【Embedded】Dream Chaser II-Smart Car Based on STC32

1. Project Introduction
      This project is a simplified version of the Dream Chaser No. 1. The board size is 7*10cm. You can go to Jialichuang for free proofing. Except for the RZ7899 driver chip, all other devices are plug-ins, which are suitable for novices to learn welding. The core board can be selected from the STC32 core board, STM32 core board and other core boards. When selecting other core boards, you should pay attention to the pin power supply and serial port pin position. After mastering the design of this project, you can freely design a smart car of your own.
 
2. Functional Introduction
        Although small, it has all the necessary functions. The Dream Chaser No. 2 smart car has the functions of a conventional smart car. Each function corresponds to a single-chip microcomputer knowledge point. Through the study of the Dream Chaser No. 1, you can also master the ability of single-chip microcomputer development.
(1) Place two LEDs on the front of the car to simulate the car lighting system and learn the output function of the microcontroller;
(2) Use independent buttons to simulate the one-button start function of the car and learn the input detection of the microcontroller;
(3) Generate passive buzzer music to make driving less boring and learn the timer function configuration;
(4) What to do if there is no power on the road? Use the battery voltage detection function and learn the ADC voltage acquisition function;
(5) Four motors are controlled independently to realize the movement of the car and learn the motor drive and PWM output functions;
(6) There is an obstacle ahead, and ultrasonic obstacle avoidance makes the car safer to drive and learn the use of sensors;
(7) Infrared photoelectric tubes are used to realize the unmanned driving tracking function of the car and learn the use of sensors;
(8) External serial port can be expanded with Bluetooth, WIFI and other wireless modules to realize wireless control functions.
 
3. Skill mastery
      In the learning process of Dream Chaser II, from hardware design to software programming, every step is crucial. To become an excellent electronic engineer, it is required not only to master circuit design, but also to master basic qualities such as PCB design, welding, and code writing. Through the study of Dream Chaser II four-wheel drive smart car, you can not only make the car, but also master the development ability of single-chip microcomputer projects through the study of the car.
(1) Learn the method of circuit analysis of single-chip microcomputer projects and learn how to understand schematic diagrams;
(2) Learn the method of single-chip microcomputer circuit design and have a preliminary grasp of component selection and data sheet reading;
(3) Master the method of Jiali Chuang EDA design of schematic diagrams and PCBs, and design your own smart car;
(4) Master the basic methods of component welding and hardware debugging skills to become a new generation of "welding emperor";
(5) Learn the basic functions and peripheral usage of STC32 single-chip microcomputers, and get started with STC32 project development;
(6) Master the methods and techniques of embedded software development, code reading and BUG debugging;
 
IV. Extended learning materials
1-STC32 core board-CH340 download version open source project (click to visit)
 
2-STC32 core board-HID download version open source project (click to visit)
 
3-Dream Chaser No. 1 STC32 smart car open source project (click to visit)
 
4-Future Electronics Studio Bilibili teaching video (click to visit)