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If the ultrasonic cannot echo-locate the objects because they're too small, even with the sensor suspended very close to the floor, I suggest using a very sensitive feeler out front. It can be sticking forward like a jousting lance, and your robot can swivel back & forth while traveling to scan. The trick to making it very sensitive is to: (1) make it ...


1

The clicking mode means that you need to reload the firmware on the NXT (under the Tools menu in the NXT software). If you still get the overcurrent shutdown using different cables and different computers, then the conclusion has to be that there is something wrong with the NXT itself. The USB port should be drawing little to no current at all since the NXT ...


1

Disclaimer: I have never used the EV3 interface, only the text based programming languages for the NXT. Therefore I might be proven wrong. I need a reliable way to read the gyro sensor readings I think the gyro sensor should have come with the appropriate instructions to do that. If not, you can find many tutorials online, such as this: ...


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There are two sites I can think of that describe commonly used gear assemblies. Both sites make use of animations to illustrate how the gears work. LEGO Education: Constructopedia This web article produced by The LEGO Group introduces common, basic usages of gears and pulleys. It includes alterations to the direction of gears, idler gears, gearing up/down ...


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I've had trouble finding good examples as well. One of the most interesting one is, sadly, in Spanish, but the images (and some help from Google Translate) helped me some. Hopefully it can be a start. http://www.hispalug.com/foro/index.php?topic=11730.0



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