多功能小车，有超声波测距1602显示有超声波避障和跟踪人，又有红外循迹，还有18B20测温显示并能自动降温-Multi-purpose car, Ultrasonic Ranging 1602 ultrasonic obstacle avoidance and tracking people, there are infrared tracking, 18B20 temperature display and automatic cooling

STM32实现人脸跟踪，通过舵机控制摄像头跟踪人的脸，顶顶顶顶顶顶顶(STM32 realizes face tracking. The camera is controlled by the steering gear to track people's face)