https://community.wolfram.com RSS Feed for Wolfram Community showing any discussions tagged with Connected Devices with no replies sorted by active. https://community.wolfram.com/groups/-/m/t/3474215 Hi, I'm on Wolfram Home Edition 14.2.1 on macOS and I try to get OpenAIGym working as per the help page. The gym python package has been installed, but when I try to execute env = DeviceOpen["OpenAIGym", "Atlantis-v0"] an error message in the Messages window appears saying that Python package cv2 is not installed. I have installed it as well using ResourceFunction["PythonPackageInstall"]["opencv-python"] Has anyone else gotten this device running on macOS. It seems also like the gym package is deprecated and further development happens in the package gymnasium. Thomas Gustafsson 2025-06-04T13:38:17Z https://community.wolfram.com/groups/-/m/t/3460710 &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/65e4af27-f068-4a98-bee5-c75d8ccdbce7 Dimitar Krastev 2025-05-14T13:35:17Z https://community.wolfram.com/groups/-/m/t/3445017 ![enter image description here][2] **April 23rd, 2025**: Wolfram U is hosting a webinar on Wolfram System Modeler's OPC UA Library! Discover how you can connect your digital models with industrial devices such as PLCs, sensors, actuators and more. In this webinar, we will present the latest release of the OPC UA library, a System Modeler Library designed for real-time communication with OPC UA–enabled devices and systems. This library facilitates workflows such as testing control code through hardware-in-the-loop simulations, collecting and analyzing live data, deploying high-level control algorithms and creating custom control panels. By connecting models with physical systems in real time, it unlocks exciting possibilities in industrial automation, control development and data analysis. >[**REGISTER HERE**][3] ![enter image description here][4] [2]: https://community.wolfram.com//c/portal/getImageAttachment?filename=OPC-Event-WU.png&userId=1522613 [3]: https://www.bigmarker.com/wolfram-u/opc-ua-library?utm_bmcr_source=wsm-events-page [4]: https://community.wolfram.com//c/portal/getImageAttachment?filename=WolframU.png&userId=1522613 Ankit Naik 2025-04-16T14:24:24Z https://community.wolfram.com/groups/-/m/t/3365621 To run the Mathematica runtime directly on the PYNQ board, you’ll have to cross-compile Wolfram libraries for ARM. Wolfram Mathematica does not natively provide ARM-compatible libraries (libWolframRTL.so) for ARM platforms such as the PYNQ board. The libraries provided by Wolfram are typically built for x86-64 Linux systems, which causes the architecture mismatch when you try to use the ARM cross-compiler (arm-linux-gnueabihf-gcc). In this, ARM-compatible libraries from Wolfram are required. Or please provide a custom solution or suggest alternatives. Vijaya Babu Panthagani 2025-01-28T13:59:01Z https://community.wolfram.com/groups/-/m/t/3311950 Hello, I successfully use streaming from $DefaultAudioInputDevice. audio0 = AudioStream[$DefaultAudioInputDevice, SampleRate -> 7119, SoundVolume -> 1]; AudioRecord[audio0]; Pause[180] AudioStop[audio0]; In future I want to stream audio from Google Chrome Tab. Please, what device do I need to use? Regards - Leo Leo Baumann 2024-10-30T18:03:29Z https://community.wolfram.com/groups/-/m/t/3294878 Hello, I am playing with Micro:bit and Mathematica. I wanted to simply visualize current temperature (measuring constantly) in Mathematica with temperature sensor on Micro:bit. I have programmed Micro:bit and wrote a code in Mathematica using Dynamic and ThermometherGauge function to do the visualization. It works, but I noticed that data showing in MakeCode is different (and more accurate) than the data showing in Mathematica. And I can be sure that the temperature showing in Mathematica is wrong because 32ºC is not possible currently and it never changes. And the gauge is constantly showing 10 then 50 and then 32ºC. I do not know why is that. Code for Micro:bit in JavaScript: let temp = 0 basic.forever(function () { }) basic.forever(function () { // Get the temperature in Celsius temp = input.temperature() // Write temperature to serial as a number serial.writeNumber(temp) // Write a newline to ensure proper reading serial.writeLine("") // Wait for 2 seconds before sending next value basic.pause(2000) }) Mathematica: Dynamic[temp = DeviceRead[microbit] ] Dynamic[ThermometerGauge[temp, {0, 50}, ScaleOrigin -> 0, GaugeLabels -> "Temperature (°C)"]] Thanks in advance! Ivo P. 2024-10-09T15:00:48Z https://community.wolfram.com/groups/-/m/t/3105676 My USB microphone shows up in the PulseAudio volume control and also works well with Audacity, arecord etc. However, Mathematica can't see the mic -- $AudioInputDevices gives me a null list. How can I set up the mic to work as an audio input device in Mathematica? (Raspberry Pi OS Bookworm ) Thanks, Praveen Praveen Bharadhwaj 2024-01-19T04:18:27Z https://community.wolfram.com/groups/-/m/t/3025705 Using the following code to connect to the Arduino board, the following window will be shown, which requires the installation of the Arduino software. arduino = DeviceOpen["Arduino", "COM3"]; ![enter image description here][1] But because I have already installed the Arduino IDE software, I want to define its installation Path with the Device property "ArduinoInstallLocation" so I use the following code: arduino = DeviceOpen["Arduino", {"COM3","ArduinoInstallLocation" -> "C:\\Program Files\\Arduino IDE"}]; But it doesn't work for me. ![enter image description here][2] Please Help! I need to specify the installation path of Arduino Software. [1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=1.png&userId=3025416 [2]: https://community.wolfram.com//c/portal/getImageAttachment?filename=2.png&userId=3025416 Harry Hunt 2023-10-02T16:41:50Z https://community.wolfram.com/groups/-/m/t/2602822 Hi, a error message appears when opening a serial connection with an arduino uno. arduinoCCD = DeviceOpen["Arduino", "COM9"] The error message is then : ArduinoUpload`arduinoIndividualUpload::sizeFail: Checking the size of the sketch with avr-size failed with code 1 and output C:\Users\Eble\AppData\Roaming\Mathematica\ApplicationData\Arduino\arduino\hardware\tools\avr\bin\avr-size.exe: '"C:\Users\Eble\AppData\Local\Temp\arduinocompiled9ec104f74a246938788595e6ec6ae01\SketchTemplate.cpp.hex"': No such file and DeviceConfigure::uploadfail: Uploading of the sketch failed. Halting DeviceExecute[] and DeviceConfigure[] can not be used. Does anyone have an idea? Thank you. Benoit Eble 2022-08-22T13:31:16Z https://community.wolfram.com/groups/-/m/t/2466962 I want to be able to enter everything seamlessly using the iPad Pro using the pencil, especially things like vectors and matrices. Eric Goff 2022-02-08T20:29:34Z https://community.wolfram.com/groups/-/m/t/2209374 *NOTE: Packages files are available through this [GitHub link][1]* &[Wolfram Notebook][2] [1]: https://github.com/nicolomonti/Bluetooth [2]: https://www.wolframcloud.com/obj/c1a12f30-485c-4f2f-9396-13dc02d6b75f Nicolò Monti 2021-03-04T10:32:33Z https://community.wolfram.com/groups/-/m/t/2160081 Hi Maker Mathematica community, I am currently trying to move a work project from Arduino to Wolfram Mathematica for eventual live plotting. I am new to Wolfram Mathematica and connected devices, but I'm very familiar with Arduino. I want to read the same analog values that I read from my Arduino serial port, however when I ask Mathematica to read them, it gives me the voltage values. I'm hesitant to try and convert these voltage values as I already have an equation for converting ultrasonic sensor data over to change in distance of centimeters pertaining to a spring mass system. I know the circuit is working correctly, but the values that Mathematica reads are very different from the Arduino values. &[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/08015799-0c30-4d99-83c8-76cf88d5f7f1 Here's my arduino code: (I tried to post it in an ".ino " file but the file type wasn't supported) Jennifer Rittenhouse 2021-01-12T03:39:40Z https://community.wolfram.com/groups/-/m/t/2130901 I've been intending to interface Mathematica with the Raspberry Pi Camera, but it appears device handling in 12.1 is broken. I burnt a brand new install of 32 bit Buster with the output of uname -a as below Linux dragon 5.4.79-v7+ #1373 SMP Mon Nov 23 13:22:33 GMT 2020 armv7l GNU/Linux The first time I ran Mathematica all was fine FindDevices[] listed the devices including the camera, after it downloaded an amount data from the Wolfram server. However, the next time I ran Mathematica and evaluated FindDevices[] I received an error "malloc(): invalid size (unsorted)" followed by a beep with an accompanying message that the kernel had aborted. Evaluating DeviceRead["RaspiCam"] resulted in the following error on the terminal /opt/Wolfram/WolframEngine/12.1/SystemFiles/Kernel/Binaries/Linux-ARM/WolframKernel: symbol lookup error: /opt/Wolfram/WolframEngine/12.1/SystemFiles/Components/RaspberryPiTools/LibraryResources/Linux-ARM/libRaspberryPiTools.so: undefined symbol: vc_vchi_dispmanx_init Evaluating the same on 12.0 results in the expected behaviour. Anyone know what might be going on? Nicholas Walton 2020-12-06T20:49:23Z https://community.wolfram.com/groups/-/m/t/2120844 I have a Raspberry Zero. GPIO works ok with Python. I am trying to do a simple LED on/off with Wolfram/Mathematica, but so far it is not working. I tried: In[n]= DeviceWrite["GPIO", 11 -> 1] to turn on a LED connected to pin 11, but nothing happens. I only get a response Out[n]= 11 -> 1 I checked previously the GPIO with DeviceOpen["GPIO"] and it responds with: Status: Connected. I am new with Wolfram. Thank you for any help. Tirso Mayor 2020-11-22T11:25:57Z https://community.wolfram.com/groups/-/m/t/2114280 First, thanks for read. I'm a math teacher in highschool. If you connect Arduino Uno to Mathematica and press the switch, the value read by DeviceRead is changed to '0' or '1'. When the switch is pressed using the EmitSound, Sound, and SoundNote functions, the sound corresponding to '1' is output. And in the end, I want to make an 88-key piano. However, an error code appears stating that the value of '0' or '1' output by v=Dynamic[DeviceRead["Arduino",11]] is not applicable in EmitSound[Sound[SoundNote[v]]]. What am I missing? If there is a difference in time that occurs from the moment the switch is pressed and connected to the EmitSound function of Mathematica through the Arduino, how can we overcome it? Thanks, again. wkdrpqkfk Jang 2020-11-13T06:10:26Z https://community.wolfram.com/groups/-/m/t/2094083 Hello, I'm thinking about a hobby project on the Raspberry Pi to help me learn Wolfram Language. The plan is to use one of the touch-sensitive TFT screens for the Pi, triggering and displaying some audio signal processing written in WL. Is there something I've missed in WL that would help me build the UI? My current thought is to use [kivy][1] and Python (my current default language) for the UI, calling WL code with the Python client, but I'd be interested in other ideas. Thanks and best regards, Daryl. [1]: https://kivy.org/#home Daryl Wilding-McBride 2020-10-14T06:44:05Z https://community.wolfram.com/groups/-/m/t/2090365 Hi guys, I was trying to reproduce what Bernat does here (https://community.wolfram.com/groups/-/m/t/456947) but an error is showing: Get::noopen: Cannot open /home/pi/.Mathematica/Paclets/Repository/Interpreter-1.3.140.0/Kernel/32Bit/Interpreter.mx Does anyone knows how to solve it? - I am using a Raspbery pi 3B+ with Wolfram Mathematica 12.1 on Raspbian. I also saw a post on stack exchange about the same error: https://mathematica.stackexchange.com/questions/231331/a-function-failes-and-a-message-appears-only-on-raspbery-pi-os?noredirect=1 Thanks. Estevao Teixeira 2020-10-07T16:27:09Z https://community.wolfram.com/groups/-/m/t/2060199 Hello! I have really been enjoying the ```"MicrocontrollerKit`"``` and the ability to simply generate and deploy code for arbitrary discrete state space models. I have seen a few videos from Mr. Suba Thomas who seems to be working hard on this functionality. I believe he has mentioned the ongoing effort to add support for new devices a couple times. I was wondering what the status is for support of additional targets. Personally, I would love to see at least the Teensy4.0 supported (with its 600 MHz Cortex-M7). This would allow me to quickly build and test some really high-speed control systems using the beautiful, high-level MicrocontrollerKit. Next, I would love to see support for some STMicroelectroncis boards. One of the most common families of chips I have seen and used in projects in the past couple of years has been the [STM32 lineup](https://www.st.com/en/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus.html). Does anyone out there know what boards are planning on being added to the MicrocontrollerKit, or what the timeline for that looks like? Also, what microcontrollers are you excited to see added? *Edit: I just saw [this](https://community.wolfram.com/groups/-/m/t/1676375?p_p_auth=rAxtSq7h) from a year ago, but I am still curious on the progress made!* Alec Graves 2020-08-18T04:24:39Z https://community.wolfram.com/groups/-/m/t/2060187 Hello, I am trying to learn ```"MicrocontrollerKit`"```, and I came across a strange issue with some example code. It appears that when using a specific target, "ArduinoMicro", compilation always fails with an error, regardless of what model I am trying to compile (state space, transfer function, etc.). I am using Wolfram Desktop version 12.1.0 on Windows 10. The following is an example notebook that I have uploaded demonstrating compilation of a simple model failing for "ArduinoMicro" and succeeding for "ArduinoUno": &[Wolfram Notebook][1] When I hover my mouse over the second circle (which is red - I guess indicating a compilation error) I see the following message: ``` avr-gcc.exe: fatal error: no input files compilation terminated. ``` I am able to view the generated code for the Arduino Micro, but nothing beyond that. I hope this can help diagnose the problem. If anyone out there has suggestions or has experienced a similar problem, feel free to leave a comment. Thanks! [1]: https://www.wolframcloud.com/obj/2353a9ad-090d-49ee-aa4e-5ab8f4cadf09 Alec Graves 2020-08-18T03:52:03Z https://community.wolfram.com/groups/-/m/t/1965880 Hello everyone, first post here, new to Mathematica. Thanks for your help in advance. I will include as much detail as I can in order to make it easiest to help solve my problem. Right now I am designing an automated process control system using Mathematica. Firstly, I need to read data from a probe meter [shown here][1] connected via USB. I don't have any problem using `DeviceOpen` to access the device, but *reading* anything from it has been an issue. When I try to read from the device using `DeviceReadBuffer`, I'm not even able to return any contents from the device. That seems to be the root of the problem in regards to why I'm not able to read any sensor data. My question to the community is: what could be the problem here? - Is USB the wrong connection type to be reading this data using Mathematica? - The device also offers analog output through its X1 & X2 extension port connectors (see image below). So far unfamiliar with these connection types, but do you think I'll need to read the data from this output instead? This may involve some extra accessories such as an ADC or UART, so I need to just ensure that I'd be able to convert into a connection type that my modern PC laptop can support (preferably USB so that I can just refer to my COM port for the easiest programming right?) I have been working off of instructions from [this tutorial][2]. I have reached out to the manufacturer as well to get their insight, but figured I may get some useful nuggets from you guys on here as well. I have also attached my notebook up to the point when I am experiencing problems, though there's not much in it. Thanks in advance! P.S. Here is some extra information that may be useful. To make things more interesting, when I am running their included data logging software, I am not even able to use `DeviceOpen` to access the device. It's as if the software is blocking my access to it. Makes me wonder if a custom developed driver is needed to make this connection and read this data. I'd ideally be able to read data from this device while the data logging software is running... ![X1 & X2 extension port connectors][3] [1]: https://www.pyroscience.com/en/products/all-meters/fspro-4 [2]: https://www.wolfram.com/wolfram-u/catalog/wl025/ [3]: https://community.wolfram.com//c/portal/getImageAttachment?filename=FS-Proports.png&userId=1964339 Darren Anthony 2020-05-06T06:31:45Z