Hello! I'm recently bought lego mindstorm set. What I use for testing: - Laptop with Linux (Debian unstable) with kernel 2.6.16 - LeJOS from CVS (the only version that works properly with USB tower) - Few shell scripts written by myself to ease compilation/upload/run process
After few days of trying misc things, I've encountered a major problem: maximum range of IR direct communication is VERY SMALL... for both: Windows (where original drivers are in use, with IR power setting from Control Panel applet), and with Linux (where legousbtower.ko driver is in use, with my modification to IR power setting, partly from 0.5.3 version of this driver and partly from sniffing USB packets in Windows). In both OS while IR power was set to low, medium and high, the maximum communication range with no external artificial light was maximum 2-3m. With external light turned on, maximum range was abaut 1-1,5m. When uploading a program or firmware to RCX, maximum distance between tower and RCX was about 10-15cm, and even then uploading is failing in 9 for 10 tries. Successful upload can be achieved everytime when I've tower and RCX covered by something, cutted out from external world. My problem is: How to build a robot which uses Vision Command classes and XCam2 wireless camera (with radio range 10-20m), when maximum possible range between robot and IR Tower is something about 2m? Even original Vision Command USB camera has longer cable... How can I amplify power of IR tower, to extend the communication range? The OS is not important (I prefer Linux when both are possible), but what I need is a IR communication range 5m or more. Any ideas? Somebody? Best regards Szymon Madej ---------------------------------------------------------------------- Tysiace zdjec swietnych samochodow! >>> http://link.interia.pl/f1944 ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid7521&bid$8729&dat1642 _______________________________________________ Lejos-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lejos-discussion
