Buoy is a device which floats in the sea water, used to direct the ships in which this paper is preferable to get electricity from salt water/ sea water by using two tongue depressor. Using level sensor has per this paper, where going to sense distance between a ship / a boat and a buoy, regarding the distance between those two objects, alarms or buzzers may indicates. An IOT applications has been implemented on a buoy, so that if any obstacles damage a buoy, the information can be specified to the communication station through SIM900
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