Experimental education project "to open and close the device with light pressure the light signature," an experimental method as follows:Step 1 Study on the height of the flooding level, with the functioning of the device, cut the power when the flood occurred.1. Design and construction of the device, turn off the auto light. From the research data by doing the following:1. Design the study so that the appropriate equipment to use.2. the study of the electrical circuit design to make it available to the electrical device is actually inside the House.3. prepare and implement such devices.4. equipment and Assembly
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