Student Seminar Report & Project Report With Presentation (PPT,PDF,DOC,ZIP)

Hi am Mahi i would like to get details on rain alarm project report to download ..My friend Justin said rain alarm project report to download will be available here and now i am living at ......... and i last studied in the college/school ......... and now am doing ....i need help on ......etc

Rain Alarm is an application that detects rainwater and shock alarm. They are useful devices and play an important role in various industries such as automobile, irrigation and wireless communication. Desiging a rain alarm system is quite simple and we have designed here a demonstration rain alarm project with the help of 555 Timer IC.

Components

Rain sensor (You can buy or build yourself)
555 IC Timer
NPN Transistor BC547
Resistors (470, 100k and 1k ohms)
Condenser (10uf)
Buzzer
9v Battery

The main component of this rain alarm is rain sensor, I have bought one, but we can also build it at home. It is very easy to create a rain sensor. Take a sheet of Bakelite or mica, and glue the aluminum wire in it according to the diagram below. The separation between the cables should be around 3-5mm. It can be seen that every time the rainfall falls on the rain sensor, the point A and B is cut off and a voltage is applied to the base of the transistor, and it will turn ON. We can also use copper wire for rain sensor but copper usually reacts to oxygen to form oxide, so it needs to be cleaned on a regular basis.

Circuit Diagram

Student Seminar Report & Project Report With Presentation (PPT,PDF,DOC,ZIP)

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