# Processing for Pi

**URL:** https://discourse.processing.org/c/processing-pi/11.md?page=4

[Latest](https://discourse.processing.org/latest.md) · [Categories](https://discourse.processing.org/categories.md) · [Tags](https://discourse.processing.org/tags.md)

**Page:** 5

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## [Minim problem with loading multiple FilePlayer](https://discourse.processing.org/t/minim-problem-with-loading-multiple-fileplayer/17688)

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**Author:** [@mokauno](https://discourse.processing.org/u/mokauno)\
**Replies:** 5\
**Last updated:** [February 15, 2020, 9:26am UTC](https://discourse.processing.org/t/minim-problem-with-loading-multiple-fileplayer/17688 "2020-02-15T09:26:36Z")

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Hi, I would like to use my raspberry pi 3 and processing to mix sound files. My problem is that minim crashes after loading 6 FilePlayer. I tried it on different setups : raspbian + processing pi, raspbian image provi…

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## [Server on Raspberry not working](https://discourse.processing.org/t/server-on-raspberry-not-working/17547)

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**Author:** [@agp](https://discourse.processing.org/u/agp)\
**Replies:** 2\
**Last updated:** [February 5, 2020, 9:58am UTC](https://discourse.processing.org/t/server-on-raspberry-not-working/17547 "2020-02-05T09:58:25Z")

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I have written a program on my laptop where I am creating a server and connecting some ESP32 as clients. Server sees when a new client is available and I have communication between them. Now, I am trying to run the same …

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## [Processing 3 running slow on Pi4](https://discourse.processing.org/t/processing-3-running-slow-on-pi4/16362)

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**Author:** [@klitsner](https://discourse.processing.org/u/klitsner)\
**Replies:** 22\
**Last updated:** [January 31, 2020, 10:01am UTC](https://discourse.processing.org/t/processing-3-running-slow-on-pi4/16362 "2020-01-31T10:01:29Z")

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I recently got a 4GB Ram Pi4 to build a sampler pad to use for performances. After a fresh install of Raspian Buster (using NOOBS) I downloaded the latest Processing (ARM) to the pi, however I immediately began experienc…

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## [Does Export application work on the Raspberry PI](https://discourse.processing.org/t/does-export-application-work-on-the-raspberry-pi/16518)

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**Author:** [@michaelkpierce](https://discourse.processing.org/u/michaelkpierce)\
**Replies:** 13\
**Last updated:** [January 29, 2020, 3:39pm UTC](https://discourse.processing.org/t/does-export-application-work-on-the-raspberry-pi/16518 "2020-01-29T15:39:16Z")

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I want to be able to make an application that will work without installing Processing on the PI. I’ve tested this on a Windows installation and can make an application that will run on a windows machine without loading …

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## [Minim audio recording fails after 6 files are recorded](https://discourse.processing.org/t/minim-audio-recording-fails-after-6-files-are-recorded/17360)

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**Author:** [@bluemoon](https://discourse.processing.org/u/bluemoon)\
**Replies:** 2\
**Last updated:** [January 28, 2020, 1:07am UTC](https://discourse.processing.org/t/minim-audio-recording-fails-after-6-files-are-recorded/17360 "2020-01-28T01:07:50Z")

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Hi folks, With a one line mod to the Minim RecordAudioInput library example to allow for recording multiple audio files, an error is thrown: ==== JavaSound Minim Error ==== ==== Couldn't open the line: line with format…

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## [Playing sound with Minim on Pi breaks](https://discourse.processing.org/t/playing-sound-with-minim-on-pi-breaks/17354)

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**Author:** [@bluemoon](https://discourse.processing.org/u/bluemoon)\
**Replies:** 1\
**Last updated:** [January 28, 2020, 1:06am UTC](https://discourse.processing.org/t/playing-sound-with-minim-on-pi-breaks/17354 "2020-01-28T01:06:44Z")

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Hi Folks, I’ve got a bit of a mystery for you. I’ve got some code that cycles through a folder of audio files and plays them with minim. I’m using the following that gets called in draw to check when one file is done …

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## [RPi4 python or C plug in](https://discourse.processing.org/t/rpi4-python-or-c-plug-in/17131)

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**Author:** [@jbirdlebough](https://discourse.processing.org/u/jbirdlebough)\
**Replies:** 3\
**Last updated:** [January 17, 2020, 9:46am UTC](https://discourse.processing.org/t/rpi4-python-or-c-plug-in/17131 "2020-01-17T09:46:10Z")

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Just setup tonight. added modes i could find, have lot of C/C++ and python code was looking to find mode so we can reuse our existing code bodies. I am working with RPI4 USB to Arduino/DUE building a LDMOS amp control…

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## [Processing window not showing in screenshot](https://discourse.processing.org/t/processing-window-not-showing-in-screenshot/2009)

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**Author:** [@ben\_suddenly](https://discourse.processing.org/u/ben_suddenly)\
**Replies:** 5\
**Last updated:** [January 15, 2020, 2:40pm UTC](https://discourse.processing.org/t/processing-window-not-showing-in-screenshot/2009 "2020-01-15T14:40:45Z")

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after i finally got everything running reasonably well i’ve noticed that when i take a screenshot of the full desktop the processing sketch window is black button.py is running scrot (in terminal) on button press, whi…

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## [How to play same GL video on two windows](https://discourse.processing.org/t/how-to-play-same-gl-video-on-two-windows/2623)

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**Author:** [@AlexandreRangel](https://discourse.processing.org/u/AlexandreRangel)\
**Replies:** 10\
**Last updated:** [January 15, 2020, 12:30pm UTC](https://discourse.processing.org/t/how-to-play-same-gl-video-on-two-windows/2623 "2020-01-15T12:30:19Z")

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Hello P5 friends, how can I play the same GLMovie instance on two windows? Here’s my code, with the error line marked: import gohai.glvideo.\*; ControlFrame cf; GLMovie myMovie; void settings() { size(400, 400, P3D)…

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## [H246 Video encoding](https://discourse.processing.org/t/h246-video-encoding/8638)

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**Author:** [@f42ter](https://discourse.processing.org/u/f42ter)\
**Replies:** 4\
**Last updated:** [January 1, 2020, 12:46pm UTC](https://discourse.processing.org/t/h246-video-encoding/8638 "2020-01-01T12:46:54Z")

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Looking for a simple way to decode h246 encoded videos? The video is sent via udp from a dji Tello? For sure I mean h264. Just a typo ;-\>

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## [Video library problem with RP4](https://discourse.processing.org/t/video-library-problem-with-rp4/16372)

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**Author:** [@jdarias](https://discourse.processing.org/u/jdarias)\
**Replies:** 3\
**Last updated:** [December 14, 2019, 3:19am UTC](https://discourse.processing.org/t/video-library-problem-with-rp4/16372 "2019-12-14T03:19:02Z")

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Installed processing on my Raspberrry Pi 4 following the instructions to Install Processing onto existing installation Downloaded the processing video library, ran the sketch i´m working on, and it doesn´t work (same co…

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## [Receive DMX input to control sketch on raspberry PI](https://discourse.processing.org/t/receive-dmx-input-to-control-sketch-on-raspberry-pi/15989)

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**Author:** [@xpluscal](https://discourse.processing.org/u/xpluscal)\
**Replies:** 1\
**Last updated:** [December 13, 2019, 12:24am UTC](https://discourse.processing.org/t/receive-dmx-input-to-control-sketch-on-raspberry-pi/15989 "2019-12-13T00:24:41Z")

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Hi, I’m trying to do the following: I have a light installation of about 500 LEDs (with a Fadecandy controller) that are being controlled by a processing sketch running on a raspberry pi zero w. In order to make this …

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## [Getting error message on Raspberry Pi V2 Camera Colour Detection code](https://discourse.processing.org/t/getting-error-message-on-raspberry-pi-v2-camera-colour-detection-code/16064)

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**Author:** [@Treedom](https://discourse.processing.org/u/Treedom)\
**Replies:** 1\
**Last updated:** [December 3, 2019, 4:02am UTC](https://discourse.processing.org/t/getting-error-message-on-raspberry-pi-v2-camera-colour-detection-code/16064 "2019-12-03T04:02:57Z")

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Hi, I’m using a Raspberry pi with a V2 camera and am running this code and getting the error message “ArrayIndexOutOfBoundsException: 64001”. I have ran this code on a mac computer and I do not get this error. It seems t…

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## [Raspberry Pi - Sound not playing from Processing](https://discourse.processing.org/t/raspberry-pi-sound-not-playing-from-processing/8286)

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**Author:** [@rhythmrascal](https://discourse.processing.org/u/rhythmrascal)\
**Replies:** 3\
**Last updated:** [November 30, 2019, 1:37am UTC](https://discourse.processing.org/t/raspberry-pi-sound-not-playing-from-processing/8286 "2019-11-30T01:37:16Z")

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When I attempt to play sound via Processing, I get a fast pace pulsing click that starts after a couple of seconds. With no other sound coming from the speaker. The sound is via the HDMI connection. If I plug in headphon…

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## [Cannot run sketch without a display](https://discourse.processing.org/t/cannot-run-sketch-without-a-display/15723)

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**Author:** [@clankill3r](https://discourse.processing.org/u/clankill3r)\
**Replies:** 0\
**Last updated:** [November 22, 2019, 3:44pm UTC](https://discourse.processing.org/t/cannot-run-sketch-without-a-display/15723 "2019-11-22T15:44:31Z")

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I’m using a jetson nano which is pretty comparable to a raspberry PI. At the moment when I run processing I get a: Cannot run sketch without a display. Read this for possible solutions: Running without a Display · pr…

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## [Stream GLvideo camera failed rpi 3 A+](https://discourse.processing.org/t/stream-glvideo-camera-failed-rpi-3-a/15512)

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**Author:** [@fuzzy\_wobble](https://discourse.processing.org/u/fuzzy_wobble)\
**Replies:** 7\
**Last updated:** [November 16, 2019, 2:59pm UTC](https://discourse.processing.org/t/stream-glvideo-camera-failed-rpi-3-a/15512 "2019-11-16T14:59:18Z")

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Hello, having some difficulties with Processing on rpi : ( Firstly, tried downloading the Raspberry Pi Image and it would not even boot so had to add Processing manually. Got Processing running, but when I try to stre…

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## [NFC RC522 or PN532 with Pi?](https://discourse.processing.org/t/nfc-rc522-or-pn532-with-pi/15248)

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**Author:** [@bluemoon](https://discourse.processing.org/u/bluemoon)\
**Replies:** 1\
**Last updated:** [November 9, 2019, 9:57pm UTC](https://discourse.processing.org/t/nfc-rc522-or-pn532-with-pi/15248 "2019-11-09T21:57:38Z")

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Hi Folks, Has anyone used one of the NFC readers (RC522 or PN532) with Processing for Pi? They both have SPI interfaces, which should work with the Pi, but without a library I’m in over my head looking at the low level…

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## [Raspberry pi camera settings?](https://discourse.processing.org/t/raspberry-pi-camera-settings/15072)

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**Author:** [@Highflower](https://discourse.processing.org/u/Highflower)\
**Replies:** 2\
**Last updated:** [October 31, 2019, 12:58pm UTC](https://discourse.processing.org/t/raspberry-pi-camera-settings/15072 "2019-10-31T12:58:29Z")

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Hello, I’m working on a project where I’m using a raspberry pi camera with processing to measure light passing through a material to measure its thickness and evenness. I’m using the GLlibrary and trying to follow the e…

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## [Raspberry pi camera](https://discourse.processing.org/t/raspberry-pi-camera/14929)

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**Author:** [@Whahahahaha](https://discourse.processing.org/u/Whahahahaha)\
**Replies:** 6\
**Last updated:** [October 25, 2019, 3:55pm UTC](https://discourse.processing.org/t/raspberry-pi-camera/14929 "2019-10-25T15:55:14Z")

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hi, I have a raspberry pi 3B+, with processing installed, but I seem to not be able to use my camera module with processing. I’m using the GLvideo library, and just opening the simplecapture example. As noted I did enab…

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## [Multiple filters live video feed possible?](https://discourse.processing.org/t/multiple-filters-live-video-feed-possible/14667)

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**Author:** [@nmveld](https://discourse.processing.org/u/nmveld)\
**Replies:** 5\
**Last updated:** [October 25, 2019, 5:14pm UTC](https://discourse.processing.org/t/multiple-filters-live-video-feed-possible/14667 "2019-10-25T17:14:36Z")

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Hi all, I’m trying to add two different filters to a video feed from a webcam. What I try to accomplish is an inverted, grayscale image to feed to multiple led strips. I also add a tint to make the strips a bit warmer. …

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## [Raspberry Pi and AR](https://discourse.processing.org/t/raspberry-pi-and-ar/14831)

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**Author:** [@Rana\_Yehya](https://discourse.processing.org/u/Rana_Yehya)\
**Replies:** 1\
**Last updated:** [October 25, 2019, 2:44am UTC](https://discourse.processing.org/t/raspberry-pi-and-ar/14831 "2019-10-25T02:44:20Z")

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Hello, all! I have a Raspberry Pi kit and I want to run an AR application on it using the Raspberry Pi camera as an input. Can Processing do such an application like this? Is there any resource can help me with that?

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## [How to start/stop individual windows in multiwindow project?](https://discourse.processing.org/t/how-to-start-stop-individual-windows-in-multiwindow-project/14761)

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**Author:** [@NaniAromix](https://discourse.processing.org/u/NaniAromix)\
**Replies:** 7\
**Last updated:** [October 23, 2019, 12:51pm UTC](https://discourse.processing.org/t/how-to-start-stop-individual-windows-in-multiwindow-project/14761 "2019-10-23T12:51:16Z")

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Hey there! I am having a bit of trouble with this and there seems to be no straightforward way to approach it. What I am working on is a multiwindow project, designed to be implemented in a yacht/boat display. Each of t…

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## [Processing on Jetson Nano](https://discourse.processing.org/t/processing-on-jetson-nano/11408)

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**Author:** [@Smantik](https://discourse.processing.org/u/Smantik)\
**Replies:** 32\
**Last updated:** [October 15, 2019, 5:34pm UTC](https://discourse.processing.org/t/processing-on-jetson-nano/11408 "2019-10-15T17:34:05Z")

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Hi. I’m working on a SBC based project using processing. After having some problems with the Raspberry Pi due to the problems of implement an on/off button in a system with a little picoprojector (http://frederickvandenb…

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## [PiCrate-1.0 for Stretch](https://discourse.processing.org/t/picrate-1-0-for-stretch/14632)

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**Author:** [@monkstone](https://discourse.processing.org/u/monkstone)\
**Replies:** 2\
**Last updated:** [October 13, 2019, 11:52am UTC](https://discourse.processing.org/t/picrate-1-0-for-stretch/14632 "2019-10-13T11:52:01Z")

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RaspberryPI users will be familiar with SonicPI for creating music with ruby code, but now there’s now a possibility of creating processing sketches with ruby code. Specifically designed to work on Raspbian stretch and …

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## [Processing with pi4](https://discourse.processing.org/t/processing-with-pi4/14617)

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**Author:** [@maddyna](https://discourse.processing.org/u/maddyna)\
**Replies:** 3\
**Last updated:** [October 12, 2019, 1:27am UTC](https://discourse.processing.org/t/processing-with-pi4/14617 "2019-10-12T01:27:34Z")

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I am trying to use raspberrypi 4 model with processing I am using the GLvideo library to capture live footage using a v2 camera module of raspberry pi. While trying to run the sample code I am not being able to get the…

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## [Video processing with RaspberryPi](https://discourse.processing.org/t/video-processing-with-raspberrypi/14523)

<div class="topic-metadata">

**Author:** [@maddyna](https://discourse.processing.org/u/maddyna)\
**Replies:** 1\
**Last updated:** [October 9, 2019, 1:49am UTC](https://discourse.processing.org/t/video-processing-with-raspberrypi/14523 "2019-10-09T01:49:49Z")

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While trying to use the GLVideo class to process videos with raspberrypi and processing I am having a few problems. Once i am trying to use the pixels loadPixels,pixels …etc i am getting the error message array Index o…

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## [Handling rotary encoder signals](https://discourse.processing.org/t/handling-rotary-encoder-signals/14283)

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**Author:** [@isdn](https://discourse.processing.org/u/isdn)\
**Replies:** 3\
**Last updated:** [October 1, 2019, 12:55am UTC](https://discourse.processing.org/t/handling-rotary-encoder-signals/14283 "2019-10-01T00:55:45Z")

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I’m working on a project that uses this rotary encoder to control an onscreen element. I believe I understand how rotary encoders work in that there are two pins (A & B) that produce high or low pulses based on the direc…

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## [Do any of the video libraries work on Raspberry pi](https://discourse.processing.org/t/do-any-of-the-video-libraries-work-on-raspberry-pi/14123)

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**Author:** [@michaelkpierce](https://discourse.processing.org/u/michaelkpierce)\
**Replies:** 2\
**Last updated:** [September 23, 2019, 4:12pm UTC](https://discourse.processing.org/t/do-any-of-the-video-libraries-work-on-raspberry-pi/14123 "2019-09-23T16:12:31Z")

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Has anyone had any luck with either of the libraries? I have tried examples from both. The examples from the standard library just shows a black. No errors. The GL library example throws an error. I’m running a rasp…

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## [PWM example anyone?](https://discourse.processing.org/t/pwm-example-anyone/13967)

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**Author:** [@stephanschulz](https://discourse.processing.org/u/stephanschulz)\
**Replies:** 0\
**Last updated:** [September 13, 2019, 1:54pm UTC](https://discourse.processing.org/t/pwm-example-anyone/13967 "2019-09-13T13:54:19Z")

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I see from the documentation that PWM.list() should list the available channels. When using upload to pi or directly on the pi nothing gets printed out. When running on macOS two channels get printed. Is this fully fu…

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## [Collect digitalRead() in an array](https://discourse.processing.org/t/collect-digitalread-in-an-array/13952)

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**Author:** [@stephanschulz](https://discourse.processing.org/u/stephanschulz)\
**Replies:** 1\
**Last updated:** [September 12, 2019, 9:46pm UTC](https://discourse.processing.org/t/collect-digitalread-in-an-array/13952 "2019-09-12T21:46:42Z")

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digitalRead() get compared with GPIO.LOW or GPIO.HIGH. What kind of array could I set up to collect and compare the state to it? usually I do: boolean\[\] values = {false,false,false}; if(GPIO.digitalRead(4) == values\[…

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