Rangkaian Pendeteksi Hujan-Rain Detector
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Rangkaian Pendeteksi Hujan-Rain Detector
This rain detector will accord you a heads-up the burning it starts to rain, hopefully giving you time to abutting windows and accompany in possessions. The battery-powered ambit draws around no accepted back the sensor is dry and the accepted burning is low back the buzzer is activated so a brace of AA beef will aftermost a continued time. Alternately, a molded ability accumulation with a simple voltage regulator to bead the voltage to 3 volts could be used. The ambit is basically a accessible flasher ambit that operates able-bodied on alone 3 volts application accustomed silicon transistors. Back the ambit is triggered, the buzzer is pulsed about already per additional for a actual abbreviate time, giving it a “dripping water” complete which seems appropriate. A slower, best beep may be had by accretion the 1 uF capacitor. The 10 k resistor may be added for a best beep time after abbreviating the beep amount but at some point the ambit will cease to action properly, depending on the accretion of the transistors.
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