智能小车：具有循迹、蔽障、金属探测等功能。- A smart car in mystery, unblinded and metals and other features to detect

STM32 测试水中重金属含量，通过电化学阳极溶出伏安法测量水中重金属含量，与标准液进行对比。-STM32 test heavy metals in water, measuring heavy metals in water by anodic stripping voltammetry, compared with the standard solution

显示行驶时间,将所测转速显示在数码管。 金属检测传感器。每检测到一次金属就产生中断一次，蜂鸣器报警，小车停止5秒，记录金属数量和保存转的圈速。 -Display with time, the measured speed is displayed in digital Metal detection sensor. Each time the metal is detected an interrupt is generated once, the buzzer alarm, the