The pendulum of a clock is a rod with a weight at the end which swings from side to side in order to make the clock work. You can use the idea of a pendulum and the way it swings regularly as a way of ...

采用STM32作为主控； 双层PCB设计； 从静止开始，15s 内控制风力摆做类似自由摆运动，使激光笔稳定地在地面画出一条长度不短于50cm 的直线段，其线性度偏差不大于±2.5cm，并且具有较好的重复性； 从静止开始，15s 内完成幅度可控的摆动，画出长度在30~60cm 间可 ...