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Steve H. 's legway, needless to say, is very cool. I wonder if I may obtain expertise ideas on the following: . I wonder if anyone has tried this with the regular RCX sensors + Robolab2.9.2 using the Optimizer feature. The Optimizer is supposed to (...) (18 years ago, 24-Feb-07, to lugnet.robotics.nxt)
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| | Re: Surveying MTBF of Edu NXTs
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(...) Thanks Folks. I'm just finishing up a class for 9 & 10 year olds. When I get home, I'll try resetting and upgrading OOBER. Without the tears and emotions breaking around me, I should be able to isolate the bug. (18 years ago, 24-Feb-07, to lugnet.robotics.nxt)
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| | Re: Surveying MTBF of Edu NXTs
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(...) Ouch, I understand quite well, actually*. But I agree with John, it sounds like the NXT might be in firmware update mode. If you *haven't* already done it, download the latest firmware (1.04), and a patch for the driver (1.02), from LEGO's (...) (18 years ago, 24-Feb-07, to lugnet.robotics.nxt)
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| | Re: Surveying MTBF of Edu NXTs
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(...) It sounds to me like the NXT is simply in firmware download mode. There is no visible reaction on the NXT once it is in that mode but you should hear a faint clicking sound. That's what the reset button does - i.e., it puts the NXT into (...) (18 years ago, 24-Feb-07, to lugnet.robotics.nxt)
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| | BricxCC & NBC/NXC News
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The Sourceforge shell service finally came back on line today so I was able to update my web pages again. The official links to beta 27 are up now. I have also uploaded a revision to Danny Benedettelli's fantastic NXC Tutorial (and sample code). And (...) (18 years ago, 24-Feb-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Surveying MTBF of Edu NXTs
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(...) Two 6th grade girls at Ladd Acres Elementary in Hillsboro Oregon USA, named the NXT, "OOBER" out of the box. They used a rechargeable until that needed recharging. I replaced their original rechargeable with another one. Today, about 30 (...) (18 years ago, 24-Feb-07, to lugnet.robotics.nxt)
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| | RICScript
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You may not find this terribly interesting, but I have implemented an RIC to Text converter (a decompiler, if you will) which generates source code for an RIC file in a text format. Soon BricxCC will have support for writing and (...) (18 years ago, 24-Feb-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Surveying MTBF of Edu NXTs
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First, let me repeat the request for specifics. I *have* had some reports of indivdual sensors failing (and being replaced by LEGO), as well as the rare motor that seems a little bit to high in internal friction (and, again, at least addressed by (...) (18 years ago, 23-Feb-07, to lugnet.robotics.nxt)
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| | Re: Surveying MTBF of Edu NXTs
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(...) Hi Fly, I suspect that your NXTs are fine. On the other hand, I suspect your rechargeables are toast; there is a big difference between those two things. An underpowered NXT will behave erratically, and therefore, as the battery looses its (...) (18 years ago, 23-Feb-07, to lugnet.robotics.nxt)
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| | Re: Surveying MTBF of Edu NXTs
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(...) You should be able to estimate time-to-failure in the presence of your censored data; people do this all the time in engineering and cancer and many other fields. Steve H seems surprised at the fact that any NXT died and I must say that I am (...) (18 years ago, 23-Feb-07, to lugnet.robotics.nxt)
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