Arduino Nano - Phyphox

[Fredrik Frisk]

Hi,

I am currently designing an experiment for my course in Edge ML and the idea is to use arduino nano BLE 33 sense for data aquision and ML inference. I have connected the board via BLE to Phyphox and it has worked well. But I have now migrated to the rev 2 version of the board and now I do not get any data from the board. I hope someone have some idea what is wrong.

thanks,

Fredrik

My sketch:

#include <phyphoxBle.h>
#include <Arduino_LSM9DS1.h>
void setup()
{
   PhyphoxBLE::start("IMU - Gyroscope");
   //Experiment
   PhyphoxBleExperiment PlotAcc;  
   PlotAcc.setTitle("Gyroscope Plotter");
   PlotAcc.setCategory("Arduino Experiments");
   PlotAcc.setDescription("Plots angular velocity measured by the Arduino card's sensors");
   //View
   PhyphoxBleExperiment::View firstView;
   firstView.setLabel("FirstView"); //Create a "view"
   //Graph
   PhyphoxBleExperiment::Graph firstGraph;          
   firstGraph.setLabel("X Rotatation over time");
   firstGraph.setUnitX("s");
   firstGraph.setUnitY("deg/s");
   firstGraph.setLabelX("time");
   firstGraph.setLabelY("X Rotation");
   /* Assign Channels, so which data is plotted on x or y axis
   *  first parameter represents x-axis, second y-axis
   *  Channel 0 means a timestamp is created after the BLE package arrives in phyphox
   *  Channel 1 to N corresponding to the N-parameter which is written in server.write()
   */
   firstGraph.setChannel(0,1);    
   PhyphoxBleExperiment::Graph secondGraph;          
   secondGraph.setLabel("Y Rotation over time");
   secondGraph.setUnitX("s");
   secondGraph.setUnitY("deg/s");
   secondGraph.setLabelX("time");
   secondGraph.setLabelY("Y Rotation");
   
   secondGraph.setChannel(0,2);
   PhyphoxBleExperiment::Graph thirdGraph;          
   thirdGraph.setLabel("Z Rotation over time");
   thirdGraph.setUnitX("s");
   thirdGraph.setUnitY("deg/s");
   thirdGraph.setLabelX("time");
   thirdGraph.setLabelY("Z Rotation");
   
   thirdGraph.setChannel(0,3);
   firstView.addElement(firstGraph);            //attach graph to view
   firstView.addElement(secondGraph);
   firstView.addElement(thirdGraph);
   PlotAcc.addView(firstView);         //Attach view to experiment
     //Export
   PhyphoxBleExperiment::ExportSet mySet;       //Provides exporting the data to excel etc.
   mySet.setLabel("mySet");
   PhyphoxBleExperiment::ExportData gx;
   gx.setLabel("gx");
   gx.setDatachannel(1);
   PhyphoxBleExperiment::ExportData gy;
   gy.setLabel("gy");
   gy.setDatachannel(2);
   PhyphoxBleExperiment::ExportData gz;
   gz.setLabel("gz");
   gz.setDatachannel(3);
   mySet.addElement(gx);                   //attach data to exportSet
   mySet.addElement(gy);      
   mySet.addElement(gz);                  //attach data to exportSet
   PlotAcc.addExportSet(mySet);        //attach exportSet to experiment
   PhyphoxBLE::addExperiment(PlotAcc);      //Attach experiment to server
   
   if (!IMU.begin()) {
     while (1);
   }
}
void loop()
{
  float gx, gy, gz;
  if (IMU.gyroscopeAvailable()) {
    IMU.readGyroscope(gx, gy, gz);
    PhyphoxBLE::write(gx, gy, gz);
   
  }
}