Just thought I'd share a quick update on my project to build an Arduino-based control pendant for EMC.
http://www.youtube.com/watch?v=flajZMff28U This video shows an Arduino communicating with EMC and functioning as both an MPG and remote DRO. I will be publishing more details along with source code over on my blog at http://ckcnc.wordpress.com as I get the various loose ends more tied up. In the meantime I am starting to feel like this is approaching robustness. The serial protocol may need a little more work to ensure that things either can't get out of sequence, or that it can recover from such events without requiring a reset. Otherwise it seems to run happily at 9600bps. The DRO is limited to update 10x/sec to avoid saturating the line. As a human-machine interface, things seem to be real-timey enough to function effectively. In this setting, I think the only limitation on the number of I/O signals is the Arduino's memory and processing power. I am using 7.3k of the 16k flash, and I don't know how much of the SRAM and CPU. Most of that is going to the LCD and encoder-reading functions. With 6 outputs to drive the LCD, I have 10 left over, which could theoretically support a 25-key matrix. With all the room on the LCD, I'm curious to see how much more I can squeeze in, e.g., by adding multiple pages to the display. ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today. http://p.sf.net/sfu/beautyoftheweb _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
