phyphox Forums - Bugs and Problems

Problem with ESP32 C3 super mini

Tue, 14 Oct 2025 06:52:04 +0000

Hello everyone, I am using ESP32 C3 super mini to do experiment with phyphox. When I run code on Aduino IDE, I meet following error, please help me (I using phyphoxble 1.2.5)

/Users/vunguyen/Documents/Arduino/libraries/phyphox_BLE/src/phyphoxBLE_ESP32.cpp:107:40: error: 'esp_ble_gatts_cb_param_t' has not been declared
107 | void onConnect(BLEServer* pServer, esp_ble_gatts_cb_param_t *param) {
| ^~~~~~~~~~~~~~~~~~~~~~~~
/Users/vunguyen/Documents/Arduino/libraries/phyphox_BLE/src/phyphoxBLE_ESP32.cpp: In member function 'void MyServerCallbacks::onConnect(BLEServer*, int*)':
/Users/vunguyen/Documents/Arduino/libraries/phyphox_BLE/src/phyphoxBLE_ESP32.cpp:108:40: error: request for member 'connect' in '* param', which is of non-class type 'int'
108 | pServer->updateConnParams(param->connect.remote_bda,PhyphoxBLE::minConInterval,PhyphoxBLE::maxConInterval,PhyphoxBLE:laveLatency,PhyphoxBLE::timeout);
| ^~~~~~~
exit status 1

zero timestamps in exported data

Fri, 25 Jul 2025 14:45:13 +0000

Hi,
I did some recording with accelerometer then exported the data, but the first some 1k lines have 'Time (s)' col all zero, though the sensor is yielding data. Tried a few times with same results.
Burst length in pict is some 700ms.
The START system-time in metadata seems consistent with the 1st record rather than with the 1st non-zero-time line, checking with external reference clock (generator sync'd with the phone).

app version is 1.1.16 on Android6.1

any clues?

thanx

Img 2025-07-25 162156.png (Size: 60.74 KB / Downloads: 275)

send mqtt command versus device

Fri, 06 Jun 2025 07:49:35 +0000

Hi, i configured an experiment with this network parameter

accX
accY
accZ

Is it possible via mqtt topic to send "start" and "stop" command to the device, like get command

http://DEVICEIP:8080/control?cmd=start

http://DEVICEIP:8080/control?cmd=stop

I need to send data via receiveTopic?

My device is an Iphone

Is it possible to have an examples?

Thanks

Send device sensor data to external http server

Tue, 03 Jun 2025 12:14:34 +0000

Hi, I'm just getting started with your phyphox App.

I have a question:

i created a test experiment and i inserted the following "lines" in phyphox configuration file to receive data from the device spontaneously to an external web server:

accX
accY
accZ
acc

It works perfectly. I receive data on my exposed web site.

My problem is that if I replace address="https://www.testdemo.com/" with an internal network address I get a connection error from the "phyphox" application.

Example address="http//10.1.1.100/" (the mobile is in the same network and has ip 10.1.1.202)

Is there any limitation to the use of internal network addresses on the phyphox application side?

I use an iPhone 13 on which I installed phyphox.

Thank you.

problem with esp32-c3-mini-1

Tue, 08 Apr 2025 09:39:56 +0000

i tried to upload the basic example "Create Experiment.ino" inot ESP32-C3-MINI-1

when i try to connect to the device i receive this error message:
Bluetooth experiment error
The transmitted experiment data is
corrupted ( could not write descriptor)

with other version of ESP32 ( e.g. S3) everithing works fine.

any idea ?

How to use movingaverage

Mon, 31 Mar 2025 15:31:54 +0000

Hi,

I am trying to use the movingaverage function and am constantly failing.
I have no clue how that function should work.
Can someone please post a simple example?
My not working code looks like this:

Code:



  New Experiment

  No Category

  

    x

    xAvg

  

  

    

      x

    

  

  

    

      x

      10

      xAvg

    

  

  

    

      

        xAvg

Wrong Unit in "Zentripetalbeschleunigung"

Mon, 03 Mar 2025 11:49:45 +0000

Hi there,

thanks for your great app. I have just a small bug to report. Isn't there a wrong unit in "Zentripetalbeschleunigung" -> "Quadratische Auftragung"? I think it should be "(rad/s)^2" instead of "(rad/s^2)".

Greetings

Beeblebrox-ZZ9

Problem getting to save and get send messages to my web server

Fri, 07 Feb 2025 23:11:13 +0000

I am trying to setup the GPS app to send info to my local python flask web service / sensor-data endpoint.

I've editted the .phyphox file to include this entry, then loaded into a new experiment and used QR to create my new experiment. However I do not see the network block in the generated XML nor do I see any updates to <>/config output. Can you see anything wrong?
...

lat
lon
z

...

Kens 250207 GPS.phyphox (Size: 10.97 KB / Downloads: 375)

IOS build instructions

Sun, 02 Feb 2025 17:30:45 +0000

Hey - tried to build the IOS version of the app yesterday on Xcode 16.2/Mac OS 15.2. The JXLS and ZipZap libraries seem to be missing, and or out of date when I down loaded them and tried to compile them separately.

Are there build instructions?

Missing JXLS and ZipZap frameworks, in Xcode

Sun, 02 Feb 2025 05:28:25 +0000

Trying to build PhyPhox app from source code for iPhone to customize it. Missing JXLS and ZipZap frameworks, in Xcode

Hints?

Values of the acceleration

Fri, 31 Jan 2025 10:32:32 +0000

Hello,
I'm currently working on a lesson for my computer science class with my students to explore all the sensors available in a phone.
I'm trying to understand how the acceleration values from my graph.
My experiment is to drop my phone from 1.5m up and to check the values of the acceleration.
In attachment you cans see I'm having two high positive values that are matching the two falls from different heights (second one is higher).

My question is why is my phoning detecting a positive acceleration of >60m/s² as the phone shouldn't really accelerate more than the gravity (9.81m/s²).
From what I concluded, the high value corresponds to when my phone hits the ground (blanket), but why does the phone captures an acceleration.

Sorry if this is more of a general science question than about the phone, but I'm having trouble understanding the results here.
Thank you for your help!

IMG_1200.PNG (Size: 185.92 KB / Downloads: 643)

Arduino Nano - Phyphox

Tue, 22 Oct 2024 06:57:55 +0000

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
#include
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);

}
}

Old Editor: "Could not finalize zip file. This is a server error."

Tue, 10 Sep 2024 20:03:47 +0000

Hi there, I just wanted to create again an online QR code for an older experiment for which I did this sucessfully some months ago, but now I get the error message "Could not finalize zip file. This is a server error." Locally creating the zip file works. I tested with some other XML files as well, but each time the same error. Is creating QR codes with the old editor still possible now that the new one is there? Or maybe it is just a correct error message. Thanks and kind regards, Trikes.

Bug Feedback

Thu, 29 Aug 2024 10:38:15 +0000

非常期待 1.2 版的相机模块和蓝牙模块编辑器很快被添加到新版本的编辑器中。另外，还有一个错误，我的手机 HUAWEI Mate60 Pro 在使用 ToF 镜头时，默认设置为后镜头，没有实验数据，但是，当我切换到前镜头时，软件卡住了，直到我强制退出！

Conn

Wed, 17 Apr 2024 14:28:38 +0000

Hello,
I want to connect my samsung s22 phone with phyphox. To use this application

PHP Code:
https://hebergement.universite-paris-saclay.fr/supraconductivite/projet/arduino_nano/ 

With a Arduino Nano 33 BLE Sense REV2. This card is located by my computer under windows 11 pro.
But impossible to find this arduino with the Bluetooth of my phone. And therefore impossible to see it under phyphox.
Do you have any solutions for me? Thank you.