Megatronics D2-1 Smart Tracking Robot Car Instructions
- June 13, 2024
- Megatronics
Table of Contents
Megatronics D2-1 Smart Tracking Robot Car
Introductions
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 emits the red light, then light will be reflected
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.
This kit does not contain batteries
Package list
 
Schematic diagram
Assembly instructions
The assembly steps
The first step: the circuit part of the basic welding
Pay attention to the welder, welding according to the welding circuit is
simple, the welding sequence component height from low to high principles, the
first welding eight resistance welding must be used universal confirmation
form resistance is correct, is welded with a polar components such as
transistors, the green indicator light, the electrolytic capacitor must point
clear polarity as reference we picture element direction, welding capacitor
short pin is the negative into the PCB screen printing on the shadow side of
the green LED pin long is the cathode welding time not too long otherwise easy
to weld, D4, D5 R13, and R14 can be temporarily not welding, integrated
circuit chip can be in, the initial completion of welding, please be sure to
carefully check, prevent careless.
The second step: mechanical assembly
Will the universal wheel and the screw is inserted into the PCB hole and
screwed universal wheel nut and a universal round. Battery box through the
double-sided adhesive tape affixed to the PCB and lead wire through the PCB
reserved eyelet welding connected to the PCB, the red wire 3V power supply.
The yellow line grounding, and excess lead can for interconnection of the
motor. The mechanical parts assembly can be assembled by three wheels, the
wheels round black acrylic sheet. Please remove the protective film before the
assembly, wheel center hole inside the park grows, and the middle wheel
diameter is relatively small, round piece center hole Shiyuan outside, with
two screws fixed to three round plates, and is fixed on the motor shaft with
self-tapping screws black, the silicone tire sets on wheels. Connect the motor
wire lead, and the wheel assembly with the adhesive formulation position in
PCB, note the wheels and PCB edge keeping sufficient clearance, the motor wire
welding to PCB, pay attention to lead appropriately to stay longer, to change
the direction of rotation of the motor to prevent lead error after order.
The third step: is the installation of optoelectronic circuits
Photosensitive resistance and light emitting diode (attention polarity) is the
reverse installed on the PCB, and the ground distance of about 5 mm, the
distance between the photosensitive resistance and light emitting diode is
about 5 mm.
The fourth step: the vehicle debugging
In the battery box in 2 AA batteries, switch ON the “ON” position, the motion
of the car’s right inverse is the universal wheel direction, if you hold down
the left side of photosensitive resistance, the car ON the right side of the
wheel should turn, hold down the right of the photosensitive resistance, the
car to the left of the wheel should turn, if the car back can exchange at the
same time two motor wiring, if one side is normal other retreat, as long as
the exchange of back side of the motor wiring.
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>