# Electronics (Arduino, etc.)

**URL:** https://discourse.processing.org/c/processing/processing-electronics/25.md?page=17

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

**Page:** 18

---

## [Teensy 3.2 + Octows2811 adaptor - Processing error: InvocationTargetException](https://discourse.processing.org/t/teensy-3-2-octows2811-adaptor-processing-error-invocationtargetexception/15365)

<div class="topic-metadata">

**Author:** [@adds666](https://discourse.processing.org/u/adds666)\
**Replies:** 2\
**Last updated:** [November 10, 2019, 8:22pm UTC](https://discourse.processing.org/t/teensy-3-2-octows2811-adaptor-processing-error-invocationtargetexception/15365 "2019-11-10T20:22:38Z")

</div>

Hello all, New here - wanting to make an LED TV using Teensy 3.2 and ws2811 adaptor. https://www.pjrc.com/teensy/td\_libs\_OctoWS2811.html#videodisplay OS: Ubuntu 16.04 64-bit Intel® Core™ i5-2450M CPU @ 2.50GHz × 4 Go…

---

## [Processing on Jetson TX2 dev kit?](https://discourse.processing.org/t/processing-on-jetson-tx2-dev-kit/15256)

<div class="topic-metadata">

**Author:** [@darioringach](https://discourse.processing.org/u/darioringach)\
**Replies:** 1\
**Last updated:** [November 10, 2019, 5:34pm UTC](https://discourse.processing.org/t/processing-on-jetson-tx2-dev-kit/15256 "2019-11-10T17:34:20Z")

</div>

Any luck installing Processing on the Jetson TX2? Does anyone have step-by-step instructions? Thank you! Dario

---

## [Processing, Arduino and Linux](https://discourse.processing.org/t/processing-arduino-and-linux/15344)

<div class="topic-metadata">

**Author:** [@pandl](https://discourse.processing.org/u/pandl)\
**Replies:** 4\
**Last updated:** [November 9, 2019, 11:08pm UTC](https://discourse.processing.org/t/processing-arduino-and-linux/15344 "2019-11-09T23:08:35Z")

</div>

Thank you for reading my first post. This question relates to the Simple Write serial example. String portName = Serial.list()\[0\]; myPort = new Serial(this, portName, 9600); This doesn’t find the correct port but …

---

## [Convert image in to blinking LED on processing](https://discourse.processing.org/t/convert-image-in-to-blinking-led-on-processing/15022)

<div class="topic-metadata">

**Author:** [@shonerudeetha](https://discourse.processing.org/u/shonerudeetha)\
**Replies:** 45\
**Last updated:** [November 8, 2019, 6:37am UTC](https://discourse.processing.org/t/convert-image-in-to-blinking-led-on-processing/15022 "2019-11-08T06:37:43Z")

</div>

Dear guys, i m a very beginner for processing.i m looking for a help from you.i have connect a SD card and a LED on my arduino board. I know processing can get a pixel array from that image which have saved in SD. ther…

---

## [Processing and thermal printer](https://discourse.processing.org/t/processing-and-thermal-printer/3933)

<div class="topic-metadata">

**Author:** [@moscardo](https://discourse.processing.org/u/moscardo)\
**Replies:** 10\
**Last updated:** [October 8, 2018, 10:07pm UTC](https://discourse.processing.org/t/processing-and-thermal-printer/3933 "2018-10-08T22:07:18Z")

</div>

Hi everyone, I’m working on a project where an EPSON TM-T20II thermal printer must be driven by a Processing sketch. I’ve tried to make it work with the SimpleReceiptPrinter but without success. I think it could be pr…

---

## [More efficient UDP message parsing when receiving colour arrays from Processing on Arduino](https://discourse.processing.org/t/more-efficient-udp-message-parsing-when-receiving-colour-arrays-from-processing-on-arduino/14467)

<div class="topic-metadata">

**Author:** [@sdnorris](https://discourse.processing.org/u/sdnorris)\
**Replies:** 1\
**Last updated:** [November 3, 2019, 12:49pm UTC](https://discourse.processing.org/t/more-efficient-udp-message-parsing-when-receiving-colour-arrays-from-processing-on-arduino/14467 "2019-11-03T12:49:59Z")

</div>

I am making a flexible LED display system using Processing to generate and transmit imagery via OSC to a set of 10 Arduinos (Adafruit Feather HUZZAH), each controlling a single meter long 30-LED NeoPixel strip using the …

---

## [Synchronize access to array](https://discourse.processing.org/t/synchronize-access-to-array/14895)

<div class="topic-metadata">

**Author:** [@pcremades](https://discourse.processing.org/u/pcremades)\
**Replies:** 3\
**Last updated:** [October 23, 2019, 8:16pm UTC](https://discourse.processing.org/t/synchronize-access-to-array/14895 "2019-10-23T20:16:37Z")

</div>

Hi, I’m having problems with an array being updated inside SerialEvent handler. This is the case: I’m using grafica library I get some data from an Arduino through the serial port. I handle this through a SerialEvent …

---

## [Twitter activating machines](https://discourse.processing.org/t/twitter-activating-machines/14783)

<div class="topic-metadata">

**Author:** [@GraceOD](https://discourse.processing.org/u/GraceOD)\
**Replies:** 2\
**Last updated:** [October 18, 2019, 11:59pm UTC](https://discourse.processing.org/t/twitter-activating-machines/14783 "2019-10-18T23:59:50Z")

</div>

Hi guys, Just want to ask a question and see if people have experience in this area, or if this idea is even possible. I want to make a machine that is fuelled by tweets or instagram shares and the machine will aid the…

---

## [Collect data from a local web server](https://discourse.processing.org/t/collect-data-from-a-local-web-server/14691)

<div class="topic-metadata">

**Author:** [@KDarsh20112003](https://discourse.processing.org/u/KDarsh20112003)\
**Replies:** 14\
**Last updated:** [October 14, 2019, 9:35pm UTC](https://discourse.processing.org/t/collect-data-from-a-local-web-server/14691 "2019-10-14T21:35:57Z")

</div>

I found a project (https://maker.pro/arduino/tutorial/how-to-interface-arduino-and-the-mpu-6050-sensor) in which the processing code could get the data from the serial port. I want to make a different version of this pr…

---

## [Convert image in to binary stream with arduino](https://discourse.processing.org/t/convert-image-in-to-binary-stream-with-arduino/14610)

<div class="topic-metadata">

**Author:** [@shonerudeetha](https://discourse.processing.org/u/shonerudeetha)\
**Replies:** 2\
**Last updated:** [October 13, 2019, 5:47pm UTC](https://discourse.processing.org/t/convert-image-in-to-binary-stream-with-arduino/14610 "2019-10-13T17:47:30Z")

</div>

i am a beginner for processing.my project is transmitting ascii value or image through a blinking LED and recieving those ascii and image via LDR… But i did sending and recieving ascii value…it succeed.My transmittin…

---

## [QR code reader with processing and arduino](https://discourse.processing.org/t/qr-code-reader-with-processing-and-arduino/7349)

<div class="topic-metadata">

**Author:** [@yoshvale](https://discourse.processing.org/u/yoshvale)\
**Replies:** 10\
**Last updated:** [October 13, 2019, 4:57am UTC](https://discourse.processing.org/t/qr-code-reader-with-processing-and-arduino/7349 "2019-10-13T04:57:43Z")

</div>

hi i’m yoshua, i’m new in processing my project is robot arm that can read 2 qr code (i.e : object A and object B) and send the data to arduino, so arduino will receive qr data, if arduino read object A then arm robot m…

---

## [Convert Image into ascii value](https://discourse.processing.org/t/convert-image-into-ascii-value/14602)

<div class="topic-metadata">

**Author:** [@shonerudeetha](https://discourse.processing.org/u/shonerudeetha)\
**Replies:** 6\
**Last updated:** [October 11, 2019, 9:46pm UTC](https://discourse.processing.org/t/convert-image-into-ascii-value/14602 "2019-10-11T21:46:33Z")

</div>

sir,i am a beginner for processing…my aim is convert any image into a blinking LED.i did any ascii value into blinking LEd via arduino…Now i need to know how to convert a given image into ascii value… …because i did asci…

---

## [Arduino/Processing Radar](https://discourse.processing.org/t/arduino-processing-radar/14599)

<div class="topic-metadata">

**Author:** [@WildMan98](https://discourse.processing.org/u/WildMan98)\
**Replies:** 1\
**Last updated:** [October 11, 2019, 11:47am UTC](https://discourse.processing.org/t/arduino-processing-radar/14599 "2019-10-11T11:47:16Z")

</div>

I’m making a Radar with the help of Arduino. However, the processing code shows this error message. RuntimeException: Error opening serial port COM3: Port busy This is my code; import processing.serial.\*; // imports l…

---

## [Audio plays but screen stays black](https://discourse.processing.org/t/audio-plays-but-screen-stays-black/14586)

<div class="topic-metadata">

**Author:** [@SimonRedfox](https://discourse.processing.org/u/SimonRedfox)\
**Replies:** 1\
**Last updated:** [October 11, 2019, 1:52am UTC](https://discourse.processing.org/t/audio-plays-but-screen-stays-black/14586 "2019-10-11T01:52:20Z")

</div>

Here is my code, the scenario is opened from Arduino button. One button plays 1 and the other 2. The buttons and the printing work good. The screen opens, audio plays but the movie/frames don’t. import processing.serial…

---

## [Arduino – Processing – Java](https://discourse.processing.org/t/arduino-processing-java/14581)

<div class="topic-metadata">

**Author:** [@Jojo43](https://discourse.processing.org/u/Jojo43)\
**Replies:** 1\
**Last updated:** [October 10, 2019, 5:18pm UTC](https://discourse.processing.org/t/arduino-processing-java/14581 "2019-10-10T17:18:00Z")

</div>

I want to reach the values of the counter about processing. My problem is that my Arduino output is X20, and Y20 (step) and I want the output to be displayed on two surfaces One for X and Second Y. String X20 on X and 2…

---

## [I can't find this error online](https://discourse.processing.org/t/i-cant-find-this-error-online/14569)

<div class="topic-metadata">

**Author:** [@SimonRedfox](https://discourse.processing.org/u/SimonRedfox)\
**Replies:** 1\
**Last updated:** [October 10, 2019, 12:02pm UTC](https://discourse.processing.org/t/i-cant-find-this-error-online/14569 "2019-10-10T12:02:41Z")

</div>

\*\* (Processing core video:1627): WARNING \*\*: gstvideo: failed to get framerate property of pad playsink1:audio\_sink This is the error I’m getting for the following codes processing: import processing.serial.\*; import …

---

## [Can I read\_voltage.pde to graph voltage as sound?](https://discourse.processing.org/t/can-i-read-voltage-pde-to-graph-voltage-as-sound/14551)

<div class="topic-metadata">

**Author:** [@MatthewClark](https://discourse.processing.org/u/MatthewClark)\
**Replies:** 1\
**Last updated:** [October 10, 2019, 12:48am UTC](https://discourse.processing.org/t/can-i-read-voltage-pde-to-graph-voltage-as-sound/14551 "2019-10-10T00:48:16Z")

</div>

Hello, Pretty new to Processing so hopefully this makes sense: Am currently running voltage.ino on an Arduino and am graphing the voltage in Processing using read\_voltage.pde. This allows me to see a visual of the vol…

---

## [Arduino DCC interface with processing Software](https://discourse.processing.org/t/arduino-dcc-interface-with-processing-software/14541)

<div class="topic-metadata">

**Author:** [@Paul63](https://discourse.processing.org/u/Paul63)\
**Replies:** 2\
**Last updated:** [October 9, 2019, 9:09am UTC](https://discourse.processing.org/t/arduino-dcc-interface-with-processing-software/14541 "2019-10-09T09:09:23Z")

</div>

Hi all I am Paul from Italy, I am beginner with Processing , I sow one railway application on internet. I like know if somebody have experience to interface Arduino with Processing software to manage in DCC railway mo…

---

## [Detect audio of computer and send info to Arduino](https://discourse.processing.org/t/detect-audio-of-computer-and-send-info-to-arduino/14330)

<div class="topic-metadata">

**Author:** [@niconico](https://discourse.processing.org/u/niconico)\
**Replies:** 3\
**Last updated:** [October 8, 2019, 6:19am UTC](https://discourse.processing.org/t/detect-audio-of-computer-and-send-info-to-arduino/14330 "2019-10-08T06:19:00Z")

</div>

Hello, I´m new with processing, I work with arduino 8 years and now I need processing for a Project The project are very simple… I need detect the audio of the computer and when the computer have sound activate a rela…

---

## [Add a horizontal scroll bar for real time data plot](https://discourse.processing.org/t/add-a-horizontal-scroll-bar-for-real-time-data-plot/14385)

<div class="topic-metadata">

**Author:** [@KGS](https://discourse.processing.org/u/KGS)\
**Replies:** 3\
**Last updated:** [October 4, 2019, 10:15am UTC](https://discourse.processing.org/t/add-a-horizontal-scroll-bar-for-real-time-data-plot/14385 "2019-10-04T10:15:57Z")

</div>

I am plotting a real-time data plot, I need to scroll across the only x-axis to visualize previous data points from the current data. Furthermore, I need to restore back to the current position after scrolling. I have u…

---

## [IR cameras for outdoor installations using processing](https://discourse.processing.org/t/ir-cameras-for-outdoor-installations-using-processing/14345)

<div class="topic-metadata">

**Author:** [@rojele](https://discourse.processing.org/u/rojele)\
**Replies:** 0\
**Last updated:** [October 1, 2019, 12:12pm UTC](https://discourse.processing.org/t/ir-cameras-for-outdoor-installations-using-processing/14345 "2019-10-01T12:12:29Z")

</div>

Hi! I’m searching for any advice on IR cams (or hackable webcam) that could allow me to track people in a distance of about 20 meters. The most of the hackable webcams I know turns out to have this problem with long dis…

---

## [Volume and motion](https://discourse.processing.org/t/volume-and-motion/14186)

<div class="topic-metadata">

**Author:** [@camilacaceresl](https://discourse.processing.org/u/camilacaceresl)\
**Replies:** 3\
**Last updated:** [September 27, 2019, 6:35pm UTC](https://discourse.processing.org/t/volume-and-motion/14186 "2019-09-27T18:35:33Z")

</div>

I wrote a code where the amplitude of a audio input is mapped to the amplitude of a sin function. Right now is just controlling the position of ellipse on a screen but i want this motion to be applied to a drawing mach…

---

## [How to save multiple arrays to one csv file?](https://discourse.processing.org/t/how-to-save-multiple-arrays-to-one-csv-file/14234)

<div class="topic-metadata">

**Author:** [@KGS](https://discourse.processing.org/u/KGS)\
**Replies:** 2\
**Last updated:** [September 27, 2019, 8:45am UTC](https://discourse.processing.org/t/how-to-save-multiple-arrays-to-one-csv-file/14234 "2019-09-27T08:45:57Z")

</div>

I have interfaced and Arduino with 2 different sensors (Temperature and pressure) having different sampling rates. I have established the serial communication with Processing and saved the data in a csv file. I have save…

---

## [Unable to receive serial data from Arduino](https://discourse.processing.org/t/unable-to-receive-serial-data-from-arduino/14100)

<div class="topic-metadata">

**Author:** [@micoxon](https://discourse.processing.org/u/micoxon)\
**Replies:** 5\
**Last updated:** [September 22, 2019, 6:44pm UTC](https://discourse.processing.org/t/unable-to-receive-serial-data-from-arduino/14100 "2019-09-22T18:44:22Z")

</div>

Hi fellows, I’m trying for weeks to transmit data from an Arduino Leonardo to a Processing program via the serial port. I first took over programs that I used, back in 2011, with an Arduino Duemilanove and Processing 1…

---

## [Who Stole my cat's food?](https://discourse.processing.org/t/who-stole-my-cats-food/13895)

<div class="topic-metadata">

**Author:** [@laptophead](https://discourse.processing.org/u/laptophead)\
**Replies:** 25\
**Last updated:** [September 22, 2019, 1:02am UTC](https://discourse.processing.org/t/who-stole-my-cats-food/13895 "2019-09-22T01:02:55Z")

</div>

I am trying to build a system that will monitor my cat’s food bowl. Squirrels and rats steal from there all the time. System overview: An arduino with motion detectors is overlooking the bowl. When presence is detect…

---

## [How to create real time data measuring GUI from processing?](https://discourse.processing.org/t/how-to-create-real-time-data-measuring-gui-from-processing/14081)

<div class="topic-metadata">

**Author:** [@KGS](https://discourse.processing.org/u/KGS)\
**Replies:** 2\
**Last updated:** [September 20, 2019, 8:11am UTC](https://discourse.processing.org/t/how-to-create-real-time-data-measuring-gui-from-processing/14081 "2019-09-20T08:11:02Z")

</div>

I need to create a graphical user interface (GUI) with processing to obtain real time data measurements obtained from arduino serial communication? How can I do it on processing software?? Any examples or tutorials??

---

## [Code understanding and Printer](https://discourse.processing.org/t/code-understanding-and-printer/1367)

<div class="topic-metadata">

**Author:** [@Farida](https://discourse.processing.org/u/Farida)\
**Replies:** 1\
**Last updated:** [August 5, 2018, 5:56pm UTC](https://discourse.processing.org/t/code-understanding-and-printer/1367 "2018-08-05T17:56:11Z")

</div>

Hi :smile: I found a code that I really love but I’m having troubles understanding it. Can anyone help me understand each line? And another question: I added a screenshot to the code and want this screenshot to be conne…

---

## [Use the Arduino Processing Interface](https://discourse.processing.org/t/use-the-arduino-processing-interface/9409)

<div class="topic-metadata">

**Author:** [@bking](https://discourse.processing.org/u/bking)\
**Replies:** 10\
**Last updated:** [September 10, 2019, 10:42pm UTC](https://discourse.processing.org/t/use-the-arduino-processing-interface/9409 "2019-09-10T22:42:17Z")

</div>

Hello everyone, I can not transmit or receive PWM information, sent with analogWrite from Arduino and find it in Processing. I used the Arduino Input example in Processing and I can get the information from the Arduino…

---

## [This code works in my friend's pc but I get error](https://discourse.processing.org/t/this-code-works-in-my-friends-pc-but-i-get-error/13859)

<div class="topic-metadata">

**Author:** [@sp\_sarvesh](https://discourse.processing.org/u/sp_sarvesh)\
**Replies:** 7\
**Last updated:** [September 8, 2019, 12:34am UTC](https://discourse.processing.org/t/this-code-works-in-my-friends-pc-but-i-get-error/13859 "2019-09-08T00:34:00Z")

</div>

I get ArrayOutOf BoundsException: 0 on line 12 when I run this code, and then java sm has stopped responding when I try to close the small window. Can anyone please help me with this? This same code works for my friend. …

---

## [Control Brightness Via Artnet and DMX](https://discourse.processing.org/t/control-brightness-via-artnet-and-dmx/13779)

<div class="topic-metadata">

**Author:** [@makerinchief](https://discourse.processing.org/u/makerinchief)\
**Replies:** 2\
**Last updated:** [September 3, 2019, 10:55pm UTC](https://discourse.processing.org/t/control-brightness-via-artnet-and-dmx/13779 "2019-09-03T22:55:58Z")

</div>

I’m controlling a bunch of RGB led strips using Artnet protocol and some DMX decoders like the one in this link: I’m able to control the colors just fine but I want to control the brightness of certain RGB strips. I …

[Previous page](https://discourse.processing.org/c/processing/processing-electronics/25.md?page=16)

[Next page](https://discourse.processing.org/c/processing/processing-electronics/25.md?page=18)