09-15-2023, 09:07 PM
(09-15-2023, 03:45 PM)Jens Noritzsch Wrote: What are you using on the Arduino side: phyphoxBLE? I would likely use our library for both microcontrollers and merge the two generated experiments into one by a text editor.
On first sight, both BLE characteristics write into the same buffer, accordingly you have two identical graphs. I assume that is not intended…
Answers to some of your questions:
- the UUID is (mainly) a generic identifier for heart rate monitors, HID services etc.,
- “notification” mode lets the microcontroller set the rate, we mainly use this ourselves,
- phyphox does not record data before tapping start, so likely no subscribeOnStart required
- conversion indicates to phyphox how the data is transmitted, float or integer requires the lowest amount of data (again: phyphoxBLE would take care of that and you could look into the generated experiment)
There is some documentation on Bluetooth Low Energy in phyphox at https://phyphox.org/wiki/index.php/Bluetooth_Low_Energy
Thank you very much Jens,
I've tried the solution you suggested but I couldn't upload the sketch on the board as it gives my error.
This is the sketch I've written following the example that I found on github "CreateExperiment"
Code:
#include <phyphoxBle.h>
#include <Arduino_LSM6DS3.h>
void setup()
{
Serial.begin(115200);
PhyphoxBLE::start("get_acc");
//Experiment
PhyphoxBleExperiment GetACC_From_ARDUINO;
GetACC_From_ARDUINO.setTitle("get_acc");
GetACC_From_ARDUINO.setCategory("Arduino Experiments");
GetACC_From_ARDUINO.setDescription("Random numbers are generated on Arduino and visualized with phyphox afterwards");
//View
PhyphoxBleExperiment::View firstView;
firstView.setLabel("FirstView"); //Create a "view"
//PhyphoxBleExperiment::View secondView;
//secondView.setLabel("SecondView"); //Create a "view"
//Graph
PhyphoxBleExperiment::Graph firstGraph; //Create graph which will plot random numbers over time
firstGraph.setMinY(0, LAYOUT_FIXED);
firstGraph.setMaxY(1000, LAYOUT_FIXED);
firstGraph.setLabel("Acceleration");
firstGraph.setUnitX("s");
firstGraph.setUnitY("m/s^2");
firstGraph.setLabelX("time");
firstGraph.setLabelY("Acc");
firstGraph.setXPrecision(1); //The amount of digits shown after the decimal point
firstGraph.setYPrecision(1);
/* 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);
//Second Graph
PhyphoxBleExperiment::Graph secondGraph; //Create graph which will plot random numbers over time
secondGraph.setMinY(0, LAYOUT_FIXED);
secondGraph.setMaxY(1000, LAYOUT_FIXED);
secondGraph.setLabel("Acceleration");
secondGraph.setUnitX("s");
secondGraph.setUnitY("m/s^2");
secondGraph.setLabelX("time");
secondGraph.setLabelY("Acc");
secondGraph.setXPrecision(1); //The amount of digits shown after the decimal point
secondGraph.setYPrecision(1);
/* 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()
*/
secondGraph.setChannel(0, 2);
//Third Graph
PhyphoxBleExperiment::Graph thirdGraph; //Create graph which will plot random numbers over time
thirdGraph.setMinY(0, LAYOUT_FIXED);
thirdGraph.setMaxY(1000, LAYOUT_FIXED);
thirdGraph.setLabel("Acceleration");
thirdGraph.setUnitX("s");
thirdGraph.setUnitY("m/s^2");
thirdGraph.setLabelX("time");
thirdGraph.setLabelY("Acc");
thirdGraph.setXPrecision(1); //The amount of digits shown after the decimal point
thirdGraph.setYPrecision(1);
/* 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()
*/
thirdGraph.setChannel(0, 3);
//Info
//PhyphoxBleExperiment::InfoField myInfo; //Creates an info-box.
//myInfo.setInfo("This is an Info field!");
//myInfo.setColor("890128"); //Sets font color. Uses a 6 digit hexadecimal value in "quotation marks".
//myInfo.setXMLAttribute("size=\"1.2\"");
//Separator
//PhyphoxBleExperiment::Separator mySeparator; //Creates a line to separate elements.
//mySeparator.setHeight(0.3); //Sets height of the separator.
//mySeparator.setColor("404040"); //Sets color of the separator. Uses a 6 digit hexadecimal value in "quotation marks".
//Value
//PhyphoxBleExperiment::Value myValue; //Creates a value-box.
//myValue.setLabel("Number"); //Sets the label
//myValue.setPrecision(2); //The amount of digits shown after the decimal point.
//myValue.setUnit("unit"); //The physical unit associated with the displayed value.
//myValue.setColor("FFFFFF"); //Sets font color. Uses a 6 digit hexadecimal value in "quotation marks".
//myValue.setChannel(0);
//myValue.setXMLAttribute("size=\"2\"");
//Export
PhyphoxBleExperiment::ExportSet mySet; //Provides exporting the data to excel etc.
mySet.setLabel("mySet");
PhyphoxBleExperiment::ExportData myData1;
myData1.setLabel("myData1");
myData1.setDatachannel(1);
PhyphoxBleExperiment::ExportData myData2;
myData2.setLabel("myData2");
myData2.setDatachannel(2);
PhyphoxBleExperiment::ExportData myData3;
myData3.setLabel("myData3");
myData3.setDatachannel(3);
//attach to experiment
firstView.addElement(firstGraph); //attach graph to view
firstView.addElement(secondGraph); //attach second graph to view
firstView.addElement(thirdGraph); //attach second graph to view
//secondView.addElement(myInfo); //attach info to view
//secondView.addElement(mySeparator); //attach separator to view
//secondView.addElement(myValue); //attach value to view
GetACC_From_ARDUINO.addView(firstView); //attach view to experiment
mySet.addElement(myData1); //attach data to exportSet
mySet.addElement(myData2); //attach data to exportSet
mySet.addElement(myData3); //attach data to exportSet
GetACC_From_ARDUINO.addExportSet(mySet); //attach exportSet to experiment
PhyphoxBLE::addExperiment(GetACC_From_ARDUINO); //attach experiment to server
}
void loop()
{
float x, y, z;
IMU.readAcceleration(x, y, z);
/* The random number is written into Channel 1
Up to 5 Channels can written at the same time with server.write(randomDistance, valueChannel2, valueChannel3.. )
*/
PhyphoxBLE::write(x,y,z);
delay(50);
PhyphoxBLE::poll(); //Only required for the Arduino Nano 33 IoT, but it does no harm for other boards.
}when I try to upload the sketch I get this error
Code:
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp: In member function 'virtual PhyphoxBleExperiment::Error PhyphoxBleExperiment::Errorhandler::err_checkLength(const char*, int, const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:8:55: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_01, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:8:55: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_01, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp: In member function 'virtual PhyphoxBleExperiment::Error PhyphoxBleExperiment::Errorhandler::err_checkUpper(int, int, const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:16:55: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_02, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:16:55: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_02, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp: In member function 'virtual PhyphoxBleExperiment::Error PhyphoxBleExperiment::Errorhandler::err_checkHex(const char*, const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:24:55: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_03, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:24:55: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_03, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:28:59: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_03, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:28:59: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_03, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp: In member function 'virtual PhyphoxBleExperiment::Error PhyphoxBleExperiment::Errorhandler::err_checkStyle(const char*, const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:37:55: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_04, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:37:55: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_04, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp: In member function 'virtual PhyphoxBleExperiment::Error PhyphoxBleExperiment::Errorhandler::err_checkLayout(const char*, const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:44:51: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_05, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:44:51: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_05, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp: In member function 'virtual PhyphoxBleExperiment::Error PhyphoxBleExperiment::Errorhandler::err_checkSensor(const char*, const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:51:55: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_04, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:51:55: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_04, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp: In member function 'virtual PhyphoxBleExperiment::Error PhyphoxBleExperiment::Errorhandler::err_checkComponent(const char*, const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:59:55: error: 'string' is not a member of 'std'
copyToMem(&ret.MESSAGE, ("ERR_04, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\errorhandler.cpp:59:55: note: suggested alternative: 'trunc'
copyToMem(&ret.MESSAGE, ("ERR_04, in " + std::string(origin) + "(). \n").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\element.cpp: In member function 'virtual void PhyphoxBleExperiment::Element::setLabel(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\element.cpp:6:26: error: 'string' is not a member of 'std'
copyToMem(&LABEL, (std::string(l)).c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\element.cpp:6:26: note: suggested alternative: 'trunc'
copyToMem(&LABEL, (std::string(l)).c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\edit.cpp: In member function 'void PhyphoxBleExperiment::Edit::setUnit(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\edit.cpp:7:28: error: 'string' is not a member of 'std'
copyToMem(&UNIT, (std::string(u)).c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\edit.cpp:7:28: note: suggested alternative: 'trunc'
copyToMem(&UNIT, (std::string(u)).c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\edit.cpp: In member function 'void PhyphoxBleExperiment::Edit::setXMLAttribute(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\edit.cpp:24:39: error: 'string' is not a member of 'std'
copyToMem(&XMLAttribute, (" " + std::string(xml)).c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\edit.cpp:24:39: note: suggested alternative: 'trunc'
copyToMem(&XMLAttribute, (" " + std::string(xml)).c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportSet.cpp: In member function 'void PhyphoxBleExperiment::ExportSet::setLabel(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportSet.cpp:16:39: error: 'string' is not a member of 'std'
copyToMem(&LABEL, (" name=\"" + std::string(l) + "\"").c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportSet.cpp:16:39: note: suggested alternative: 'trunc'
copyToMem(&LABEL, (" name=\"" + std::string(l) + "\"").c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportSet.cpp: In member function 'void PhyphoxBleExperiment::ExportSet::setXMLAttribute(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportSet.cpp:20:39: error: 'string' is not a member of 'std'
copyToMem(&XMLAttribute, (" " + std::string(xml)).c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportSet.cpp:20:39: note: suggested alternative: 'trunc'
copyToMem(&XMLAttribute, (" " + std::string(xml)).c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\experiment.cpp: In member function 'void PhyphoxBleExperiment::setColor(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\experiment.cpp:73:26: error: 'string' is not a member of 'std'
copyToMem(&COLOR, (std::string(c)).c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\experiment.cpp:73:26: note: suggested alternative: 'trunc'
copyToMem(&COLOR, (std::string(c)).c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportdata.cpp: In member function 'void PhyphoxBleExperiment::ExportData::setXMLAttribute(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportdata.cpp:11:40: error: 'string' is not a member of 'std'
copyToMem(&XMLAttribute, (" " + std::string(xml)).c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportdata.cpp:11:40: note: suggested alternative: 'trunc'
copyToMem(&XMLAttribute, (" " + std::string(xml)).c_str());
^~~~~~
trunc
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportdata.cpp: In member function 'virtual void PhyphoxBleExperiment::ExportData::setLabel(const char*)':
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportdata.cpp:16:26: error: 'string' is not a member of 'std'
copyToMem(&LABEL, (std::string(l)).c_str());
^~~~~~
C:\Users\paolo\Documents\Arduino\libraries\phyphox_BLE\src\exportdata.cpp:16:26: note: suggested alternative: 'trunc'
copyToMem(&LABEL, (std::string(l)).c_str());
^~~~~~
trunc
exit status 1
Compilation error: exit status 1I've even tried to upload the original CreateExperiment skech but it gives me the same error
I'm stuck here for now.