这是饮水机控制器里面可以应用的源代码，1：使用S3F84A5控制芯片；

2：里面有按键长按，短按处理事件

3：使用S3F84A5里面的PWM功能-1：short press the set key,power is on or off state

2:when the power is on,short press the hot water key,turn on the hot water valve

short press it again,shut off the hot water valve　

3 :when power is on,longly press the hot water for 3 seconds,turn onthe cold water

vlave longly press it again,shut off the cold water valve

4:when power is off,shut off the cold and hot water valve the hot water key do not

use