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Showing results for tags 'lejos'.
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Play TicTacToe against this LEGO Mindstorms EV3 robot. It uses three motors to drop its balls into the right field and a NXTCam to view the board. It then calculates the best move using a MiniMax Algorithm. All future moves are explored and rated according to their winning chances. An IR sensor detects your hand when you drop your ball. The robot is using red balls and the human player uses blue balls. The java code is available at Github and the building instructions are available for LEGO Digital Designer on my website show in the description. I used the MinuteBot baseplate, which is useful for building static Mindstorms models. I also used a LED lamp to provide consistent lighting that is powered through the USB port of the EV3. The position of the camera can be centered on the board using the wrench and through sliding along the axles. I hope you enjoy this robot. More information at http://www.bartneck.de/2017/07/17/tictactoe-playing-lego-mindstorms-robot-using-computer-vision/ -
Hi ! Some students and me create a new exercise for other students. This time we constructed a robot using mecanum wheels. Students should learn how to control this robot using mathematical equations and implement them in Java leJOS. Have fun! Andreas -
I've been testing leJos with my old NXT brick and something seems to be wrong.When I flash the brick with latest leJos firmware, it works fine. After some time, it starts spewing some garbage onscreen: The only thing I can do is press Off button, but then it doesn't boot up again and I need to try multiple leJos/official firmware reflashes to get it to work. Has anyone encountered anything like that? Any help would be greatly appreciated.