2. ABSTRACT
๏ People generally worry about the wastage of
water , when they switch ON the motor, but
forget to OFF them.
๏ Our idea may help them in saving water for
future with low cast.
3. CONTENTS
๏ Introduction
๏ Components required
๏ Block diagram
๏ Circuit diagram
๏ NE 555 IC
๏ NE 555 pin configuration
๏ Purpose of NE 555
๏ Level indicator
๏ Sensor unit
๏ Control unit
๏ Working principle
๏ Circuit operation
๏ Advantages
๏ Disadvantages
๏ Applications
4. INTRODUCTION
๏ Our project mainly consist of 555timer , 12V motor
,Relay and wires which acts as sensor.
๏ The wires are placed at the different levels of the tank.
๏ All these mentioned components take an active role in
switching ON and OFF of the motor.
5. COMPONENTS REQUIRED
๏ Power supply (12V)
๏ NE 555 timer IC
๏ Resistor (100 ohm-(2),1K ohm)
๏ D.C motor(12V)
๏ LED
๏ BUZZER
๏ Relay
๏ Connecting wires
12. LEVEL INDICATOR
๏ต The LED and BUZZER was used as a level indicator.
๏ต When the water is in lower level , it was indicated with the help
of LED.
๏ต When the water level is LOW the LED is glow.
๏ต When the water level is goes high , then it was indicated with the
help of BUZZER.
๏ต When the water is level is high then the BUZZER is switched
ON.
13. SENSOR UNIT
๏ต In this circuit the connecting wires are used as a sensor, which
sense the level of water in the tank with the help of supply.
๏ต In general the aluminum wire is used.
๏ต The wires are connected on the tank and the power supply is
given through the wire to the water tank.
๏ต The connected wires in LOW and HIGH position conduct the
electricity through water and sent these power to NE 555 for the
control of the motor operation.
14. CONTROL UNIT
๏ต The NE 555 plays a main role in control unit .
๏ต The NE 555 reciveces the signal from the sensor unit and generate the
output signal which was used to control the motor operation.
๏ต If the water level in the tank is LOW then the output of the NE 555 is
HIGH , which switch ON the motor.
๏ต If the water level in the tank is HIGH then the output of the NE 555 is
LOW , which switch OFF the motor.
15. WORKING PRINCIPLE
๏ This system mainly works on the principle that โ water
conducts electricityโ .
๏ The four wires which are dipped into the tank will
indicate the different water levels.
๏ Based on the output of these wires ,the NE 555 timer
generate the signals which control the operation of the
motor.
16. CIRCUIT OPERATION
๏ When the 9V battery connected to the circuit , if
the water level of the tank low the NE 555 output
is high , which run the motor.
๏ If the water tank is full then NE 555 output is
low or even zero , which OFF the motor.
17. CIRCUIT OPERATION
๏ In this circuit NE 555 timer works as a controller
, which control operation of the motor.
๏ If water level is goes low then the NE 555 timer
output is high or maximum level which again run
the motor until when the tank is full.
19. DISADVANTAGES
๏ This project may not be able to handle high power.
๏ The components used in this are sensitive and may
damage easily.
๏ We need to insert the wire in accordance with the
level of water.
20. APPLICATIONS
๏ It is used for all household purpose.
๏ It can be used in commercial centers.
๏ It will be very much useful to farmers.
๏ It can be used in all places to control water level.