Rangkaian Radar Pompa Air (Kontrol Ketinggian Air)

Radar Pompa Air (Kontrol Ketinggian Air)By means of a Relay, employed to drive a water pump, this circuit provides automatic level control of a water reservoir or well.Skema Rangkaian Radar Pompa airNote:The two steel rods must be supported by a small insulated (wooden or plastic) board.The circuit can be used also with non-metal tanks,...

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Rangkaian ON OFF Sleep Timer Switch

ON/OFF Sleep Timer SwitchThis timer was designed mainly to switch off a portable radio after some time: in this way, one can fall asleep on the sand or on a hammock, resting assured that the receiver will switch off automatically after some time, saving battery costs.Skema Rangkaian ON OFF Sleep Timer SwitchR1 and C1 provide a very long...

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