A single microcontroller I/ O pin senses the state of a three-position switch. 单个微处理器I/O引脚感知三位置开关的状态。
Three-position switch ( 120 deg. step). Contact positions can be specified. 位置开关(120度间距)。可指定触点位置。
A mechanical interlock ensures that the cable compartment cover can only be removed when the three-position switch is in earthed position. 机械联锁保证只有在三位开关处于接地位置时才能揭开电缆室盖。
A scheme for designing the three-position switch with both analog and digital devices is presented with specific diagram and program code. 介绍了一种利用模拟可编程器件和数字可编程器件设计三工位开关控制器的方案,并给出了具体的电路图和程序代码。