Feature

●Help you get familiar with the mechanism theory and learn about photoelectric sensors, voltage comparators, motor drive circuits and other related electronic knowledge in the process of assembly.
●Photosensitive resistors can detect the intensity of outside light, the stronger the outside light, the less resistance is. Due to the difference of reflectivity, red LED light is projected into the white and black part.
●LM393 is a dual channel voltage comparator integrated circuit consisting of two independent high-precision voltage comparators. It compares two input voltages and is used to change the output voltage according to the input voltage
●Specially made motor has deceleration gear, and greatly reduces the difficulty that is very suitable for use
●LM393 compares two photosensitive resistors to stop the motor on one side when resistance looks unbalanced and the motor on the other side rotates faster to return the car to the correct direction. The entire process is closed loop control, so you can quickly control it.


Description

Assembly Instructions:

Step 1: Welding Circuit.

Electric welding parts are easier to use, the principle of the part level from low to higher according to the order of welding, it is important to use a multimeter to make sure the resistance is present.

Step 2: Mechanical assembly
The red wire is connected to a positive 3V power supply. Yellow ground and surplus wire can be used for motor wires.

Step 3: Installation of photoelectric circuits
Photosensitive resistance and luminous diodes (attention to polarity) are mounted reverse on the PCB and ground distance is about 5mm. 5mm distance between both light sensitive resistance and emitting diodes. Finally, you can test the power supply.

Step 4: Debugging your vehicle
The right direction follows the universal wheel direction. You need to rotate the car to the left photo register, right wheel Hold the photo register on the right side. If the car is driving, you need to rotate the wheel on the left side of the car. If one side is normal, you can replace the wiring on the back or the two motors. Turn the reverse side as long as you can switch the wiring on the back.

Package Includes:

1 x Smart Car DIY Set (disassembled part).