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 | | Re: Custom Firmware, IR Problems, and Dead RCXs (long)
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| I don't understand all the problems about blown IR-LEDs and don't believe anyone will ever see 1A flowing through his IR-LED's. My experience: I'm doing contiunuous data transfers for hours in long range mode, with fresh batteries I measure 100 mA (...) (23 years ago, 29-May-01, to lugnet.robotics)
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| | RE: Custom Firmware, IR Problems, and Dead RCXs (long)
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| Hi all, Just a couple a quick comments on this thread - I'm a firmware design engineer who's done lots of work with IrDA. I don't, however, have any experience with the internals of the RCX or the IR Tower, other than owning them and reading this (...) (23 years ago, 27-May-01, to lugnet.robotics)
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| | RE: Custom Firmware, IR Problems, and Dead RCXs (long)
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| (...) Well, yes and no. The biggest risk is when you use the tower or the RCX in high-power (far) mode for extended transmissions. I was thinking about why we have not received more posts about dead RCXs. My old pbForths (and I think legOS too) set (...) (23 years ago, 27-May-01, to lugnet.robotics)
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| | RE: Custom Firmware, IR Problems, and Dead RCXs (long)
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| (...) You are right, but the RCX and the tower are right at the hairy edge. The additional 50R impedance will leave the near mode essentially unchanged and I'll sacrifice on the high range. Start with the tower. If you use a 9V battery, the IR (...) (23 years ago, 28-May-01, to lugnet.robotics)
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| | Custom Firmware, IR Problems, and Dead RCXs (long)
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| The following information is my own opinion and not endorsed or verified in any way by LEGO. That being said, I think that now is the time to relate some experiences I've had over the past couple of months with my RCX and IR tower - and it boils (...) (23 years ago, 27-May-01, to lugnet.robotics)
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| | Re: Custom Firmware, IR Problems, and Dead RCXs (long)
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| Oh, geez, this could be bad. Could changing the firmware to reduce comm activity fix this? It seems to be a problem of usage, not specific firmware properties (i.e. constant data uplaoding.) Andy (...) -- See my Visual Interface for leJOS at (URL) (23 years ago, 27-May-01, to lugnet.robotics)
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| | Re: Train 1
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| (...) I'll second that motion. I won't be LEGO'd out 'til I'm dead. The only thing keeping me from Brickfest is the time & money. And as Dave has said, after Train1 I'm inspired to do much more, but wonder how I will ever find the time & resources (...) (23 years ago, 29-May-01, to lugnet.org.ca.rtltoronto)
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| | Re: Rolling Blackouts
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| (...) NO, you won't actually. It will have to be cheaper AND more convenient. Too many public transportation systems are"broken" in that you have to use your CAR to get to them in the first place. There was an article in the SJ Merc last week or the (...) (23 years ago, 30-May-01, to lugnet.off-topic.debate)
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| | Dead IR Tower
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| Well, after months of flaky IR comms between my tower and the RCX, I can finally say that the tower has died. :-( I've forgotten who first suggested it, but using a videocamera to see if the IR led is still functional is brilliant! I confirmed that (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx)
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beneke
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| | Re: Spoked Train Wheels?
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| (...) Dear John Torsten has made the outer red rings (with a big flange) on a lathe from plastic material you can buy in any diameters (he used 50mm round material of red PVC). Only to fix these outer rings on the spoked wheels he uses O-rings: You (...) (25 years ago, 2-Feb-00, to lugnet.trains)
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beneke
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| | Re: Dead RCX
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| (...) Thanks for the response. I tried bending the tabs to ensure they were making contact with the batteries. That didn't work, so I opened the case and confirmed that the 9V (actually 9.6V) was reaching the voltage regulator. It was, so I know (...) (23 years ago, 19-May-01, to lugnet.robotics.rcx)
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