Juergen wrote: > Maybe we should have some regular progress report about > Lejos on the NXT? OK - here is a start:
Lejos NXJ (a very preliminary alpha version) can be downloaded from http://lejos.sourceforge.net/ As of 28 Feb, the development version (not yet available for download, but perhaps soon) has all the basic capabilities of Lejos for the RXC except for the communications. The Sound class can play tones, the LCD can print text and integers and also draw lines and circles. All the Sensors classes produce useful data: Light, Touch, Sound, UltraSonic, and Compass. The Motor class incorporates its rotation sensor. It is actually a servo class: can accurately control speed (in degrees/sec), and rotate the motor to a specified angle with an accuracy of better than +- 2 deg. The Motor class stops smoothly (without the overshoot and back up that the Lego firmware exhibits), and accelerates smoothly so wheels do not skid. A new class Pilot controls vehicle movement: direction, speed, and turning rate (if the vehicle has uses differential steering of two motors) and movement distance (linear and angular). The Navigator class, in addition to everything the Lejos Navigator does, can control the robot travel in a circular arc and keep track of its position and heading angle as it does. Some progress on the Bluetooth communications front has begun. (Bluetooth is much more complicated than the RCX IR) We still do not have anything like an operating system. A program downloaded via USB executes immediately, and then the NXT quits. But for me it?s better than the IR download for the RXC. Roger ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Lejos-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lejos-discussion
