Photon stopped publishing to console and cannot reconnect

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1

Hi: I was recently catching up on some hobby devices I have connected and discovered they stopped publishing to the console back on January 2, 2023? I started reading troubleshooting articles and testing old code etc. but cannot get any of them to publish data to the console like before. I checked that I have delays for frequency, updated firmware, and I am not maxed out on the sandbox data usage. Did something change in publishing requirements for photon (1.0) around this time?

Here is a snip of some of the basic code I have been using:

void setup() {     
  Blynk.begin(auth);
  // Set variable  
  Particle.variable("i2cdevice","ADXL345");  
  Particle.variable("xAccl",xAccl);  
  Particle.variable("yAccl",yAccl);  
  Particle.variable("zAccl",zAccl);    

  // Initialise I2C communication as MASTER   
  Wire.begin();  
  // Initialise serial communication, set baud rate = 9600  
  Serial.begin(9600);
  // Start I2C transmission  
  Wire.beginTransmission(Addr);  
  // Select bandwidth rate register  
  Wire.write(0x2C);  
  // Select output data rate = 100 Hz  
  Wire.write(0x0A);  
  // Stop I2C Transmission  
  Wire.endTransmission();
  // Start I2C transmission  
  Wire.beginTransmission(Addr);  
  // Select power control register  
  Wire.write(0x2D);  
  // Select auto sleep disable  
  Wire.write(0x08);  
  // Stop I2C transmission  
  Wire.endTransmission();
  // Start I2C transmission  
  Wire.beginTransmission(Addr);  
  // Select data format register  
  Wire.write(0x31);  
  // Select full resolution, +/-2g (0X08) , for 16g it shoudl be (0x0B)
  Wire.write(0x0B);  
  // End I2C transmission  
  Wire.endTransmission();  
  delay(300);
}

void loop() {  
  ///Blynk.Run();
  unsigned int data[6];  

  for(int i = 0; i < 6; i++) {    
    // Start I2C transmission    
    Wire.beginTransmission(Addr);    
    // Select data register    
    Wire.write((50+i));    
    // Stop I2C transmission    
    Wire.endTransmission();
    // Request 1 byte of data from the device    
    Wire.requestFrom(Addr,1);    
    // Read 6 bytes of data    
    // xAccl lsb, xAccl msb, yAccl lsb, yAccl msb, zAccl lsb, zAccl msb    
    if(Wire.available()==1) {      
      data[i] = Wire.read();    
    }  
    delay(300);  
  }

  // Convert the data to 10-bits  
  int xAccl = (((data[1] & 0x03) * 256) + data[0]); 
  if(xAccl > 511) {    
    xAccl -= 1024;  
  }  
  int yAccl = (((data[3] & 0x03) * 256) + data[2]); 
  if(yAccl > 511) {    
    yAccl -= 1024;  
  }  
  int zAccl = (((data[5] & 0x03) * 256) + data[4]);  
  if(zAccl > 511) {    
    zAccl -= 1024;  
  }
  //convert to G's************************************
  ///xg1 = 4/(1023*xAccl) + (2/1023);
  ///yg1 = 4/(1023*yAccl) + (2/1023);
  ///zg1 = 4/(1023*zAccl) + (2/1023);
  //convert to G's*************************************
  // Output data to dashboard  
  Particle.publish("Acceleration in X-Axis is :", String(xAccl));  
  Particle.publish("Acceleration in Y-Axis is :", String(yAccl));  
  Particle.publish("Acceleration in Z-Axis is :", String(zAccl));
  ....
2

Hi and welcome to the community!
It could be that blynk is the issue there, since the old blynk (which you may potentially be using) has been deprecated:

What happens if you comment out blynk.begin() and maybe other blynk calls to find out if it is the case?
Cheers

1 Like
3

Have you made sure that your Particle.publish() calls don't run into the rate limit?
Additionally, is it intentional to have Blynk.run() commented out?

4

Hi: I took the advice provided to remove the old Blynk code and that fixed it. My sensors are now reporting on the console. Thanks for the help.

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