以单片机和步进电动机为核心设计单片机电梯控制器，假设电梯安装在一个楼层为四层的小楼上。其人机接口包括显示器、键盘、喇叭、指示灯。每层楼电梯口都有上楼、下楼两个按钮，一个7段数码管显示器作为电梯当前层指示灯，2个发光二极管作为电梯运行方向指示灯；进入电梯里边，按数字键选择想要去的目的楼层，一个7段数码管显示器作为电梯当前层指示灯，2个发光二极管作为电梯上行和下行指示灯。步进电动机正转表示电梯上行，步进电动机反转表示电梯下行。启动按钮按下去表示电梯控制系统可以运行。紧急停止按钮按下，电动机停止运动。报警按钮按下，启动蜂鸣器和闪烁红色报警灯。-Elevator core design microcontroller microcontroller and stepper motor controller, assuming the elevator installed in a floor-four small upstairs. Its man-machine interface, including the monitor, keyboard, speakers, lights. On each floor, the elevator has upstairs and downstairs and two buttons, a 7-segment display as the the Elevator current layer indicator, two light-emitting diodes as the elevator running direction indicator　into the elevator inside, press the number keys to select the desired to the destination floor, a 7-segment display as the Elevator current layer indicator, the indicator of the two light-emitting diodes as the elevator uplink and downlink. The stepper motor is transferred elevator up, the stepper motor reversal elevator down. The start button is pressed the elevator control system can run. Emergency stop button is pressed, the motor stop motion. The alarm button is pressed, the start buzzer and flashing red warning lights.