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使用超声波传感器和RGB LED建立视觉接近警报
如果您对接线图感到满意,并且能够在没有额外指导的情况下连接硬件,请随意跳过下一节(设置RGB LED) ! 一步一步的超声波接线说明 1. 将四根跳线插入HC-SR04的引脚。 2. 将VCC线插入面包板的正轨,将GND线插入负轨。从这一点开始,我们将使用面包板来简化布线 ...
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