Intelligent car design based on LCSC Liangshan School

The goal is
 to familiarize oneself with the development process of embedded projects and master the ability to design hardware circuits, software programming, and system debugging for a smart car.
Functions include
: 1. Independent lithium battery charging circuit: The battery can be charged by plugging it into the TYPE-C port after the car is powered off.
2. Two-channel tracking module: Two infrared reflection detectors detect black lines for tracking.
3. Motor control chip: The motor can be controlled in four modes—forward, backward, braking, and hovering—by outputting high and low levels from two I/O ports of the microcontroller. Speed ​​can also be adjusted via PWM control.
4. Power conversion circuit: Converts the 7.4V output from the lithium battery to 5V to power the microcontroller and includes a power switch to turn the car on and off.
5. Wireless and Bluetooth module: Enables remote control of the car's movement via wireless and Bluetooth modules. The wireless module can be used for 2.4G wireless control, and Bluetooth can be used for mobile phone control.
6. Buzzer: Uses a buzzer for warnings, such as in conjunction with a battery indicator to indicate low battery or in conjunction with an ultrasonic module to warn of obstacles ahead.
Skills acquired include
: learning how to efficiently read datasheets, consult relevant materials, and learn bug fixing techniques, with a focus on the process of finding information and fixing bugs.
The problem encountered was
that Keil did not recognize the dap file and used DFU for flashing.