phyphox Forums - Experiment editor (new Blockly-based version)

Camera GUI not allowing full exposure controls

Wed, 11 Feb 2026 21:04:56 +0000

After editing the experiment Camera -> Brightness (Luminance) the camera-GUI in the app only shows the simple controls no matter what value is defined in the parameter "exposureAdjustmentLevel".
When using the original experiment in the same app the full controls are shown.

Example:

Code:

Also the parameter "showControls" seems to have no effect when used.

This is true both for an iPhone11 (app version 1.2.0) and for a phone with android 16 (app version 1.2.0).

What could be the problem with my code (which was generated by the new editor)?

Helligkeit (Leuchtdichte)_0.2Hz.phyphox (Size: 12.35 KB / Downloads: 41)

Error in PHYPhox Editor when generating '(In)elastic collision' experiment

Mon, 02 Feb 2026 22:36:30 +0000

I would like to report a possible issue in the phyphox webeditor.
When loading the experiment “(In)elastic collision” in the phyphox webeditor and then selecting “Generate”, the process appears to complete normally. However, when scanning the generated QR code with the phyphox app, the following error message is displayed:
“Line 498: Could not parse buffer with name”.
This behaviour seems to be reproducible and occurs consistently with this specific experiment. Could this be an issue related to the webeditor or to the experiment template itself?
Thank you very much for your support.

Best regards,
Albino Rafael

Encountered a problem about functions and buffers

Wed, 28 Jan 2026 13:41:16 +0000

I am testing the button functionality.ESP32 sends datas to Phyphox continuously, I hope to add a dot to the graph every time I press the button.However,in my phyphox experiment, if I press the button,dots drawn before will be cleared,what's wrong with my experiment?
I'll be thankful if anybody can help me.

Hooke's Law.phyphox (Size: 1.77 KB / Downloads: 54)

Editor does not load my experiment correctly

Sun, 13 Jul 2025 23:11:16 +0000

Hi,

I was working with the new Phyphox Editor before the release of the 1.2.0 version of Phyphox (late June), but the saved experiment now only partially loads (Main tab) while the other tabs appear empty.

I am working from a laptop using Edge as the browser.

The only difference I see in the Editor when it was working for me is that it did not have the option to upload icons or links, whereas the current version that does not work for me does.

I hope this report helps improve this excellent program (I am attaching my Phyphox Experimente).

Best regards.

Alberto

Cryoscopy 3TS_2.phyphox (Size: 7.11 KB / Downloads: 294)

Data collected by the sensor are transmitted to labview by bluethooth in phyphox

Tue, 08 Jul 2025 03:17:46 +0000

我想知道如何使用蓝牙模型从 phyphox 实时传输数据

Generate-Button not working

Thu, 26 Jun 2025 15:23:49 +0000

Hello,
I just tried to develop my first own experiment to make it more suitable for my class.
As I tried to finish the experiment by using the generate-button nothing happend. I first thought it might be caused by some compatability issues with safari on my mac, but i tried the same on my windows PC using chrome and had the same issue.

I'd be very thankful if someone could help me out somehow.

translate editor to be an app?

Mon, 17 Mar 2025 12:32:36 +0000

That should be an app (not be constrained to net to do design)!

(off topic) does phyphox do postprocessing (and permit some reprocessing on trial particulars?) or is it just realtime?

Using camera through the editor mode

Tue, 28 Jan 2025 22:17:04 +0000

hi dears,
Do you intend to allow access to hsv data collected by camera through editor mode?

I would like to include the operation of a mathematical function whose variable is hue.

Thanks!

My first experiences with the new editor for a larger project

Mon, 30 Dec 2024 11:32:02 +0000

Hello Phyphox team, in the last couple of days is started to migrate an older experiement (see attachment of this post) from the the old to the new editor.

I believe, I understand the obvious benefits of the new editor. The Analysis tab has become leaner (less crowded) by moving container assignments to individual other tabs. Also the permanent display of the containers is increasing programming efficiency a lot.

Suggested preparation for larger experiments in the old editor before switching to the new editor, because the old editor offers a 2d layout while the new editor requires 1d editing: I believe the new editor respects the horizontal position from the old editor, but it seems that the vertical position is not recognized. Therefore the recommendation would be to "stretch" old projects in the old editor ahead of their migration to the new editor (basically this is resolving the 2d layout into a more linear arrangement of the blocks in the old editor). This way related blocks would be grouped together in the new editor. For my project, which I did not stretch this way ahead of migration, I found that related blocks of my 2d project have been spreaded over a wide range in the new 1d editor. It took quite a while to sort these things out in the new editor to provide in the UI some coding coherence to the user for more easily understanding the coding. I believe, smaller projects and projects with the typical top-left to bottom-right diagonal layout should not suffer much this way when being imported to the new editor.

Grouping blocks in the old editor provided some kind of implicit documentation (proximity of the blocks = "they belong somehow together"). Right from the beginning of working with the new editor I wanted to compensate the missing freedom of the 2d layout of the blocks by adding comments. I really would apreciate some kind of comment block (could be a Logic block) which would do nothing else but displaying some comment in the new editor. No, I don't ask for line numbers, but comments really could help a lot to structure and explain the coding. Yep, I noticed the possibility to add comments to blocks which pop up by clicking on the question mark icon then, but it is an extra click and not directly inside the "coding".

The migration between the editors works pretty well, especailly when taking into account that there is an implicit and enforced upgrade of the file format. From other threads in the forum I understand that attributes are omitted in the XML file created by the new editor in case their value is identical to their default value. But this way a project depends on the fact that the defaults never would change, I would prefer to also keep the default values explicitly in the XML to document them and avoiding the need to look them up each time. In my project the deprecated Clear attribute is essential. I hope that the automatic conversion to the replacing Keep attribute has worked correctly, at least I have not found obvious problems in this regard, but I still need to check things in detail and get used to the Keep thinking.

I noticed that the Empty input block has not been added automatically in all cases to the operation/data/logic blocks with undefined inputs? I like that Empty block because it adds some consistency. I have added it manually in the new editor to not leave originally undefined inputs "uncommented". I admit that I did not care about this in the old editor, which also might be the reason why the Empty input block was missing in the new editor at some of my blocks. I hope that I did not change the logic of the experiment by adding the Empty inputs later on manually, still need to check this. But I found that for some blocks I violated their syntax when adding the Empty input block, which I only noticed in the mobile app after scanning the QR code: 'Line 516: Value-type not allowed for input "length".' has happend for the Const and the Threshold blocks, for example. Hmm, XML line numbers ... maybe I would like them as some kind of mouse-over in the new editor to be able to relate the error message from the app to the actual source code. Or maybe having the XML import check of the app already inside the new editor? This would save some roundtrips between the PC-based browser (design time) and the mobile device (runtime).

When switching tabs in the new editor always the vertical center of the new target tab is being displayed. For smaller projects this is not a big thing, but for larger projects (my XML has 1400+ lines) this always means to manually scroll back to the blocks you are currently working on. A lot of enforced scrolling, I can tell. Maybe the browser could remember the position inside the tabs and jump to the last known position when visiting a tab again? This would increase usability a lot.

While grabbing some UI element with the mouse I got another one nearby or even "under" the one I intended to grab. By missing the scroll bar I dragged a block or started creating a new container. There is some general tendency, I feel, in UI elements to become smaller with regard to monitor resolution. It might seem looking cooler, but actually it is getting in the way of efficiently use the UI. In the end it becomes necessary to apply some accessibility functions to not get disturbed by such side effects. Oops, accidentally I touched the Back button on my mouse and lost my experiment in the new editor. The old editor had some emergency popup to ask if leaving the editor is really the thing I want to do. I was lucky to have saved my last changes in the new editor to XML and have not actually lost anything by accidentally leaving the new editor. Speaking of such UI related observations, is it possible to combine blocks in contradiction to their syntax? While not precisely dragging blocks on my large monitor I docked some Subrange blocks inside each others which was not making any syntax sense to me (I have not tried to load such an experiment to the mobile app, maybe such sub-blocks not covered by the original block syntax just would be ignored).

I needed to accept that my browser (Firefox) was not jumping between the occurrences of search terms. It was only possible to highlight them all and scroll through the tabs manually to visit the occurrences (introducing the chance to miss one or the other occurrence). Would be nice to have some search function inside the new editor for container names, which also would help in preparing container renames and deletions.

There was one hard but hidden error when importing my old project to the new editor. I found the symptom of this error only at runtime and the root cause after some debugging in the new editor. The operator of the If block was not recognized at all by the new editor and instead of getting the operator I defined in the old editor I got in all cases the = operator in the new editor. For fixing the If blocks I needed to manually compare all If blocks between the two editors. Better to not switch off the old editor completely, please keep it.

Container rename: The rename command is a little hidding in the container selection popup (scroll down to the bottom, next to the delete command, easy to select the wrong command). After a rename the UI does not update unless the blocks are edited somehow. To avoid manual cleanup in the UI the workaround is to save the experiment after a rename and load that saved file again, then all the dependent blocks in the UI do read the new container name. There also was once a strange error when renaming a certain container which introduced two times the same container definition in the XML file which caused an automatic renaming of one of the identical containers at the next XML load (I needed to edit the XML file to get rid of the duplicate definition).

Container deletion: After removing all usages of a container in the tabs and its final deletion (context menu) from the container list the container remains in the list of the available containers (container selection popup). The deleted container vanishes when saving the XML files and loading the file again. On the other side, if I explicitly delete a container from within the container selection popup it actually vanishes from that popup list (there is not yet confirmation popup when deleting a container?), but its block remains in the permanent list of all containers in the original UI of the editor; I need to delete the block manually from there (just an observation: when opening the container selection popup from this abandoned container block, no container is preselected (checkmark), because that container already is deleted and no longer available). Ah, when deletion a container which is still used somewhere the new editor won't save. Probably there is some check of the experiment against the Phyphox XML schema, but I did not noticed any error message in the UI, took a while to find that last remaining container usage on the View tab. After deleting this last usage I could save again.

Small wish for inside the container selection popup: My project has about 190 containers which is a lot scrolling in that popup. I wonder if there could be some jump in the popup to containers starting with a character by just pressing the character on the keyboard.

Copying the name of a container is possible? Have not seen a simple copy'n'paste option (for deriving dependent container names, for example). To copy the container name I need to open the container selection popup and to start renaming the container. At the rename popup I can copy the container name and cancel the operation. A workaround. Ah, speaking of the renaming popup: the old container name also could appear in the input field as a kind of input help.

Unattached blocks ignored at runtime: blocks at the Analysis tab that happen to be not directly bound to the Analysis block do not through any error at the XML import to the mobile app. Just an observation. I assume such abandoned blocks are just being ignored at runtime.

I understand that the new editor offers an easier access to create (small) experiments. For larger experiments I still love the "data flow connection lines" of the Analysis tab of the old editor which give a nice idea of how the experiment might behave at runtime, in my opinion, this data flow aspect is a little hidden in the new editor (currently I believe I would not have had the idea explained in this posting in the new editor, the "lines" in the old editor have been essential for me). But the new editor supports in a better way debugging an experiments (I could more easily identify semantic container duplicates and improve the experiment). I see why you switch to the new editor and for most users this is the right approach.

New editor rooky errors on my side easily possible, cheers, Trikes.

the sampling rate

Sat, 07 Dec 2024 12:05:45 +0000

Why is the sampling rate set to 500 times per second in my programming, but exporting data through the phyphox mobile app does not exceed 100 points per second。And the time intervals of the exported data seem to be inconsistent. What's going on?Is there a limit to the number of points displayed per second for phyphox? Can I display 500 point data on the graph in one second?

1c48662295fc54d11bf8f9594e0e40c.jpg (Size: 444.42 KB / Downloads: 462)

Add attribute "keep" to BLE output

Mon, 02 Dec 2024 15:28:07 +0000

Hello,

according to the phyphox documentation one can set the "keep" attribute to input tags in BLE output.

Could this be added in he blockly editor? (see picture)

I just had a let's say undesired behaviour in my experiment but solved it thanks to the documentation. I think it would be less time-consuming if the attribute is visible in blockly because you instantly get an idea what you could change in the experiment file to get it working.

keep.png (Size: 20.19 KB / Downloads: 455)

Real time Translation Translation Display digit problem

Sun, 01 Dec 2024 01:16:22 +0000

I need smaller precision bits for conducting micro voltage experiments. How can I adjust the display bit count? Can it be adjusted on phyphox? My sensor can reach 7 decimal places, but the interface only displays 4 decimal places.

The problem of using ESP32 microcontroller to transmit data (probably due to programm

Thu, 28 Nov 2024 12:53:14 +0000

I want to use ESP32 to create a micro voltmeter for BLE transmission. The program on ESP32 looks normal from the monitor and has generated a micro voltage signal. However, there is a problem during the process of using BLE to transmit to phyphox, which always displays the wrong uuid. I have tried multiple times but still cannot transmit data to my phone. Here is my phyphox program, could you please help me take a look.

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Attribute "subscribeOnStart" not loaded

Wed, 20 Nov 2024 17:50:49 +0000

Hi,

when loading an experiment file to the Blockly editior some attributes seem to get lost. Im my case the "subscribeOnStart".

How to reproduce:

- Load attached file in the editor (note in line 15 it says subscribeOnStart="false")
- Click on generate (should produce identical output)
- The 2 files are different

default_experiment.phyphox (Size: 2.04 KB / Downloads: 377)

Cannot load experiment

Fri, 15 Nov 2024 17:34:48 +0000

I've generated an experiment via phyphox-editor. Works perfectly fine on my mobile phone (Android 13/Bluetooth 5.0). When trying to load that same experiment on an much older tablet (Android 5.01/Bluetooth 4.0) the loading stops with error message "XML-error in line 1. Expected a quoted string (Position: DOCDECL @ 1:50 in java.io.buffered reader @168F3801)." What's wrong here?