<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div><br></div><div>What are my options for using a serial port on this setup?<br></div><div><br></div><div>$ jruby -v<br>jruby 1.7.2 (1.9.3p327) 2013-01-04 302c706 on Java HotSpot(TM) 64-Bit Server VM 1.8.0-ea-b71 +indy [linux-amd64]<br><br mce_bogus="1"></div></span></body></html>
on 2013-01-11 17:52
on 2013-01-11 19:40
Craig - JRuby accesses system resources through the Java Virtual Machine, so the question becomes 'how do I access the serial port in Java?'. I googled "java access serial port". There were several solutions; this one was at the top of the list: http://pharos.ece.utexas.edu/wiki/index.php/How_to... It discusses using rxtx (http://rxtx.qbang.org/wiki/index.php/Download) as a library providing/simplifying access to the serial port. You download the tar ball, install the .so files, and use the .jar file included in it. You can ignore all the instructions relating to Eclipse in any way, everything you need to do should be doable on the command line without Eclipse. For a third party jar file, you can just put it somewhere accessible, and add its filespec to $CLASSPATH at runtime. I have an example of doing that with an Oracle JDBC jar file in an article at http://www.bbs-software.com/blog/2013/01/09/using-.... Then you'll need to call the Java library from your JRuby code. - Keith --- Keith R. Bennett http://about.me/keithrbennett
on 2013-01-11 19:41
On further examination, I recommend reading http://www.rfc1149.net/blog/2011/12/01/accessing-s.... He says that PureJavaComm is better than rxtx, and shows a way to access the serial port without any special code at all using sockets and the socat utility. - Keith
Enable email notification
Enable multi-page viewPlease log in before posting. Registration is free and takes only a minute.
Existing account
(Switch to SSL-encrypted connection)
NEW: Do you have a Google/GoogleMail or Yahoo account? No registration required!
Log in with Google account | Log in with Yahoo account
Log in with Google account | Log in with Yahoo account
No account? Register here.