could you please help me to do an ECG

I tryed this, but didnt worked:

/*
AnalogReadSerial

Reads an analog input on pin 0, prints the result to the Serial Monitor.
Graphical representation is available using Serial Plotter (Tools > Serial Plotter menu).
Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.

This example code is in the public domain.

*/

// the setup routine runs once when you press reset:
void setup() {

// initialize serial communication at 9600 bits per second:
Serial.begin(9600);
}

// the loop routine runs over and over again forever:
void loop() {
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// print out the value you read:
int sensorValue1 = digitalRead(11);
int sensorValue2 = digitalRead(12);
Serial.println(sensorValue+sensorValue1+sensorValue2);
delay(1); // delay in between reads for stability
}

What can I do?

Btw, do u remind my other forums chat, someone eraased my forums chat....

Or well, could remind were they were, thank you anyways.

I found this.... http://www.athenatechnocenter.com/how-to-interface-arduino-with-ad8232-heart-rate-monitor/ , nut anyways what could you tell me?

 int sensorValue = analogRead(A0);
 // print out the value you read:
   int sensorValue1 = digitalRead(11);
    int sensorValue2 = digitalRead(12);
 Serial.println(sensorValue+sensorValue1+sensorValue2);

What is this all about ?

sensorValue will be between 0 and 1023
sensorValue1 will be either 0 or 1
sensorValue2 will be either 0 or 1

What is the point of adding them together ?