phyphoxBLE mit 6 Variablen

[Dominik Dorsel]

Hallo,

inzwischen ist das angekündigte Update veröffentlicht! Ich hab mal ein Beispielexperiment erstellt, in dem 6 Werte übertragen und in jeweils einem Graph bzw. einem Value Feld angezeigt werden. Dabei habe ich dann allerdings festgestellt, dass wir das Thema Speicheroptimierung dringend angehen müssen. Als ersten Workaround habe ich die Speicherintensive Experimenterstellung in einen extra "Task" übergeben.
Wir haben auch schon erste Lösungsideen mit der wir das Speicherproblem entschärfen können, benötigen allerdings noch ein wenig Zeit dafür. Ich hoffe der Workaround ist halbwegs verständlich, falls es irgendwo hängt gerne nachfragen!

Falls Arduino Nano User mitlesen: Das Beispiel funktioniert nur mit einem ESP32, die Firmware des Arduino Nano BLE ermöglicht leider nur eine Paketgröße von 20 Byte (obwohl die Hardware mehr könnte).

Viele Grüße
Dominik

Code:

#include <phyphoxBle.h> void setup() {   PhyphoxBLE::start("My Device");   PhyphoxBLE::setMTU(48); //6 float values 6*4 = 24 bytes   // An extra task takes care of the experiment creation   xTaskCreate(     generateExperiment,    // Function that should be called     "experimentTask",   // Name of the task (for debugging)     16000,            // Stack size (bytes)     NULL,            // Parameter to pass     1,               // Task priority     NULL             // Task handle   );   } void loop() {   float value1 = 1+ 0.1*random(0, 10);   float value2 = 2+ 0.1*random(0, 10);   float value3 = 3+ 0.1*random(0, 10);   float value4 = 4+ 0.1*random(0, 10);   float value5 = 5+ 0.1*random(0, 10);   float value6 = 6+ 0.1*random(0, 10);   // store 6 float values in an array   float values[6] = {value1,value2,value3,value4,value5,value6};   //send the 6 float values   PhyphoxBLE::write(&values[0],6);   delay(100); } void generateExperiment(void * parameter){   //Experiment   PhyphoxBleExperiment receiveSixFloats;   //generate experiment on Arduino which plot random values   receiveSixFloats.numberOfChannels = 6;   receiveSixFloats.setTitle("Random Number Plotter");   receiveSixFloats.setCategory("Arduino Experiments");   receiveSixFloats.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"     //Value 1   PhyphoxBleExperiment::Graph Graph1;      //Create graph which will plot random numbers over time   Graph1.setLabel("Value 1");   Graph1.setUnitX("s");   Graph1.setUnitY("");   Graph1.setLabelX("time");   Graph1.setLabelY("random number");   Graph1.setChannel(0, 1);   PhyphoxBleExperiment::Value Value1;         Value1.setLabel("Number 1");                               Value1.setUnit("");                        Value1.setChannel(1);     //Value 2   PhyphoxBleExperiment::Graph Graph2;      //Create graph which will plot random numbers over time   Graph2.setLabel("Value 2");   Graph2.setUnitX("s");   Graph2.setUnitY("");   Graph2.setLabelX("time");   Graph2.setLabelY("random number");   Graph2.setChannel(0, 2);     PhyphoxBleExperiment::Value Value2;         Value2.setLabel("Number 2");                               Value2.setUnit("");                        Value2.setChannel(2);    //Value 3   PhyphoxBleExperiment::Graph Graph3;      //Create graph which will plot random numbers over time   Graph3.setLabel("Value 3");   Graph3.setUnitX("s");   Graph3.setUnitY("");   Graph3.setLabelX("time");   Graph3.setLabelY("random number");   Graph3.setChannel(0, 3);       PhyphoxBleExperiment::Value Value3;         //Creates a value-box.   Value3.setLabel("Number 3");                  //Sets the label   Value3.setUnit("");                        //The physical unit associated with the displayed value.   Value3.setChannel(3);   //Value 4   PhyphoxBleExperiment::Graph Graph4;      //Create graph which will plot random numbers over time   Graph4.setLabel("Value 4");   Graph4.setUnitX("s");   Graph4.setUnitY("");   Graph4.setLabelX("time");   Graph4.setLabelY("random number");   Graph4.setChannel(0, 4);   PhyphoxBleExperiment::Value Value4;         //Creates a value-box.   Value4.setLabel("Number 4");                  //Sets the label   Value4.setUnit("");                        //The physical unit associated with the displayed value.   Value4.setChannel(4);   //Value 5   PhyphoxBleExperiment::Graph Graph5;      //Create graph which will plot random numbers over time   Graph5.setLabel("Value 5");   Graph5.setUnitX("s");   Graph5.setUnitY("");   Graph5.setLabelX("time");   Graph5.setLabelY("random number");   Graph5.setChannel(0, 5);       PhyphoxBleExperiment::Value Value5;         //Creates a value-box.   Value5.setLabel("Number 5");                  //Sets the label   Value5.setUnit("");                        //The physical unit associated with the displayed value.   Value5.setChannel(5);   //Value 6   PhyphoxBleExperiment::Graph Graph6;      //Create graph which will plot random numbers over time   Graph6.setLabel("Value 6");   Graph6.setUnitX("s");   Graph6.setUnitY("");   Graph6.setLabelX("time");   Graph6.setLabelY("random number");   Graph6.setChannel(0, 6);       PhyphoxBleExperiment::Value Value6;         //Creates a value-box.   Value6.setLabel("Number 6");                  //Sets the label   Value6.setUnit("");                        //The physical unit associated with the displayed value.   Value6.setChannel(6);   firstView.addElement(Graph1);            //attach graph to view   firstView.addElement(Value1);               //attach value to view     firstView.addElement(Graph2);            //attach graph to view   firstView.addElement(Value2);               //attach value to view   firstView.addElement(Graph3);            //attach graph to view    firstView.addElement(Value3);               //attach value to view   firstView.addElement(Graph4);            //attach graph to view   firstView.addElement(Value4);               //attach value to view     firstView.addElement(Graph5);            //attach graph to view   firstView.addElement(Value5);               //attach value to view   firstView.addElement(Graph6);            //attach graph to view    firstView.addElement(Value6);               //attach value to view   receiveSixFloats.addView(firstView);         //attach view to experiment   PhyphoxBLE::addExperiment(receiveSixFloats);      //attach experiment to server   vTaskDelete(NULL);   }