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.
Here, 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. This is the simple and
reliable circuit of rain water detector which can be constructed at low cost.
Q1. Major region where we can implement this project?
Ans1. Rain water detector is used in the irrigation field, home automation, communication, automobiles and various related sectors.
Q2. How it detect if there is any rain or not?
Ans2. When there is no rain the resistance in the circuit is high but when there is rain the resistance between the terminals drop due to sensor and the circuit completes due to flow of current and hence it indicate by turning On the buzzer and led.
Q3. Major component used in this project?
Ans3. OP AMP (operational amplifier) IC (LM358), NPN transistor (BC547) are two major components used.
Q4. How project will remain safe during rain?
Ans4. Only the sensor is placed outside, the whole circuitry is placed inside a box. So it will work in heavy rain easily.
Q5. Why we are using regulator IC in the main power supply?
Ans5. Regulator IC 7805 is used to regulate voltage .It is used in main power supply to step down the 12V to 5V.