# Water Level Indicator With SMS

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## Introduction: Water Level Indicator With SMS

Today I am going to talk about a very useful project . It is called the Water Level Indicator with SMS notification. Everybody has overhead tank at their homes. The problem is that there is no system to track the water in the tank. Then there come a secondary problem that is when their water pump is started they have no idea when it gets filled up and sometimes there are situation where the pump keeps on pumping water to the tank and the water starts spilling out from the tank. There is wastage of energy as well as wastage of water. So this system is very useful to detect the water level. It is also useful for tall buildings where it is not possible to check the water level.

Let's get started.

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## Step 1: Components

1. Atmega328

2. Arduino Uno

3. Switch x1

4. Crystal Oscillator x1

5. 10uf capacitor x2

6. BC547 npn transistor x4

7. Resistor 1k x5

8. Resistor 100 x8

9. PCB x1

10. LM7805 5volt regulator

11. LM7812 12volt regulator

12. Capacitor 22uf x2

13. Solar Pannel 20v

14. Heat Sink x1

15. Wires

16. GSM modem 800H or 900A

## Step 2: Connections & Making PCB

Make the connections of transistors with Resistors on the breadboard as shown in the ckt diagram check the output. Output will be greater than 3 volt to send the logic HIGH to the arduino.

Mount the resistors and transistors on the pcb.

Mount the 28 pin ic socket on pcb.

We are making standalone arduino.

Solder the crystal oscillator along with 22uf capacitors.

Connect outputs of the transistors to the analog pins o the IC refer to the pin diagram of the ic.

Make connection of the voltage regulator properly with capacitors.

Heat sink must be attached to the 7812 voltage regulator as the GSM modem draws more current from it.

Solar pannel connected to the input of the 7812 ic.

Solder all the components as in the ckt diagram on pcb. Check the connections.

## Step 3: Programming

Connect your arduino UNO to your PC wiyh ic atmega328 in it.

Burn the following Code into your arduino.

int a=0;
int b=0;

int c=0;

int d=0;

void setup()

{ pinMode(A1,INPUT);

pinMode(A0,INPUT);

pinMode(A2,INPUT);

pinMode(A4,INPUT);

Serial.begin(9600);

}

void loop()

if(r==HIGH && s==LOW && t==LOW && u==LOW)

{ if(a==0)

{ Serial.println("AT+CMGF=1");

delay(500);

Serial.println("AT+CMGS=\"your no.\"");//Change the receiver phone number delay(500);

Serial.print("Level 1 Turn on the Motor "); //the message you want to send

delay(500);

Serial.write(26);

delay(500);

a++; b=0; c=0; d=0;

}

}

if(r==HIGH && s==HIGH && t==LOW && u==LOW)

{ if(b==0)

{ Serial.println("AT+CMGF=1");

delay(500);

delay(500);

Serial.print("Water at Level 2 ");

//the message you want to send

delay(500);

Serial.write(26);

delay(500);

b++; a=0; c=0; d=0;

} }

if(r==HIGH && s==HIGH && t==HIGH && u==LOW) { if(c==0)

{ Serial.println("AT+CMGF=1");

delay(500);

Serial.println("AT+CMGS=\"your no.\"");//Change the receiver phone number delay(500);

Serial.print("Water at Level 3 "); //the message you want to send

delay(500);

Serial.write(26);

delay(500);

c++; b=0; d=0; a=0; } }

if(r==HIGH && s==HIGH && t==HIGH && u==HIGH)

{ if(d==0) { Serial.println("AT+CMGF=1");

delay(500);

delay(500);

Serial.print("Tank Full Switch off Motor "); //the message you want to send

delay(500);

Serial.write(26);

delay(500);

d++; c=0; b=0; a=0;

} }

else

{ Serial.print("Circuit Not Connected");

}

}

Now Remove the ic & install it into the pcb.

## Step 4: Assembling & Test

Take a PVC pipe having height equal to your water tank.

Stick the wires from the ckt at different levels of the tank.

Note that the Vcc wire always dipped into water.

Make all the Connections.

Connect Rx of ic which is on pin 2 to the Tx of the GSM modem.

Connect Tx of ic which is on pin 3 to the Rx of the GSM modem.

Connect the solar pannel to input of 7812 ic.

Check all Connections And the Project is ready.

Make shed for the system to protect it from rain.

Test It!

When you conserve water, you conserve life!

Water = Life, Conservation = Future!

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## 57 Discussions

hi sir thank you .your work inspired me more.
this project is same to my thesis .can i have a clear diagram for this project and how the to use and connect the gsm because when i buy the gsm modem the seller said that i should learn and first an install some o.s is that right?

and whaat is the use of pcb in this project where did the pcb connected?

Sir where to connect the arduino on a PCB

Sir what of programming you used?

Does 20volts really necessary or is it okay to have a lesser voltage?

Sir, what would be the maximum distance does the sending of message will still be effective

we are using sms service so it is same as we send sms from our mobile phone.

Thank you for the reponse sir. I have last question sir, Do i have to to pay for the load in order to for the indicator to send message?

Yes normal sms charge of ur sim card will deduct

Is there other way to send message without paying for load?

Sir, what would be the maximum contact that can receive the message?

Use contacts less than 10 for better working of gsm or you can use more also.

Does all the components above are neccesary?

Yes all the components are necessary or you can customize ckt as your needs.

How to add mobile number for sending SMS on mobile phone

See the code replace ' your mobile no' in the code with your mobile no.

hello sir im 1st year eng. student have decided to work on this project need guidance on various things can get some advice over phone any other way to contact you?

Lavhalerishabh1997@gmail.com contact me on this.

may u construct schematic circuit for this project?

sir please give me your contact no