ElectronicsMaterial Science

WATER LEVEL INDICATOR

Water Level Indicator Model

           WATER LEVEL INDICATOR WITH MODEL

Aim: To monitor and control Water level for the overhead tank.

 

Working Principle:

To constantly monitor the overhead tank water level and compare it with a set point. If the water level crosses the set point then we operate a relay which will turn ON/OFF the water motor to control the water supply.

 

Block diagram:

Water Level Indicator
Water Level Indicator

 

Block diagram Explanation:

Here we are designing a System which will automatically detect the water level and control any water overflow by controlling the motor supplying the water.

 

  • Read the analog sensor data. Perform Signal conditioning on the signal. (If the signal is very low in µv).
  • Store the water level in µC internal memory (RAM).
  • Display the water level on LCD
  • Compare the current water level with a set point and turn ON/OFF the relays according to the set point programmed in the µC program
  • If the water level is full turn Off the motor, if not, Turn On the motor.
  • Loop

 

Hardware Features:

  • µC : PIC 16F877A
  • Sensors :

Float :Resistive type 0-1 Kohm

  • LCD: 16*2 , 100 ma , Alphanumeric Display
  • Relay: 12v , 230v ,Single change over
  • Power Supply: 5V, 750 ma current.

 

Soft ware Features:

µC programming : C

MPLAB IDE compiler, PIC Flash Programmer

 

 

 

Component List:

Sno. Component Name Quantity
1 Microcontroller 89S52 1
2 LCD 16*2 1
3 Diode 1N4007 6
4 LM 7805 1
5 Crystal 11.0592 MHz 1
6 33 pf paper cap 2
7 0.1 µf Paper cap 2
8 10 µf Electrolytic cap 1
9 1000µf Electrolytic cap 1
10 10 kohm ¼ watt 2
11 150 pf paper cap 1
12 Float sensor 1
13 ADC 0804 8 Bit 1
14 Buzzer 5v 1
15 Relay 12v 10A 1
16 BC 547 1
17 1 Kohm ¼ watt 1
18 2 pin relimate conn. (M+f) 1
19 3 pin relimate conn. (M+f) 1
20 4 pin relimate conn. (M+f) 1
21 16 pin relimate conn. (M+f) 1
22 Resistance strip 10k 9 pin 1

 

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