Max Björverud

pulse-sensor-amped-max

I'd start by testing it with the processing software that comes with it. Did you get that running? That'll let you know if the hardware hookup and arduino code is running.

If you do get that running, then it's just a matter of listening on the right port from [serial].

I've acctually got it working yesterday with the help of serial :) Was way to early here on Cycling.

Did you guys upload the 'Pulse Sensor' sketch in the Arduino IDE from 

 first before using the pulse sensor in Max? Or, did you just use 'Standard Firmata' and then just take the totally raw data from the 'Pulse Sensor' in Max? My thinking is that if I upload that 'Pulse Sensor' sketch from Arduino IDE first, then my data from 'A0' of my pulse would be averaged out already.

In regards to this post,
Did you guys upload the 'Pulse Sensor' sketch in the Arduino IDE from http://pulsesensor.com/ first before using the pulse sensor in Max? Or, did you just use 'Standard Firmata' and then just take the totally raw data from the 'Pulse Sensor' in Max?  My thinking is that if I upload that 'Pulse Sensor' sketch from Arduino IDE first, then my data from 'A0' of my pulse would be averaged out already. 

Hi, I'm a new user of Pulse Sensosr; have you fixed the problems to use this sensor with Max via Arduino?

I'm using it. just getting the data into max through the serial obj.

Yes, I've try to do it, but the sensor just send data as "On" if you touch it, and "Off" if you don't touch it; to releve the pulse I've try to use the original arduino program PulseSensorAmped_Arduino_1dot1.ino, that work very well but don'y communcate to max via serial. I'm not a programmer, so I don't know how modify the PulseSensorAmped_Arduino_1dot1.ino or mix PulseSensorAmped_Arduino_1dot1.ino with Maxuino or similar.

This was ages ago and I got it working! Just made another experiment with them actually. 

https://www.youtube.com/watch?v=DcKTf8BAOf4

In the default Pulse sensor sketch for Arduino you first need to make a change:

Ok? Just upload that and connect your sensor. Next up is the max part. Create the serial object with a rate of 115200, [serial a 115200]. I don't know what port you should use so you can just go from a and see when you get it right. I rarely use max anymore but I think that should be it. You should be receiving the BPM through the serial object.

This was ages ago and I got it working! Just made another experiment with them actually. https://www.youtube.com/watch?v=DcKTf8BAOf4

Ok? Just upload that and connect your sensor. Next up is the max part. Create the serial object with a rate of 115200, [serial a 115200]. I don't know what port you should use so you can just go from a and see when you get it right. I rarely use max anymore but I think that should be it. You should be receiving the BPM through the serial object.


Thanks. but... in the sketch there ar no static boolean serialVisual command, only 2 volatile boolean:

volatile boolean Pulse = false; // true when pulse wave is high, false when it's low

volatile boolean QS = false; // becomes true when Arduoino finds a beat.

This is the up to date original sketch by Pulse Sensor Amped

int pulsePin = 0; // Pulse Sensor purple wire connected to analog pin 0

int blinkPin = 13; // pin to blink led at each beat

int fadePin = 5; // pin to do fancy classy fading blink at each beat

int fadeRate = 0; // used to fade LED on with PWM on fadePin

// these variables are volatile because they are used during the interrupt service routine!

volatile int BPM; // used to hold the pulse rate

volatile int Signal; // holds the incoming raw data

volatile int IBI = 600; // holds the time between beats, the Inter-Beat Interval

pinMode(blinkPin,OUTPUT); // pin that will blink to your heartbeat!

pinMode(fadePin,OUTPUT); // pin that will fade to your heartbeat!

Serial.begin(115200); // we agree to talk fast!

interruptSetup(); // sets up to read Pulse Sensor signal every 2mS

// UN-COMMENT THE NEXT LINE IF YOU ARE POWERING The Pulse Sensor AT LOW VOLTAGE,

// AND APPLY THAT VOLTAGE TO THE A-REF PIN

sendDataToProcessing('S', Signal); // send Processing the raw Pulse Sensor data

if (QS == true){ // Quantified Self flag is true when arduino finds a heartbeat

fadeRate = 255; // Set 'fadeRate' Variable to 255 to fade LED with pulse

sendDataToProcessing('B',BPM); // send heart rate with a 'B' prefix

sendDataToProcessing('Q',IBI); // send time between beats with a 'Q' prefix

QS = false; // reset the Quantified Self flag for next time

fadeRate = constrain(fadeRate,0,255); // keep LED fade value from going into negative numbers!

analogWrite(fadePin,fadeRate); // fade LED

void sendDataToProcessing(char symbol, int data ){

Serial.print(symbol); // symbol prefix tells Processing what type of data is coming

Serial.println(data); // the data to send culminating in a carriage return

Thanks. but... in the sketch there ar no static boolean serialVisual command, only 2 volatile boolean:
volatile boolean Pulse = false;     // true when pulse wave is high, false when it's low
volatile boolean QS = false;        // becomes true when Arduoino finds a beat.

//  VARIABLES
int pulsePin = 0;                 // Pulse Sensor purple wire connected to analog pin 0
int blinkPin = 13;                // pin to blink led at each beat
int fadePin = 5;                  // pin to do fancy classy fading blink at each beat
int fadeRate = 0;                 // used to fade LED on with PWM on fadePin

// these variables are volatile because they are used during the interrupt service routine!
volatile int BPM;                   // used to hold the pulse rate
volatile int Signal;                // holds the incoming raw data
volatile int IBI = 600;             // holds the time between beats, the Inter-Beat Interval
volatile boolean Pulse = false;     // true when pulse wave is high, false when it's low
volatile boolean QS = false;        // becomes true when Arduoino finds a beat.

void setup(){
  pinMode(blinkPin,OUTPUT);         // pin that will blink to your heartbeat!
  pinMode(fadePin,OUTPUT);          // pin that will fade to your heartbeat!
  Serial.begin(115200);             // we agree to talk fast!
  interruptSetup();                 // sets up to read Pulse Sensor signal every 2mS
   // UN-COMMENT THE NEXT LINE IF YOU ARE POWERING The Pulse Sensor AT LOW VOLTAGE,
   // AND APPLY THAT VOLTAGE TO THE A-REF PIN
   //analogReference(EXTERNAL);
}

void loop(){
  sendDataToProcessing('S', Signal);     // send Processing the raw Pulse Sensor data
  if (QS == true){                       // Quantified Self flag is true when arduino finds a heartbeat
        fadeRate = 255;                  // Set 'fadeRate' Variable to 255 to fade LED with pulse
        sendDataToProcessing('B',BPM);   // send heart rate with a 'B' prefix
        sendDataToProcessing('Q',IBI);   // send time between beats with a 'Q' prefix
        QS = false;                      // reset the Quantified Self flag for next time
     }

  delay(20);                             //  take a break
}

void ledFadeToBeat(){
    fadeRate -= 15;                         //  set LED fade value
    fadeRate = constrain(fadeRate,0,255);   //  keep LED fade value from going into negative numbers!
    analogWrite(fadePin,fadeRate);          //  fade LED
  }

void sendDataToProcessing(char symbol, int data ){
    Serial.print(symbol);                // symbol prefix tells Processing what type of data is coming
    Serial.println(data);                // the data to send culminating in a carriage return
  }


Just for info, I've used successfully the Pulse Sensor Amped with a phidgets interface (

http://www.phidgets.com/products.php?category=0&product_id=1011_0

http://www.phidgets.com/products.php?category=0&product_id=1018_2)

Hello,
Just for info, I've used successfully the Pulse Sensor Amped with a phidgets interface (http://www.phidgets.com/products.php?category=0&product_id=1011_0 or http://www.phidgets.com/products.php?category=0&product_id=1018_2)

/* Pulse Sensor Amped 1.4 by Joel Murphy and Yury Gitman 

---------------------- Notes ---------------------- ----------------------

1) Blinks an LED to User's Live Heartbeat PIN 13

https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino/blob/master/README.md

---------------------- ---------------------- ----------------------

// Volatile Variables, used in the interrupt service routine!

volatile int BPM; // int that holds raw Analog in 0. updated every 2mS

volatile int IBI = 600; // int that holds the time interval between beats! Must be seeded!

volatile boolean Pulse = false; // "True" when User's live heartbeat is detected. "False" when not a "live beat".

// Regards Serial OutPut -- Set This Up to your needs

static boolean serialVisual = true; // Set to 'false' by Default. Re-set to 'true' to see Arduino Serial Monitor ASCII Visual Pulse

if (QS == true){ // A Heartbeat Was Found

// Quantified Self "QS" true when arduino finds a heartbeat

digitalWrite(blinkPin,HIGH); // Blink LED, we got a beat.

fadeRate = 255; // Makes the LED Fade Effect Happen

// Set 'fadeRate' Variable to 255 to fade LED with pulse

serialOutputWhenBeatHappens(); // A Beat Happened, Output that to serial.

digitalWrite(blinkPin,LOW); // There is not beat, turn off pin 13 LED

ledFadeToBeat(); // Makes the LED Fade Effect Happen

/*  Pulse Sensor Amped 1.4    by Joel Murphy and Yury Gitman   http://www.pulsesensor.com

----------------------  Notes ----------------------  ----------------------
This code:
1) Blinks an LED to User's Live Heartbeat   PIN 13
2) Fades an LED to User's Live HeartBeat
3) Determines BPM
4) Prints All of the Above to Serial

Read Me:
https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino/blob/master/README.md
 ----------------------       ----------------------  ----------------------
*/

//  Variables
int pulsePin = 0;                 // Pulse Sensor purple wire connected to analog pin 0
int blinkPin = 13;                // pin to blink led at each beat
int fadePin = 5;                  // pin to do fancy classy fading blink at each beat
int fadeRate = 0;                 // used to fade LED on with PWM on fadePin

// Volatile Variables, used in the interrupt service routine!
volatile int BPM;                   // int that holds raw Analog in 0. updated every 2mS
volatile int Signal;                // holds the incoming raw data
volatile int IBI = 600;             // int that holds the time interval between beats! Must be seeded!
volatile boolean Pulse = false;     // "True" when User's live heartbeat is detected. "False" when not a "live beat".
volatile boolean QS = false;        // becomes true when Arduoino finds a beat.

// Regards Serial OutPut  -- Set This Up to your needs
static boolean serialVisual = true;   // Set to 'false' by Default.  Re-set to 'true' to see Arduino Serial Monitor ASCII Visual Pulse 

void setup(){
  pinMode(blinkPin,OUTPUT);         // pin that will blink to your heartbeat!
  pinMode(fadePin,OUTPUT);          // pin that will fade to your heartbeat!
  Serial.begin(115200);             // we agree to talk fast!
  interruptSetup();                 // sets up to read Pulse Sensor signal every 2mS
   // UN-COMMENT THE NEXT LINE IF YOU ARE POWERING The Pulse Sensor AT LOW VOLTAGE,
   // AND APPLY THAT VOLTAGE TO THE A-REF PIN
//   analogReference(EXTERNAL);
}

//  Where the Magic Happens
void loop(){
    serialOutput() ;       

  if (QS == true){     //  A Heartbeat Was Found
                       // BPM and IBI have been Determined
                       // Quantified Self "QS" true when arduino finds a heartbeat
        digitalWrite(blinkPin,HIGH);     // Blink LED, we got a beat.
        fadeRate = 255;         // Makes the LED Fade Effect Happen
                                // Set 'fadeRate' Variable to 255 to fade LED with pulse
        serialOutputWhenBeatHappens();   // A Beat Happened, Output that to serial.
        QS = false;                      // reset the Quantified Self flag for next time
       }
      else { 

      digitalWrite(blinkPin,LOW);            // There is not beat, turn off pin 13 LED
      }

   ledFadeToBeat();                      // Makes the LED Fade Effect Happen
  delay(20);                             //  take a break
}

Hi Max, I try your sketch, but they don¡t work because two errors:

PulseSensors_OK.ino:37:29: error: 'serialOutputWhenBeatHappens' was not declared in this scope

PulseSensors_OK.ino:45:15: error: 'ledFadeToBeat' was not declared in this scope

The original PulseSensor sketch is composed by 2 sketch:

PulseSensorAmped_Arduino_1dot1.ino + Interrupt.ino

Maybe your sketch is composed bay 2 sketch?

PulseSensors_OK.ino:37:29: error: 'serialOutputWhenBeatHappens' was not declared in this scope
PulseSensors_OK.ino:45:15: error: 'ledFadeToBeat' was not declared in this scope

The original PulseSensor sketch is composed by 2 sketch:
PulseSensorAmped_Arduino_1dot1.ino    +    Interrupt.ino

Maybe your sketch is composed bay 2 sketch?


https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino

I have this one. https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino


I'm copy the sketch but I can't compilate it because:

sketch_jan09a.ino: In function 'void setup()':

sketch_jan09a.ino:37:18: error: 'interruptSetup' was not declared in this scope

sketch_jan09a.ino: In function 'void loop()':

sketch_jan09a.ino:47:18: error: 'serialOutput' was not declared in this scope

sketch_jan09a.ino:55:37: error: 'serialOutputWhenBeatHappens' was not declared in this scope

Witch Arduino board are you using? I've two ArduinoUno (last version).

Hi Max, are you sure that it working?
I'm copy the sketch but I can't compilate it because:

sketch_jan09a.ino: In function 'void setup()':
sketch_jan09a.ino:37:18: error: 'interruptSetup' was not declared in this scope
sketch_jan09a.ino: In function 'void loop()':
sketch_jan09a.ino:47:18: error: 'serialOutput' was not declared in this scope
sketch_jan09a.ino:55:37: error: 'serialOutputWhenBeatHappens' was not declared in this scope

Witch Arduino board are you using? I've two ArduinoUno (last version).


But you can't just copy the main sketch, you need all of them. InterruptSetup is in the Interrupt.ino and the other two are in AllSerialHandling.ino.

I found all the sketch and now Arduino works.

Now the problem is that the serial don't receive data; well is another think. I'm try using differents Max patch to read serial data, the most simple is this:

Yas, thank.
I found all the sketch and now Arduino works.
Now the problem is that the serial don't receive data; well is another think. I'm try using differents Max patch to read serial data, the most simple is this:


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                "maxclass" : "button",

                "style" : "",

                "numoutlets" : 1,

                "outlettype" : [ "bang" ],

                "patching_rect" : [ 425.0, 282.0, 24.0, 24.0 ],

                "id" : "obj-7",

                "numinlets" : 1

                "maxclass" : "newobj",

                "text" : "sel 13",

                "numoutlets" : 2,

                "fontface" : 0,

                "fontsize" : 9.0,

                "outlettype" : [ "bang", "" ],

                "patching_rect" : [ 398.0, 218.0, 38.0, 19.0 ],

                "id" : "obj-4",

                "fontname" : "Verdana",

                "numinlets" : 2

                "maxclass" : "comment",

                "text" : "thershold",

                "numoutlets" : 0,

                "patching_rect" : [ 448.0, 465.0, 65.0, 20.0 ],

                "id" : "obj-30",

                "text" : "Usare con skecth\nPing_modificato5\n\ndigital pin 3 trig\ndigital pin 4 echo",

                "linecount" : 5,

                "fontsize" : 16.0,

                "patching_rect" : [ 560.0, 48.0, 196.0, 96.0 ],

                "id" : "obj-21",

                "text" : "_____________________",

                "patching_rect" : [ 254.0, 601.0, 159.0, 20.0 ],

                "id" : "obj-15",

                "numinlets" : 1,

                "textcolor" : [ 0.784314, 0.145098, 0.023529, 1.0 ]

                "maxclass" : "toggle",

                "outlettype" : [ "int" ],

                "patching_rect" : [ 407.0, 594.5, 24.0, 24.0 ],

                "id" : "obj-9",

                "parameter_enable" : 0,

                "text" : "change",

                "numoutlets" : 3,

                "outlettype" : [ "", "int", "int" ],

                "patching_rect" : [ 254.0, 289.0, 50.0, 22.0 ],

                "id" : "obj-6",

                "text" : "< 50",

                "patching_rect" : [ 407.0, 465.0, 34.0, 22.0 ],

                "id" : "obj-3",

                "maxclass" : "message",

                "text" : "$1 750",

                "outlettype" : [ "" ],

                "patching_rect" : [ 254.0, 359.0, 47.0, 22.0 ],

                "id" : "obj-25",

                "text" : "line",

                "outlettype" : [ "", "" ],

                "patching_rect" : [ 254.0, 388.0, 40.0, 22.0 ],

                "id" : "obj-2",

                "numinlets" : 3

                "maxclass" : "slider",

                "patching_rect" : [ 254.0, 459.5, 89.0, 186.0 ],

                "id" : "obj-22",

                "size" : 500.0,

                "maxclass" : "number",

                "htricolor" : [ 0.87, 0.82, 0.24, 1.0 ],

                "fontsize" : 12.0,

                "outlettype" : [ "", "bang" ],

                "triscale" : 0.9,

                "bgcolor" : [ 0.866667, 0.866667, 0.866667, 1.0 ],

                "patching_rect" : [ 254.0, 415.0, 37.0, 22.0 ],

                "tricolor" : [ 0.75, 0.75, 0.75, 1.0 ],

                "id" : "obj-20",

                "fontname" : "Arial",

                "textcolor" : [ 0.0, 0.0, 0.0, 1.0 ]

                "text" : "speedlim 750",

                "patching_rect" : [ 254.0, 328.0, 82.0, 22.0 ],

                "id" : "obj-18",

                "text" : "10",

                "patching_rect" : [ 110.0, 202.0, 106.0, 22.0 ],

                "id" : "obj-1",

                "text" : "p createMenu",

                "patching_rect" : [ 427.0, 164.0, 72.0, 19.0 ],

                "id" : "obj-16",

                "patcher" :                 {

                    "fileversion" : 1,

                    "appversion" :                     {

                        "major" : 7,

Pulse sensor amped + Max