Here is a simple rain alarm circuit that produces an audible alarm when ever rain falls. The rain detector circuit is based on two transistors (Q1 & Q2) and a NE555IC (IC1). The two transistors are wired as a switch which goes on when the base of Q1 is shorted to the positive of the supply by the rainwater falling on the sensor. When the transistors are ON power supply is available to the IC1 which is wired as an astable multivibrator. The output of IC1 drives the speaker to produce an alarm.

Do you need to learn more on the basics of electr ....etc

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Sir,
Pls send me any pdf file or project reoprt on the topicRain Alarm to my mail id:gauravjssatebgmail.com.
kindly respond to this as fast as possible.
Plz sir sent me a file on rain alarm project in details about 50 Page

And all the component how work in the project

Where circuit using component BC548.BC558,probe,etc.. ....etc

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rain alarm .. circuit and process .. how we can make it on 8051 microcontroller ....etc

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rain alarm wikipedia

A rain sensor or rain switch is a switching device activated by rainfall. There are two main applications for rain sensors. The first is a water conservation device connected to an automatic irrigation system that causes the system to shut down in the event of rainfall. The second is a device used to protect the interior of an automobile from rain and to support the automatic mode of windscreen wipers. An additional application in professional satellite communications antennas is to trigger a rain blower on the aperture of ....etc

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Rain sensor diagram that will really work as you want, what you want to do. It is a device that will generate an alarm when the rain comes. frequency will be more when the rain is heavier and much less when the rain would be low. This means that all frequencies will depend on rain. We must always focus on creating the signal. Don't focus on the rest of the, we should do it. When we get a signal now, we can do whatever you want to do.
We'll do one circuit wires so that the chain easily and every reader can read it. Double wire still complicated ....etc

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Water is basic need in every one s life. Saving and proper usage of water is very important. Here is an easy project which will give the alarm when there is rain, so that we can make some actions and save the rain water. As a result, we can increase the water levels of underground water by using underwater recharge technique. Rain water detector will detect the rain and make an alert; rain water detector is used in the irrigation field, home automation, communication, automobiles etc. Here is the simple and reliable circuit of rain water detec ....etc

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Water is basic need in every one s life. Saving and proper usage of water is very important. Here is an easy project which will give the alarm when there is rain, so that we can make some actions and save the rain water. As a result, we can increase the water levels of underground water by using underwater recharge technique. Rain water detector will detect the rain and make an alert; rain water detector is used in the irrigation field, home automation, communication, automobiles etc. Here is the simple and reliable circuit of rain water detec ....etc

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i got the simple circuit for making rain alarm..it consists of 2 transistors,2 resistances,capacitor.alarm,battery,etc..can you plz tel me what is the working principle?..how current flows,what is the use of transistor in it ,etc,etc.. ....etc

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please i want a full writeup on rain alarm detector.
i want a full project writeup on rain alarm detector. ....etc

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Rain Detector

This 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 usi ....etc

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