rain detector
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Active In SP

Posts: 13
Joined: Nov 2009
20-11-2009, 08:44 PM

pls send me details abt rain detector
i need details abt project and implimentation Rain Detector
computer science crazy
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22-11-2009, 01:56 PM

please see topicideashow-to-Rain-detector

where its posted
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
seminar surveyer
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08-10-2010, 03:20 PM


Rain detector will give you a heads-up the instant it starts to rain, hopefully giving you time to close windows and bring in possessions. The battery-powered circuit draws virtually no current when the sensor is dry and the current consumption is low when the buzzer is activated so a couple of AA cells will last a long time. Alternately, a molded power supply with a simple voltage regulator to drop the voltage to 3 volts could be used. The circuit is basically a handy flasher circuit that operates well on only 3 volts using ordinary silicon transistors. When the circuit is triggered, the buzzer is pulsed about once per second for a very short time, giving it a "dripping water" sound which seems appropriate. A slower, longer beep may be had by increasing the 1 uF capacitor. The 10 k resistor may be increased for a longer beep time without decreasing the beep rate but at some point the circuit will cease to function properly, depending on the gain of the transistors.

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Thinking To Register

20-08-2012, 02:04 AM

i seriously nid info on rain detector pliz send mi the full report

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