smart car

# Complete project description
The tracking car is a microcontroller-based intelligent robot with the ability to navigate autonomously along a predetermined path. This project aims to use the powerful functions and rich peripheral interfaces of Liangshan School microcontrollers, combined with sensor technology and control algorithms, to achieve accurate tracking of specific marked lines by the car. It is suitable for various application scenarios, such as education, entertainment and scientific research. wait.

Project features:
1. Microcontroller: Using a microcontroller as the main control chip, it has high performance, low power consumption and rich peripheral interfaces, and can flexibly expand and control various sensors and actuators.
2. Tracking sensor: By being equipped with a tracking sensor, the car can sense marked lines in the environment in real time, and transmit the sensed signals to the microcontroller for processing and decision-making.
3. Control algorithm: With the powerful computing power of the microcontroller, combined with advanced control algorithms, the car can make real-time decisions based on the data provided by the tracking sensor, and adjust the steering and speed of the wheels to stay on the target line.
4. Peripheral expansion capability: The microcontroller provides a wealth of peripheral interfaces, which can easily connect and control other sensors and actuators, such as ultrasonic sensors, infrared sensors, motor drives, etc., thereby enhancing the car's perception and interaction capabilities.

Based on the advantages of microcontrollers, the tracking car achieves precise tracking and autonomous navigation of specific marked lines through reasonable hardware design and software programming, providing an innovative tool and platform for learning, entertainment and research.

## Function introduction:

1. Mobile phone Bluetooth control car driving
2. Ultrasonic automatic obstacle avoidance
3. Automatic path planning based on the line


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Schematic description:
![SCH_SCH_car_6_1-P1_2023-06-26.png] ![image.png]
## Actual picture
! [Cover.jpg]


## Key program description

Each function of the project adopts modular processing. The Bluetooth module contains the control center. When using mobile phone Bluetooth control, this function needs to be placed in main. The same is true for the ultrasonic module. In actual use, the ultrasonic module should also be placed in the main function.


## The important material purchase

material list is in the attachment, and the development board is the Liangshan School. The motor is the K20 motor in Pinduoduo. Be careful not to use second-hand motors, because they may be bad and debugging will waste a lot of time.
![K20 .jpg]
## Assembly

During the assembly process, the assembly of the motor is more troublesome. This project is relatively rough and needs to be fastened with iron wire. There are some special fixing screws in Taobao.