View source for Ks0261 keyestudio AD8232 ECG Measurement Heart Monitor Sensor Module


<br>
==Introduction==
The AD8232 is an integrated front end for signal conditioning of cardiac bioelectrical signals to monitor heart rate. <br>
This is a low-power, single-lead and heart rate monitor front end for all types of vital signs. <br>
<br>[[File:KS0261.png|500px|frameless|thumb]]<br>

<br>

==Specification==
* Power voltage：DC 3.3V
* Output：analog output
* Interface(connect RA, LA, RL): 3PIN, 2.54PIN or earphone jack
* Working Temperature：-40℃ to +85℃
<br>[[File:Ks0261-1.png|400px|frameless|thumb]]<br>

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==Connection Diagram ==
<br>[[File:KS0261-2.png|800px|frameless|thumb]]<br>

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== Sample Code ==

'''1> Burn the code to UNO board using arduino IDE''' <br>
<pre>
void setup() {
  // initialize the serial communication:
  Serial.begin(9600);
  pinMode(10, INPUT); // Setup for leads off detection LO +
  pinMode(11, INPUT); // Setup for leads off detection LO -

}

void loop() {

  if((digitalRead(10) == 1)||(digitalRead(11) == 1)){
    Serial.println('!');
  }
  else{
    // send the value of analog input 0:
      Serial.println(analogRead(A0));
  }
  //Wait for a bit to keep serial data from saturating
  delay(1);
}
</pre>

<br>[[File:KS0261 心率 (6).jpg|500px|frameless|thumb]]<br>

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'''2> Using processing software[[File:KS0261-3.png|500px|frameless|thumb]] to find the program as below:'''  <br>

<span style=color:red> myPort = new Serial(this, Serial.list()[2], 9600); </span> <br>
This program,'''Serial.list()[2],9600''',is to check the serial port of the computer you used,for example,the below figure shows only one port, so it is '''Serial.list()[0],9600'''. <br>
<br>[[File:KS0261-4.png|700px|frameless|thumb]]<br>
<br>
When the computer appears COM1 and COM5,COM5 is the UNO test of AD8232 board, so it shows '''Serial.list()[1],9600''', you can refer to the below figure: <br>
<br>[[File:KS0261-5.png|700px|frameless|thumb]]<br>

<br>
Heart_Rate_Display.ino   <br>
Demo Program for AD8232 Heart Rate sensor.  <br>
<br>
The AD8232 Heart Rate sensor is a low cost EKG/ECG sensor. This example shows how to create an ECG with real time display. The display is using '''Processing'''.  <br>
This sketch is based heavily on the Graphing Tutorial provided in the Arduino IDE. http://www.arduino.cc/en/Tutorial/Graph <br>
<br>
Resources: <br>
This program requires a Processing sketch to view the data in real time.<br>
<br>
'''Development environment specifics:'''<br>
* IDE: Arduino 1.0.5  <br>
* Hardware Platform: Arduino Pro 3.3V/8MHz  <br>
* AD8232 Heart Monitor Version: 1.0  <br>

<br>
This code is beerware. If you've found our code helpful, please buy us a round! <br>
import processing.serial.; <br>

<pre>
Serial myPort;        // The serial port
int xPos = 1;         // horizontal position of the graph
float height_old = 0;
float height_new = 0;
float inByte = 0;


void setup () {
  // set the window size:
  size(1000, 400);        

  // List all the available serial ports
  println(Serial.list());
  // Open whatever port is the one you're using.
myPort = new Serial(this, Serial.list()[2], 9600);
  // don't generate a serialEvent() unless you get a newline character:
  myPort.bufferUntil('\n');
  // set inital background:
  background(0xff);
}

void draw () {
  // everything happens in the serialEvent()
}


void serialEvent (Serial myPort) {
  // get the ASCII string:
  String inString = myPort.readStringUntil('\n');

  if (inString != null) {
    // trim off any whitespace:
    inString = trim(inString);

    // If leads off detection is true notify with blue line
    if (inString.equals("!")) { 
      stroke(0, 0, 0xff); //Set stroke to blue ( R, G, B)
      inByte = 512;  // middle of the ADC range (Flat Line)
    }
    // If the data is good let it through
    else {
      stroke(0xff, 0, 0); //Set stroke to red ( R, G, B)
      inByte = float(inString); 
     }

     //Map and draw the line for new data point
     inByte = map(inByte, 0, 1023, 0, height);
     height_new = height - inByte; 
     line(xPos - 1, height_old, xPos, height_new);
     height_old = height_new;

      // at the edge of the screen, go back to the beginning:
      if (xPos >= width) {
        xPos = 0;
        background(0xff);
      } 
      else {
        // increment the horizontal position:
        xPos++;
      }    
  }
}
</pre>

<br>
== Test Result ==
Using the software [[File:KS0261-3.png|500px|frameless|thumb]] to open the program,click [[File:KS0261-7.png|500px|frameless|thumb]] key. Using three pads,R-end is stuck on the left chest, L-end is for the right chest, COM is stuck near the stomach. <br>
It will appear the following pattern, and the LED light on the PCB board will flash with the heartbeat. In this way,you can make sure that the board is available. <br>
<br>[[File:KS0261-6.png|700px|frameless|thumb]]<br>


<br>
== Resources ==

* '''Get Codes of All Project：'''<br>
https://fs.keyestudio.com/KS0261
<br>


<br>

== Get One Now ==

*[https://www.keyestudio.com/keyestudio-ad8232-ecg-measurement-heart-monitor-sensor-module-for-arduino-uno-r3-p0466-p0466.html     '''Official Website''']

*[https://www.aliexpress.com/store/product/Keyestudio-AD8232-ECG-Measurement-Heart-Monitor-Sensor-Module-for-Arduino-UNO-R3/1452162_32830624268.html?spm=2114.12010615.8148356.1.6b6faabcGZ6lXQ     '''Shop on aliexpress''' ]


[[Category: Module]]