功能简介：

旋转编码开关是一种可以识别转向的旋转开关，在自动控制和仪器仪表中有着很广泛的应用。本例实现使用一只旋转编码开关控制8个LED点亮的功能。下载试验程序后，顺时针转动开关，会看到被点亮的LED个数变多，逆时针转动开关，会看到被点亮的LED变少。同样，对程序稍加改编利用即可巧妙的完成按键难以达到的良好控制效果。-Features:

　　Rotary switch is a rotary switch can identify the shift in automatic control and instrumentation has a very wide range of applications. This example implementation uses a rotary switch to control 8 LED light function. Download the test program, clockwise rotation switch, the LED will be lit to see the number of changes and more, turn the switch, the LED will be lit to see fewer. Similarly, the use of the program can be a little clever adaptation of the completion of key difficult to achieve good control effect.