How to run cayenne continously with heart pulse in my code?

i need cayenne to work countinously with the amped heart sensor,i used the instruction;
but i have the following problem error: ‘class CayenneMQTTWiFiClient’ has no member named ‘run’;

could you help me with that? is for old library. You need to use Cayenne.loop()

1 Like

i used cayenne.loop(); and y code is compiled well but nothing appears on cayenne or either lcd,here is my code:


#include <Ticker.h>

#include <SPI.h>

#include <Wire.h>

#include <LiquidCrystal.h>

#include <ESP8266WiFi.h>

#include <CayenneMQTTESP8266.h>

#include "CayenneDefines.h"

// identify function

void   interruptSetup();

// WiFi network info.

char ssid[] = "ramia.m";

char wifiPassword[] = "0933am471100am+";

// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.

char username[] = "";

char password[] = "";

char clientID[] = "";

// The Ticker/flipper routine

Ticker flipper;


int blinkPin = 15;                // pin to blink led at each beat

int fadePin = 13;                 // 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, must be seeded!

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.


// initialize the library by associating any needed LCD interface pin

// with the arduino pin number it is connected to

const int rs = 5, en = 4, d4 = 0, d5 = 2, d6 = 14, d7 = 12;

LiquidCrystal lcd(rs, en, d4,d5,d6,d7);

void setup(){


lcd.begin(16, 2);




lcd.clear() ;

lcd.print("Haya & Marie");


lcd.clear() ;

while (WiFi.status() != WL_CONNECTED) {



lcd.clear() ;

lcd.print("connected via IP: ");





// Clear the buffer.

lcd.clear() ;


//cayenne new

//#define EspSerial Serial1


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

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

Serial.begin(9600);             // we agree to talk fast!


// sets up to read Pulse Sensor signal every 2mS

Cayenne.begin(username, password, clientID, ssid, wifiPassword);


void loop(){

lcd.clear() ;

lcd.print(" BPM = ");



//        lcd.clear() ;

//        lcd.print("  IBI = ");

//        lcd.print(IBI);

//        delay(500);

lcd.clear() ;

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





//  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


volatile int rate[10];                    // array to hold last ten IBI values

volatile unsigned long sampleCounter = 0; // used to determine pulse timing

volatile unsigned long lastBeatTime = 0;  // used to find IBI

volatile int P =512;                      // used to find peak in pulse wave, seeded

volatile int T = 512;                     // used to find trough in pulse wave, seeded

volatile int thresh = 512;                // used to find instant moment of heart beat, seeded

volatile int amp = 100;                   // used to hold amplitude of pulse waveform, seeded

volatile boolean firstBeat = true;        // used to seed rate array so we startup with reasonable BPM

volatile boolean secondBeat = false;      // used to seed rate array so we startup with reasonable BPM

void interruptSetup(){

// Initializes Ticker to have flipper run the ISR to sample every 2mS as per original Sketch.

flipper.attach_ms(2, ISRTr);



// Ticker makes sure that we take a reading every 2 miliseconds

void ISRTr(){                         // triggered when flipper fires....

cli();                               // disable interrupts while we do this

Signal = analogRead(A0);              // read the Pulse Sensor

sampleCounter += 2;                         // keep track of the time in mS with this variable

int N = sampleCounter - lastBeatTime;       // monitor the time since the last beat to avoid noise

//  find the peak and trough of the pulse wave

if(Signal < thresh && N > (IBI/5)*3){       // avoid dichrotic noise by waiting 3/5 of last IBI

if (Signal < T){                        // T is the trough

T = Signal;                         // keep track of lowest point in pulse wave



if(Signal > thresh && Signal > P){          // thresh condition helps avoid noise

P = Signal;                             // P is the peak

}                                        // keep track of highest point in pulse wave


// signal surges up in value every time there is a pulse

if (N > 250){                                   // avoid high frequency noise

if ( (Signal > thresh) && (Pulse == false) && (N > (IBI/5)*3) ){

Pulse = true;                               // set the Pulse flag when we think there is a pulse

digitalWrite(blinkPin,HIGH);                // turn on pin 13 LED

IBI = sampleCounter - lastBeatTime;         // measure time between beats in mS

lastBeatTime = sampleCounter;               // keep track of time for next pulse

if(secondBeat){                        // if this is the second beat, if secondBeat == TRUE

secondBeat = false;                  // clear secondBeat flag

for(int i=0; i<=9; i++){             // seed the running total to get a realisitic BPM at startup

rate[i] = IBI;



if(firstBeat){                         // if it's the first time we found a beat, if firstBeat == TRUE

firstBeat = false;                   // clear firstBeat flag

secondBeat = true;                   // set the second beat flag

sei();                               // enable interrupts again

return;                              // IBI value is unreliable so discard it


// keep a running total of the last 10 IBI values

word runningTotal = 0;                  // clear the runningTotal variable

for(int i=0; i<=8; i++){                // shift data in the rate array

rate[i] = rate[i+1];                  // and drop the oldest IBI value

runningTotal += rate[i];              // add up the 9 oldest IBI values


rate[9] = IBI;                          // add the latest IBI to the rate array

runningTotal += rate[9];                // add the latest IBI to runningTotal

runningTotal /= 10;                     // average the last 10 IBI values

BPM = 60000/runningTotal;               // how many beats can fit into a minute? that's BPM!

QS = true;                              // set Quantified Self flag




if (Signal < thresh && Pulse == true){   // when the values are going down, the beat is over

digitalWrite(blinkPin,LOW);            // turn off pin 13 LED

Pulse = false;                         // reset the Pulse flag so we can do it again

amp = P - T;                           // get amplitude of the pulse wave

thresh = amp/2 + T;                    // set thresh at 50% of the amplitude

P = thresh;                            // reset these for next time

T = thresh;


if (N > 2500){                           // if 2.5 seconds go by without a beat

thresh = 512;                          // set thresh default

P = 512;                               // set P default

T = 512;                               // set T default

lastBeatTime = sampleCounter;          // bring the lastBeatTime up to date

firstBeat = true;                      // set these to avoid noise

secondBeat = false;                    // when we get the heartbeat back


Cayenne.virtualWrite(V13, BPM , "analog_sensor", "null");

sei();                                   // enable interrupts when youre done!

}// end isr

Follow this tutorial and first get your device connected to cayenne Adding a New Device using MQTT

1 Like

hi haya.mansour

Have you successfully connected the heart rate sensor to Cayenne?
I hope you reply my email. thank you

from sarah

do not create multiple post on same topic.

owh i’m sorry