[2023 Electronic Design Contest] Intelligent Car Design

Test code is attached.
Contact the author via QQ: 2456640595.
The design includes:
1. Independent DC-DC regulator module (capable of outputting 3.3V, 5V, and ADJ adjustable output)
2. Car main control board (onboard DC-DC regulator, 16-25V input, step-down to 5V and 8V)
3. STM32 minimum system board (same size as commonly available STM32 minimum system boards, can be directly replaced)
Please note: There was an error on the author's board, namely, the silkscreen of the Bluetooth module was reversed. It has now been corrected; simply plug in the Bluetooth module as shown in the picture.
If there is enough interest, a video tutorial will be considered on Bilibili .
The following will be updated:
I. Soldering and testing of the car main control board
1. The effect after soldering and connecting the download and USB cables is shown below:
2. Test whether the car's Bluetooth module functions normally.
Expected experimental effect:
After the mobile phone sends the string "LED_OFF" through the Bluetooth assistant, the onboard LED of the STM32 minimum system board will turn off.
After sending the string "LED_ON", the onboard LED of the STM32 minimum system board lights up.
Test result:
3. Test whether the onboard OLED screen display function is normal
. After programming the code, the OLED screen displays "Hello_STM32".
Test result:
4. Test the onboard buttons
. After programming the code, the OLED screen displays the number of times each button is pressed.
Test result:
5. Test read the onboard MPU6050 data .
After programming the code, the OLED screen displays the MPU6050 data.
Note: Because the code does not perform any data filtering, the data is unstable.
6. Test read the onboard buzzer.
After programming the code, the buzzer sounds intermittently. (No demo images are provided here.)
II. Design of a Bluetooth-controlled car
III. Code design of a line-following car using a grayscale sensor
IV. Code design of a line-following car using OpenMV
V. Code design of Problem C from the 2022 National Electronic Design Contest
VI. Code design of Problem F from the 2021 National Electronic Design Contest
Declaration: Some code is taken from the code of Jiangsu University of Science and Technology on Bilibili, and the core code is taken from the Taobao store "Witch Development Board".
If there is any infringement, please contact me to delete it.