{"id":10312,"date":"2014-01-07T21:31:33","date_gmt":"2014-01-08T02:31:33","guid":{"rendered":"http:\/\/scruss.com\/blog\/?p=10312"},"modified":"2015-11-01T08:55:12","modified_gmt":"2015-11-01T13:55:12","slug":"processing-2-1-oracle-java-raspberry-pi-serial-arduino-%e2%98%ba","status":"publish","type":"post","link":"https:\/\/scruss.com\/blog\/2014\/01\/07\/processing-2-1-oracle-java-raspberry-pi-serial-arduino-%e2%98%ba\/","title":{"rendered":"Processing 2.1 + Oracle Java + Raspberry Pi + Serial + Arduino = \u00e2\u02dc\u00ba"},"content":{"rendered":"

Hey! This is very old and there’s an officially supported<\/a> version out<\/a> now<\/span> coming out very soon<\/del>.<\/strong><\/span><\/p>\n

Update for Raspberry Pi 2\/Processing 2.2.1\/Processing 3.0.5<\/strong>: Raspbian now ships with Java 8, and Processing only likes Java 7. oracle-java7-jdk<\/tt> is still in the repos, so install that, and follow the instructions below. It’s a bit flakey, but when it runs, runs quite fast on the Raspberry Pi 2. You might have more luck running Processing.js<\/a> or p5.js<\/a> in the browser.<\/p>\n

With Sun<\/del> Oracle hardfloat Java now available, Processing now runs at a decent clip on the Raspberry Pi. My old instructions<\/a> are now very obsolete. Here are current, tested instructions for installing it under Raspbian<\/a>.<\/p>\n

[This is a particular solution to installing a Serial\/Firmata-enabled Processing<\/a> 2.1 distribution on a Raspberry Pi. Processing still has issues with other aspects of visual programming (particularly video) that I’m not addressing here.<\/em>]<\/p>\n

A lot of software is installed here, and much of it depends on previous steps. Don’t jump in mid-way and expect it to work.<\/p>\n

Update the system<\/h2>\n

Always a good plan if you’re doing major upgrades:<\/p>\n

sudo apt-get update\r\nsudo apt-get dist-upgrade<\/pre>\n
Install Sun<\/del> Oracle Java<\/h2>\n
sudo apt-get install oracle-java7-jdk<\/pre>\n
Check if the right version is installed as default: java -version<\/span> should give<\/p>\n
java version \"1.7.0_40\"\r\nJava(TM) SE Runtime Environment (build 1.7.0_40-b43)\r\nJava HotSpot(TM) Client VM (build 24.0-b56, mixed mode)<\/pre>\n
If you get anything else, you need to make Sun<\/del> Oracle’s version the default:<\/p>\n
sudo update-alternatives --config java<\/pre>\n
Download & Install Processing<\/h2>\n
Go to Download \\ Processing.org<\/a> and get the Linux 32-bit version.\u00c2\u00a0 It’s big; about 100 MB. I’m going to install it in my home directory, so the base path will be ~\/processing-2.1<\/span>. Extract it:<\/p>\n
tar xvzf processing-2.1-linux32.tgz<\/pre>\n
Now you have to remove the included x86<\/em> Java runtime, and replace it with the Raspberry Pi’s armhf<\/em> one:<\/p>\n
rm -rf ~\/processing-2.1\/java \r\nln -s \/usr\/lib\/jvm\/jdk-7-oracle-armhf ~\/processing-2.1\/java<\/pre>\n
You should now have a Processing installation that will run, but there’s some more we need to get serial and Arduino support.<\/p>\n
Install the\u00c2\u00a0 java Simple Serial connector<\/h2>\n
Download jSSC-2.6.0-Release.zip<\/a> and extract it:<\/p>\n
unzip jSSC-2.6.0-Release.zip<\/pre>\n
Now overwrite the jssc.jar that ships with Processing with the one you just downloaded:<\/p>\n
mv jSSC-2.6.0-Release\/jssc.jar ~\/processing-2.1\/modes\/java\/libraries\/serial\/library\/<\/pre>\n
(You can remove the jSSC folder now: rm -r jSSC-2.6.0-Release<\/span>)<\/p>\n
Test Processing’s serial support<\/h2>\n
You’re almost there! Fire up Processing:<\/p>\n
~\/processing-2.1\/processing<\/pre>\n
and try Perhaps the World’s Most Boring Processing Sketch<\/em>\u00e2\u201e\u00a2<\/a>:<\/p>\n
\r\n\/\/ Example by Tom Igoe\r\n\r\nimport processing.serial.*;\r\n\r\n\/\/ The serial port\r\nSerial myPort;\r\n\r\n\/\/ List all the available serial ports\r\nprintln(Serial.list());\r\n<\/pre>\n
\"Screenshot<\/a>When this runs (it’s a little slow), you should get a single line of output, which should start \/dev\/tty<\/span>___:<\/p>\n
\/dev\/ttyACM0<\/pre>\n
(I have an Arduino Leonardo<\/a> attached, which usually appears as an ACM device.)<\/p>\n
Installing Arduino\/Firmata support<\/h2>\n
(I’m not going to go into uploading Firmata<\/a> onto your Arduino<\/a> here. All I can recommend is that you use the newest version at firmata\/arduino<\/a>, rather than the old code bundled with your Arduino distribution.<\/em>)<\/p>\n
Exit Processing, and download processing-arduino.zip from firmata\/processing<\/a>. Extract it into your Processing sketchbook:<\/p>\n
unzip processing-arduino.zip -d ~\/sketchbook\/libraries\/<\/pre>\n
For tedious reasons, you also have to rename one of the files:<\/p>\n
mv\u00c2\u00a0 ~\/sketchbook\/libraries\/arduino\/library\/Arduino.jar\u00c2\u00a0 ~\/sketchbook\/libraries\/arduino\/library\/arduino.jar<\/pre>\n
Start up Processing again, and\u00c2\u00a0 save Most Probably the World’s Second Least Interesting Processing Program\u00e2\u201e\u00a2<\/em><\/a>:<\/p>\n
\r\nimport processing.serial.*;\r\nimport cc.arduino.*;\r\nArduino arduino;\r\nint ledPin = 13;\r\n\r\nvoid setup()\r\n{\r\n  println(Arduino.list());\r\n  arduino = new Arduino(this, Arduino.list()[0], 57600);\r\n  arduino.pinMode(ledPin, Arduino.OUTPUT);\r\n}\r\n\r\nvoid draw()\r\n{\r\n  arduino.digitalWrite(ledPin, Arduino.HIGH);\r\n  delay(1000);\r\n  arduino.digitalWrite(ledPin, Arduino.LOW);\r\n  delay(1000);\r\n}\r\n<\/pre>\n
\"Screenshot<\/a>
\nWhat this sketch does is emulate the \u00c2\u00b5C’s \u00e2\u20ac\u0153Hello World\u00e2\u20ac\u009d program, Blink<\/a>. It flashes the board’s LED once per second. Boring? Yes. But if it worked, you have a working Processing 2.1 installation on your Raspberry Pi. Go forth and make more interesting things.
\n(Props to bitcraftlab\/wolfing<\/a> for the basic outline for installing Processing, and for samaygoenka<\/a> for the prodding needed to update and test the Processing installation process. If you’re still stuck, the Processing 2.0 Forum<\/a> and the Raspberry Pi Forum<\/a> are good places to ask.<\/em>)<\/p>\n","protected":false},"excerpt":{"rendered":"
Hey! This is very old and there’s an officially supported version out now coming out very soon. Update for Raspberry Pi 2\/Processing 2.2.1\/Processing 3.0.5: Raspbian now ships with Java 8, and Processing only likes Java 7. oracle-java7-jdk is still in the repos, so install that, and follow the instructions below. It’s a bit flakey, but […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7],"tags":[2207,2543,1334,2765,2541,2510,2536,2542,1539],"class_list":["post-10312","post","type-post","status-publish","format-standard","hentry","category-computers-suck","tag-arduino","tag-firmata","tag-java","tag-oracle","tag-processing","tag-raspberrypi","tag-raspbian","tag-serial","tag-sun"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pQNZZ-2Gk","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/10312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/comments?post=10312"}],"version-history":[{"count":8,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/10312\/revisions"}],"predecessor-version":[{"id":12431,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/posts\/10312\/revisions\/12431"}],"wp:attachment":[{"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/media?parent=10312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/categories?post=10312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scruss.com\/blog\/wp-json\/wp\/v2\/tags?post=10312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}