Photon Stuck in Green Breathing

Photon Stuck in green breathing after uploading a new app. Initially appears to connect to the cloud and then disconnects. Looking for help in clearing the app to determine what went wrong. Believe I may have pushed the delay in my app a little too far.

Thanks

We can’t help you without seeing your code.

// This #include statement was automatically added by the Particle IDE.
#include "blynk/blynk.h"

// This #include statement was automatically added by the Particle IDE.
#include "PietteTech_DHT/PietteTech_DHT.h"

// system defines
#define DHTTYPE  DHT22              // Sensor type DHT11/21/22/AM2301/AM2302
#define DHTPIN   2         	    // Digital pin for communications
#define DHT_SAMPLE_INTERVAL   60000  // Sample every minute

//declaration
void dht_wrapper(); // must be declared before the lib initialization

// Lib instantiate
PietteTech_DHT DHT(DHTPIN, DHTTYPE, dht_wrapper);

// globals
unsigned int DHTnextSampleTime;	    // Next time we want to start sample
bool bDHTstarted;		    // flag to indicate we started acquisition
int n;                              // counter

//this is coming from http://www.instructables.com/id/Datalogging-with-Spark-Core-Google-Drive/?ALLSTEPS
char resultstr[64]; //String to store the sensor data

//DANGER - DO NOT SHARE!!!!
char auth[] = ""; // Put your blynk token here
//DANGER - DO NOT SHARE!!!!

char VERSION[64] = "0.04";

#define READ_INTERVAL 60000

void setup()
{

  Blynk.begin(auth);
 
 DHTnextSampleTime = 0;  // Start the first sample immediately
 Particle.variable("result", resultstr, STRING);

 Particle.publish("DHT22 - firmware version", VERSION, 60, PRIVATE);
 
}


// This wrapper is in charge of calling
// must be defined like this for the lib work
void dht_wrapper() {
    DHT.isrCallback();
}

void loop()
{

  Blynk.run(); // all the Blynk magic happens here
 

  // Check if we need to start the next sample
  if (millis() > DHTnextSampleTime) {
      
	if (!bDHTstarted) {		// start the sample
	    DHT.acquire();
	    bDHTstarted = true;
	}

 if (!DHT.acquiring()) {		// has sample completed?

  float temp = (float)DHT.getCelsius();
  int temp1 = (temp - (int)temp) * 100;

  char tempInChar[32];
  sprintf(tempInChar,"%0d.%d", (int)temp, temp1);
  Particle.publish("The temperature from the dht22 is:", tempInChar, 60, PRIVATE);

  //virtual pin 1 will be the temperature
  Blynk.virtualWrite(V1, tempInChar);
 
  //google docs can get this variable
  sprintf(resultstr, "{\"t\":%s}", tempInChar);

  float humid = (float)DHT.getHumidity();
  int humid1 = (humid - (int)humid) * 100;

  sprintf(tempInChar,"%0d.%d", (int)humid, humid1);
  Particle.publish("The humidity from the dht22 is:", tempInChar, 60, PRIVATE);

  //virtual pin 2 will be the humidity
  Blynk.virtualWrite(V2, tempInChar);

  n++;  // increment counter
  bDHTstarted = false;  // reset the sample flag so we can take another
  DHTnextSampleTime = millis() + DHT_SAMPLE_INTERVAL;  // set the time for next sample
 }
 
}

}

Please edit your post to format your code. It needs to be done like this,

2 Likes

One possible problem could be the Blynk.begin(auth) line. I tested that with no auth string or an incorrect auth string, and I got the breathing green after initially connecting. You should put some Serial print statements in a couple of places to see what parts of your code are executing.

After Edit:

I just found a DHT22 in my stuff, and I tested your code. It works fine for me with a proper auth code.

2 Likes

Maybe it gets stuck in some loop inside dht22 library and connectivity to the cloud is lost. I remember I faced something similar some time ago but I don’t remember where exactly.

At this point I’d just like to get the app off so I try again. How can I stop this app and get it to connect to the ide again so I can make some changes?

@fritts, simply put your photon in safe mode.

1 Like