We are all familiar enough by now with the succession of boards that have come from Raspberry Pi in Cambridge over the years, ...
还有两个使能引脚（一个用于电机A，一个用于电机B），可以用来控制电机的速度，通常通过PWM信号实现。 OUT1和OUT2 电池1、OUT3和OUT4 电池2 12V电源正极（暂不用）、GND电源负极接到esp32电源负极 、+5V接到esp32电源正极极 ENA：电机1PWM调速引脚 ...
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