I am just a beginner. This my processing code; stil lhave a little trouble with the clear part of the input function . but main thing is the arduino write.out. My arduino code works. with the serial port. The processing code connects to the arduino but the data is not registering. Thank you for any…

and what feed back you get from arduino when you send your setpoints? ups: that part : get and show the arduino info in processing seems missing!

when I run the processing program , the Rx led blinks once. is that what you mean? when I use Serial monitor, put in 3 numbers, my RGB led comes on. I have replaced the get and set arduino info by this line; arduinoPort = new Serial(this,"/dev/tty.usbmodem1411", 9600 ); “/dev/tty.usbmodem14…

[image] angelman: is that what you mean? no, from arduino you print lots of text to serial port do you see this text in processing? can you give a screenshot from the arduino IDE monitor ( terminal ) and from the processing console print

[image] angelman: g = createGraphics(400,200); The line above is correct. However, you should name it something else as g is a variable that Processing uses to manage its main sketch. It is unclear, as I am not able to run your example, if this has anything to do with your reported problem. N…

thank you [kfrajer]; I have commented out the serial events. This way you can use the code in processing. mainly I would like to know how to clear the color bar after clear is pressed. I will work on the other. //generate color barcode by typing input , //save it to computer and broadcast the colo…

you are saying that once the right connection is made between the arduino and processing that the serial.print from the arduino should appear in the processing console? and that using terminal (which I am not familiar with but will give it a go ) you should see the serial.write coming from the proc…

[image] angelman: and that using terminal (which I am not familiar with but will give it a go ) sorry, the Arduino IDE monitor is a terminal software but you could use any other “serial terminal” software but no idea whats good on MAC so , where is your code, the minimal version what jus…

so I learned lots today. This is where I am up to; any help I am grateful for. This is my arduino code which I got from here; https://forum.arduino.cc/index.php?topic=396450.0 This line I cant get to work; dataNumber = atoi(receivedChars); ``` Example 4 - Receive a number as text and convert…

at first i load the code you linked to and it does work ( sorry i just had a arduino leonardo connected. ) [2019-02-02_15-41-12_snap] meaning it understands one integer number send with [enter] it could take 32 bytes but that would be a much too big int int - Arduino Reference The…

I I think I see the problem. char receivedChars[numChars]; is 4 bytes. an int is only 2 bytes so dataNumber = atoi(receivedChars); does not work; How to do that?

What is right method to pass led info from processing to arduino

Processing Electronics (Arduino, etc.)

jb4x February 2, 2019, 9:45pm 15

Hi angelman,

I think those posts can help you figure it out:

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Use the Arduino Processing Interface Electronics (Arduino, etc.)	10	3543	September 10, 2019
Null Pointer Exception with Arduino Communication Electronics (Arduino, etc.)	19	910	August 3, 2021
Sending multiple numbers to Arduino via Serial Electronics (Arduino, etc.)	3	1119	September 1, 2019
Arduino + Processing Serial Port DATA TRANSFER Electronics (Arduino, etc.)	16	2284	February 19, 2020
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What is right method to pass led info from processing to arduino

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