Content of this presentation: 1. About project 2. Used components 3. Circuit and code Slides are kept clean, Presenter is supposed to know about the project. Arduino code can be found on the following link :

1. GSM BASED ELECTRIC METER
THE SMART ELECTRIC METER

2. Our Project
A GSM based electric meter reading which warns/notifies the
user about the electricity bill to be paid.
Also, a user can know his/her bill till current time just by
sending a message.

3. COMPONENTS
That we have used:
● GSM module SIM 900A
● A SIM card
● Arduino
● Electric meter
● Load (100 W bulb)

4. Calculating Rate per Pulse
Rating:3200 pulses/kWh
1000 W 60 min=3200 pulses
100 W 1 min=3200/10x60 pulses=5.3
pulses
1 Unit = 1 kWh
Cost of electricity=16 rupees/Unit
1 pulse cost= Rs 16/5.3 = Rs 3.01

5. How does
Electric Meter
Work?

6. Circuit
Pulse from
Electric Meter
Power supply to arduino
12V/1A supply to
GSM Module

7. AC SOURCE
Block Diagram
GSM
MODULE
ELECTRIC METER
MOBILE
PHONE
LOAD

8. void loop()
{ float one_pulse=0.3125;
int Pulse=0;
float Rupee=0,Unit=0;
while(1){
int sensorValue = analogRead(A0);
float voltage = sensorValue * (5.0 / 1023.0);
if(voltage>1){i++;
Pulse++;
Unit=one_pulse*i;
Rupee=Unit*7;}
if(Pulse==3){
Serial.println("AT+CMGF=1");
Serial.println("AT+CMGS="+919055333713"");
Serial.println("Unit: ");
Serial.println(Unit);
Serial.println("Rupee: ");
Serial.println(Rupee);
Serial.write(26);
Pulse=0;}
delay(10);
}
}}
<Code>

9. <Code>
if(SIM900.available()>0){
String textMessage = SIM900.readString();
Serial.print(textMessage);
delay(10);}
if(textMessage.indexOf("GET")>=0){
digitalWrite(LED_output,HIGH);
SIM900.print("AT+CMGF=1r");
delay(100);
Serial.println("AT + CMGS = "+919055333713"");
delay(100);
Serial.println("Unit: ");
Serial.println(Unit);
Serial.println("Rupee: ");
Serial.println(Rupee);
Serial.write(26);
Pulse=0;
delay(2000);
Serial.println("AT+CMGD=1,4");
delay(1000);
digitalWrite(LED_output,LOW);}

10. Presented by: ● Roy Keshav Sharma (16bcs042)
● Sandeep Kumar Mishra (16bcs044)
● Shubham Goyal (16bcs050)
● Tushar (16bcs057)