firmata/processing

processing client for firmata

processing's Issues

analog and digital write

if you write analogWrite to some pin and try to write digitalWrite(LOW) to stop. it just don't work

implementing MODE_INPUT_PULLUP?

firmata/arduino#235

Does this mean that the pullup resistors can be enabled with MODE_INPUT_PULLUP?
Processing tells me that MODE_INPUT_PULLUP does not exist.

Do you have an example on how to enable / use pullup resistors with firmata and processing?

thanks

java.lang.NullPointerException when trying to import cc.arduino.*

Running any of the examples such as arduino_output, arduino_input, or arduino_servo I get a java.lang.NullPointerException. Also when I run a working sketch then add the line "import cc.arduino.*" I get the same error.

The full error is:
java.lang.NullPointerException
at processing.app.Library.getClassPath(Library.java:337)
at processing.mode.java.JavaBuild.preprocess(JavaBuild.java:454)
at processing.mode.java.JavaBuild.preprocess(JavaBuild.java:193)
at processing.mode.java.JavaBuild.build(JavaBuild.java:152)
at processing.mode.java.JavaBuild.build(JavaBuild.java:131)
at processing.mode.java.JavaMode.handleLaunch(JavaMode.java:126)
at processing.mode.java.JavaEditor$34.run(JavaEditor.java:1099)
at java.lang.Thread.run(Thread.java:745)

Firmata not compatible with Processing 2.0

Trying to run any of the Firmata examples in Processing 2.0b5 and 2.0b6 results in an error:

Exception in thread "Animation Thread" java.lang.IllegalAccessError: tried to access class processing.core.PApplet$RegisteredMethods from class cc.arduino.Arduino$SerialProxy
    at cc.arduino.Arduino$SerialProxy.<init>(Arduino.java:119)
    at cc.arduino.Arduino.<init>(Arduino.java:168)
    at arduino_output.setup(arduino_output.java:41)
    at processing.core.PApplet.handleDraw(PApplet.java:2103)
    at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:190)
    at processing.core.PApplet.run(PApplet.java:2006)
    at java.lang.Thread.run(Thread.java:680)

the highlighted line is
arduino = new Arduino(this, Arduino.list()[0], 57600);

StandardFirmata & Processing issue with servos (possibly solved)

Hi,

I think I have found and issue that a few people have had as well (googling: servo firmata processing problem returns a few pages).
Servo control works fine when using the ServoFirmata version but not with the StandardFirmata.

I think I have found the problem and how to solve it.
The problem is not in the arduino firmata but actually in the processing library.

There is an option to set pinMode(pin, SERVO) to use the pin to control a servo (not using PWM). But then the analogWrite method override that (see below), which results in the servo being controller with PWN and having a super erratic behaviour.

public void analogWrite(int pin, int value) { pinMode(pin, PWM); serial.write(ANALOG_MESSAGE | (pin & 0x0F)); serial.write(value & 0x7F); serial.write(value >> 7); }

I've solved that personnally by simply creating a servoWrite method as below:

public void servoWrite(int pin, int value) { pinMode(pin, SERVO); serial.write(ANALOG_MESSAGE | (pin & 0x0F)); serial.write(value & 0x7F); serial.write(value >> 7); }

Not sure if I'm right but I just though I'd share my findings.
Cheers.

Cannot analogRead/analogWrite to A0-A5 pins on Arduino.

At least I couldn't figure out how, and didn't find anything in the documentation to help. arduino.pinMode seems to take an int, and we need a string like "A2" I believe.

Thank you for your time.

Could you update this project to Processing3?

Thanks!!

How to close port of arduino class?

Is there a way to close the connection made with the arduino?

SimpleSerialArduinoscope.pde "error"

Good evening, I am Rinaldy from Indonesia.
I was experimenting with arduino atmega 2560 to make an oscilloscope using arduino.
When I run code processing, I get an error message "The Function id() does not exist"

as shown in the picture below.
Thank you for the help

hi firmata and interrupt

im looking for a solution to use interrupt by processing(read Encoder) while Standardfirmata is uploaded on my arduino

capitalization mismatch on library folder and file names

note the capitalization mismatch between the folder and file names: "arduino/library/Arduino.jar"
Works fine on Processing for Mac, but Processing for Rasberry Pi didn't recognize the library until I renamed it to "arduino.jar"

i2c implementation for processing?

I want to build a design course around processing with physical interaction parts done using arduino and processing/firmata.
It works great for digital/analog sensors and motors, but today many sensors and even motor drivers are i2c.
Will there be a i2c implementation for processing in the near future? thanks!