002Car Wheel Piece6Sil­i­ca Gel25*2.5mm2Car Wheel ScrewM3x10mm4Car Wheel Screw NutM34Hub ScrewM2.2*7mm2Uni­ver­sal Wheel ScrewM5x30mm1Uni­ver­sal Wheel Screw NutM51Uni­ver­sal WheelM51PCBD2‑11Con­nec­tion WireRed1Con­nec­tion WireBlack1Bat­tery CaseAAx21
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