To Solve the odor and bacteria generated by the rag, use the humidity sensor to detect the humidity, then it will send a signal to a micro control panel to control the relay. When the rag achieves the moderate effect, the relay will be turned off.為解決抹布使用完產生的異味與細菌,利用溼度感測器偵測到濕度時傳送訊號到微控制板控制繼電器,啟用功能使抹布達到理想的效果後,繼電器則會關閉。