【LiChuang Development Board】Xiaobai Smart Car

Learn and implement your first smart car.
Comprehensive implementation of tracking, obstacle avoidance, Bluetooth and other functions.
In order to save costs, the size of the expansion board was redesigned, and Board2 was used. (￣▽￣)~*
The tracking, obstacle avoidance and Bluetooth remote control functions of the car were verified in turn in the comprehensive experiment, and switched by pressing the KEY_M button.
B station demonstration link: [https://www.bilibili.com/video/BV1JM411Y7bR?t=13.4](https://www.bilibili.com/video/BV1JM411Y7bR?t=13.4)


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Comprehensive test of the smart car
Functions implemented by the test
1. Switch the motion mode by pressing the button: tracking mode, obstacle avoidance mode, Bluetooth remote control mode
2. Tracking mode: can walk along the black line
3. Obstacle avoidance mode: when the distance to the obstacle in front is less than 6cm, the car stops moving, backs up and turns left (right)
4. Bluetooth remote control mode: control the movement of the car, turn on and off the lights
5. Key switching instructions:
(1) KEYM is used to switch the motion mode
(2) KEYS is used to start the car. The car starts LEDS and the car stops LEDS.