RCX programmable brick : Search Results: range USB IR long Tower


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		no long range IR from laptop says Lego
Does the Lego USB IR tower, when set to long range, sometimes draw more than the 500mA allowed? Or do laptops generally not reliably supply 500mA? Or are we facing some deeper analog issue here, like not ramping up to 500mA from less mA fast enough (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)

range, usb, ir, long, tower
(score: 9.743)

		Re: no long range IR from laptop says Lego
Use a powered USB hub with the laptop. The power required for the USB IR Tower will come from the powered hub, rather than the laptop. - Rob (...) (22 years ago, 15-Feb-03, to lugnet.robotics.rcx)

range, usb, ir, long, tower
(score: 7.461)

		Re: no long range IR from laptop says Lego
Kindly offline I am informed: yes indeed, some laptop designs have been seen to support less than half of the specified 500mA max load for USB bus power. I wonder how many mA the USB IR tower does need. Pat LaVarre (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)

range, usb, ir, long, tower
(score: 7.439)

		How about LegOS & IR "long range"?
Well. It's a bit strange that under LegOS you "must" work only in "near"/"short range" mode. So I've modified my kernel to work always in "far" or "long range" mode (that works with near too)... Now I'm able to upload kernel and .lx to my RCX placed (...) (25 years ago, 13-Feb-00, to lugnet.robotics.rcx.legos)

range, ir, long, tower
(score: 6.777)

		Re: RIS 1.0 -> 1.5 -> 2.0 upgrade questions
(...) To be precise, there is one additional part, it's an additional long clear thick optical fiber. I think it's intended to connect some VLL bricks to the USB tower. The Spybotics contain similar but shorter optical fibers. I also read that the (...) (22 years ago, 5-Nov-02, to lugnet.robotics.rcx)

range, usb, ir, long, tower
(score: 6.716)

		Re: no long range IR from laptop says Lego
(...) Its USB descriptors say there are two configurations with 100mA (I think these are for low and medium power), and two that require 500mA (high power mode). The LEGO USB Tower Interface Reference doesn't go into more details. Jürgen (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)

range, usb, ir, long, tower
(score: 6.657)

		learning RoboLab (long)
The following learning resources apply to Lego Dacta's RoboLab "Mindstorms for Schools" programming software, version 2.5 where indicated, otherwise, earlier versions: 1. Dacta RoboLab Teacher's Guides Printed paper books. Detailed instructions for (...) (23 years ago, 8-Dec-01, to lugnet.robotics.rcx.robolab, lugnet.edu, lugnet.dacta, lugnet.books, lugnet.robotics.scout, lugnet.robotics.vll)

usb, ir, long, tower
(score: 6.321)

		Re: USB IR tower support in Lunix
(...) Good! (...) I posted via the web-interface, I guess one needs a javascript browser for that. I like the navigation of the webinterface within threads. (...) Ah, very good! Does it also support the high-speed mode ? (...) Sounds like a good (...) (22 years ago, 2-Jan-03, to lugnet.robotics.rcx.legos)

usb, ir, long, tower
(score: 6.025)

		RE: Long range IR mode.
(...) The >R and R> words are used as little helpers. The put (or get) the top element of the data stack to the return stack. As long as you dont fiddle with the return stack between uses, they are a great way to do this. The alternative way to code (...) (25 years ago, 11-Nov-99, to lugnet.robotics.rcx.pbforth)

range, ir, long, tower
(score: 5.998)

		Re: dll problems
(...) I had this same problem yesterday when I had the IR tower in long range mode and had the RCX quite close to the tower. If its not in long range mode sometimes I have to turn the RCX off and then turn it back on again before dll will (...) (25 years ago, 8-Dec-99, to lugnet.robotics.rcx.legos)

range, ir, long, tower
(score: 5.974)

		Re: Duplex Comms with RCX
(...) I have given this some thought in the past, although I haven't had the (significant!) time that it would take to try this out. I think the best hope for any kind of two-way communication protocol between the PC and one or more RCXes is to use (...) (24 years ago, 27-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)

range, ir, long, tower
(score: 5.851)

		Re: USB vs Serial Tower Response Time
Wow, that answers a lot of questions, all but one: why is the USB's 'long range' shorter than the Serial's distance? Was my speculation of the available power true? (500mA vs 9v ... not sure if these two measurements can be compared) (...) <snipped> (...) (21 years ago, 21-Aug-03, to lugnet.robotics.rcx)

range, usb, long, tower
(score: 5.836)

		USB Tower range
Hi, I recently bought the RCX2.0 and I am a little disappointed at the range for the USB tower. Though configured to be at long range I doubt I can implement a range greater then 5 or 6 feet. Is this normal.? Am I missing something.? Paul Reedman (21 years ago, 7-Jan-04, to lugnet.robotics.rcx)

range, usb, long, tower
(score: 5.770)

		Re: USB->Serial Converts and IR Tower
(...) Wow. I am suprised Belkin doesnt work. Their products are really good. I never heard of Peracom. I know that Lego claims that "it worked for some users", but I wanted to stick with brand-names that I was familar with. Does anyone know if Lego (...) (25 years ago, 31-Dec-99, to lugnet.robotics.rcx)

usb, ir, tower
(score: 5.709)

		Re: RCX and IR Range Characteristics?
hi Ralph, I think I'm lucky. I just did some experiments with a modified IR-tower. The modifications were: the "keep alive trick" from John Barnes and my own trick to add a few more diodes to get rid of the 9V battery. Without a batttery in the (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx)

range, ir, long, tower
(score: 5.639)

		Custom Firmware, IR Problems, and Dead RCXs (long)
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, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)

range, ir, long, tower
(score: 5.618)

		Re: new RoboLab 2.5 compatible with old serial IR tower & RCX 1.0
1) If you have a serial tower, there is no reason I can think of to purchase the USB tower. If you use a USB tower, then you will need the USB support that Robolab 2.5 provides. 2) The hardware differences between the 1.0, 1.5, and 2.0 bricks are (...) (23 years ago, 27-Sep-01, to lugnet.robotics.rcx.robolab)

usb, ir, long, tower
(score: 5.604)

		Trouble loading programs
Hi all, I'm new to legos and am having some problems loading programs. I have searched the news pages for my particular error and there are some that are close but not exactly. I hope someone can help because I am currently "dead in the water". Here (...) (23 years ago, 19-May-01, to lugnet.robotics.rcx.legos)

range, ir, long, tower
(score: 5.602)

		Re: transfer data failed
I use 0.2.5 in windows (djgpp), and can't get by without using the slow download option (-s). If you have lighting problems, perhaps flipping the little switch on the IR tower will help. When I download stuff at school, it helps to have it set to (...) (23 years ago, 8-Aug-01, to lugnet.robotics.rcx.legos)

range, ir, long, tower
(score: 5.554)

		Re: RIS 2.0 - when, where, what??
(...) Spring 2001. They have to sell of the 1.5's... From what I remember reading the 2.0 will have. USB IR Tower The power adapter port is back It will look the same as the 1.0 but will have the back raised bit (Near the power adapter port) lowered (...) (24 years ago, 25-Oct-00, to lugnet.robotics.rcx)

usb, ir, tower
(score: 5.545)

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