 | | Re: Teaching Bluetooth and Protocols
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(...) ... (...) Just to be clear, you got 5 pairs of master/slave NXTs to communicate as pairs? But if you added a 6th pair, then those two could not connect to each other? That's really strange... Ralph (17 years ago, 11-Jul-07, to lugnet.robotics.nxt)
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| | Teaching Bluetooth and Protocols
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I've reached a goal this summer. Last week, 5 kids got into Bluetooth and made simple remote controls. I provided two simple NXT-G programs, BTSend on the Master NXT Remote Control and BTRecv on the Robot Slave. BTSend uses the left and right NXT (...) (17 years ago, 11-Jul-07, to lugnet.robotics.nxt)
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| | Re: Introduction of LEJOS OSEK
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LEJOS OSEK ver.1.03 was just released. (URL) 1.03 includes a minor bug fix and a new interesting application example which is called NXT GT. NXT GT is a Bluetooth based R/C car and you can control the NXT GT by using PC analog game pad controller! (17 years ago, 11-Jul-07, to lugnet.robotics.nxt)
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| | Re: Sign of center pin on power adaptor
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(...) Whoops, I missed that there was a third option. I concur with this, as it's both the right voltage and confirmed AC. The mA rating, BTW, is a capacity rating, so it will work for anything that draws 800mA or less. The NXT adapter is rated for (...) (17 years ago, 11-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) All my train PSUs are 10V AC, but are rectified and regulated to a nice 9V internally. (17 years ago, 11-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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Usually AC will either say AC or have a ~ symbol. DC will either say DC or have a symbol that looks like = or _-_ -Rob A> (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) The AT&T 9v AC 800mA supply sounds just about right. (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) _ALWAYS_ assume DC on an actual power adapter (at least in the US). Most AC devices will just use a simple cord, like you'd find on a portable stereo. A handful of devices will need AC power in a non-standard voltage and will use DC-like power (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) The one used for the RCX may be, but the NXT power supply is sold as a different item, and is listed as a 10VAC adapter vs. the 9VAC adapters used by trains and various other systems. Not that it matters unless you also buy the Li-Ion battery (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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| | Re: Sign of center pin on power adaptor
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(...) I now have a Dynamic Instruments 16VAC 375mA, AT&T AC 9V 800mA, and a Black & Decker 9V 200mA from a Dust Buster but it does not say if it is DC or AC, I am assuming AC. Which one should I use? I am hoping the AT&T but the 800mA makes me a (...) (17 years ago, 10-Jul-07, to lugnet.robotics.rcx)
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