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+--- Thread: Arduino Nano - Phyphox (/showthread.php?tid=2029)
Arduino Nano - Phyphox - Fredrik Frisk - 10-22-2024
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);
}
}
RE: Arduino Nano - Phyphox - Jens Noriʇzsɔɥ - 10-22-2024
Hi Fredrik,
as far as I remember, the hardware changed in Rev 2, so you need other drivers to access the sensors. Our friends in Paris, https://vulgarisation.fr/projet/arduino_nano/?lang=en, ran in a similar problem and you should find the correct libraries in their sketch.
RE: Arduino Nano - Phyphox - Fredrik Frisk - 10-22-2024
(10-22-2024, 09:42 AM)Jens Noriʇzsɔɥ Wrote: Hi Fredrik,
as far as I remember, the hardware changed in Rev 2, so you need other drivers to access the sensors. Our friends in Paris, https://vulgarisation.fr/projet/arduino_nano/?lang=en, ran in a similar problem and you should find the correct libraries in their sketch.
Thanks Jens!
That would explain it. I will use the link you have provided.
/Fredrik
RE: Arduino Nano - Phyphox - Jens Noriʇzsɔɥ - 10-22-2024
For the sake of completeness,
Code:
#include <Arduino_BMI270_BMM150.h> // IMU: acceleration, rotation rate, magnetic field
#include <Arduino_LPS22HB.h> // pressure
#include <Arduino_HS300x.h> // temperature and humidity
#include <Arduino_APDS9960.h> // gestures, color, proximityRE: Arduino Nano - Phyphox - Fredrik Frisk - 10-22-2024
(10-22-2024, 10:01 AM)Jens Noriʇzsɔɥ Wrote: For the sake of completeness,
works for the Arduino Nano 33 BLE Sense Rev2.Code:#include <Arduino_BMI270_BMM150.h> // IMU: acceleration, rotation rate, magnetic field
#include <Arduino_LPS22HB.h> // pressure
#include <Arduino_HS300x.h> // temperature and humidity
#include <Arduino_APDS9960.h> // gestures, color, proximity
Thanks again Jens!
I have tested this sketch and downloaded corresponding experiments from
https://astro-lab.app/arduino-und-phyphox/
using their QR-code to set it up. The QR-code from the french site,
file:///C:/Users/frf/Downloads/tuto_phyphox_en_ppt_ajour.pdf
never loaded, but I found the link to astro-lab and their QR-worked.
/Fredrik
RE: Arduino Nano - Phyphox - Jens Noriʇzsɔɥ - 10-22-2024
Physics Reimagined finally switched their web preference to their own domain and you just found an old link. I have sent Fred an email so that they can update it, too. Thanks for reporting.
RE: Arduino Nano - Phyphox - fbouquet - 10-22-2024
(10-22-2024, 02:32 PM)Jens Noriʇzsɔɥ Wrote: Physics Reimagined finally switched their web preference to their own domain and you just found an old link. I have sent Fred an email so that they can update it, too. Thanks for reporting.
Hello,
Indeed, we switch our website due to "unforeseen circumstances" (a cyberattack on our university website...). Sorry about the link you found, I forgot to update the pdf file during the switch. It is now fixed. (You may have to force-reload the webpage to have the newest version.)
Good luck with your experiments,
Fred