MICROCONTROLLER BASED

WATER LEVEL CONTROLLER

SUBMITTED BY,

NAGALAXMI

PROJECT INTRODUCTION

Microcontroller based water level controller is a simple liquid level indicator.

Three criteria in Choosing a Microcontroller

1. meeting the computing needs of the task efficiently and cost effectively

2. availability of software development tools

3. wide availability and reliable sources of the microcontrollers.

BLOCK DIAGRAM OF WATER LEVEL CONTROLLER

Basic components of water-level controller

The main blocks of this project are:• Microcontroller (AT89C52)• LCD• Sensor• Motor

Microcontroller AT89C52

• The AT89C52 is a low-power, high-performance microcontroller.

LIQUID CRYSTAL DISPLAY (LCD)

• A type of display use in digital watches and many portable computers

• Consists of an array of tiny segments (called pixels) that can be manipulated to present information.

Sensors……….

A sensor (also called detector) is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument.

water –level sensor • There are different aspects of controlling the water level.

There are mainly three aspects of water level control…..• 1. Sensing the water level• 2. Generate the control signal• 3. Controlling the motor

Motor:• Motor is controlled by the microcontroller. The

microcontroller switches the power supply to motor by relay mechanism. The motor employed is DC motor which has high starting torque and constant speed.

Regulated power supply

Circuit diagram of water level controller

Working principle

• Microcontroller checks for high and low voltages.

• If water is below sensor 1, the LCD module will display “tank is empty on the pump”.

• If water reaches sensor 2, the LCD module will display “tank is full off the pump”.

Advantages

• Savings in Electricity consumption.• Savings in Water.• Easy maintenance.• Low cost.• Prevents the water loss due to over flow.

Applications1. The circuit can be implemented in house for

effective usage of water and electricity.2. It can be used in Municipal Corporation to pump

water .3. It can be implemented in larger industries

(Dying Industries).

Future scope

• Controls the motor automatically.

• Reduces the burden on man.

• It can used in any industry concerned with fluids.

Conclusion

• This project overcomes the human effort to fill the tank.

• It is economical and environmental friendly.

• Further implementation results in time and water saving.