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 Robotics / RCX / 1975 (-20)
  Re: no long range IR from laptop says Lego
 
(...) No idea. I think these values are used for accounting, to ensure that all devices together don't exceed available power. But I don't know how well this is implemented. (...) Linux makes them available in readable form in /proc/bus/usb/devices (...) (22 years ago, 14-Feb-03, to lugnet.robotics.rcx)
 
  How could I tell if I'd cooked the motor controllers ?
 
We had an informal Robo-Sumo thing at my work place tonight and I'm wondering if I killed my RCX. My 'bot had two gearmotors on A and two more on C to drive the wheels. Could they have drawn enough current when the 'bot was stalled to harm the RCX ? (...) (22 years ago, 14-Feb-03, to lugnet.robotics.rcx)
 
  Program for a "pullback motor car"
 
Hello, I was too sure that I could manage to program this small and simple robot in Mindstorm 2.0, but have to stop it beacuse it got too complicated. Now I'm reading "Learn yourself C in 21 days" and the "NQC guide" and "NQC Tutorial", hope I can (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
 
  Re: no long range IR from laptop says Lego
 
(...) Fascinating stuff, thanks again. In particular, I didn't know Anyone had persuaded Windows to respond intelligently to Usb Configuration's of variable power. Anybody know if these descriptors already appear on the web somewhere? Else please (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
 
  Interactive C and USB tower ?
 
Does anyone knows a way to use IC4 with an USB tower ? TIA Philo www.philohome.com (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
 
  Re: RCX assembly instructions of Lego quality
 
Don’t forget Nostarch Press! They have 2 great books that are definitely worth looking at including Jin Sato's LEGO® MINDSTORMS The Master's Technique. I had the privilege of building his robotic dog last night and really had a lot of fun with it. (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
 
  BricxCC release 3.3.7.2
 
Version 3.3.7.2 of BricxCC is now available. It fixes a bug in the Brick Piano (introduced in the previous version) which made it impossible to save the music to a file or to the clipboard. Music saved from the Brick Piano can now be in NQC, (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
 
  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)
 
  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)
 
  Re: RCX assembly instructions of Lego quality
 
(...) Hi Pat, Syngress has two books out dedicated to RCX models. (URL) One of the Robots in the Ultimate Builder's book is mine. It is a two legged walker. The newsgroup (URL) is dedicated to building instructions. From there you can get to the (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
 
  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)
 
  Re: usb to ris 1.x rcx ir how
 
(...) Contributing evidence includes the Lego claim that the entire new kit can be made to work in Win XP: (URL) happy to announce that Robotics Invention System 2.0 will install and run on Windows XP, if special installation instructions are (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
 
  Re: usb to ris 1.x rcx ir how
 
(...) Ah, slowly I clue in, thanks, now I have found: Lego Mindstorms(TM) 2.0 Upgrade Kit (3805) (URL) to itself that page appears labelled with only "2.0 Upgrade Kit". (...) Thanks for saying. Back at that link, I see only Win 98/ME mentioned, no (...) (22 years ago, 11-Feb-03, to lugnet.robotics.rcx)
 
  Re: reading music thru an RCX
 
(...) Thanks for the news, I'll look forward to that release. (...) As yet this I am unable to evaluate. I wonder if I've grabbed the right stuff to convey to my RCX? (URL) Two releases, 2003-01-15: (URL) 2002-12-05: (URL) tried 2003-01-15. I see (...) (22 years ago, 10-Feb-03, to lugnet.robotics.rcx)
 
  Re: reading music thru an RCX
 
(...) Something quite like what you describe is the Brick Piano in BricxCC. Unfortunately, in the current release there is a nasty bug that I just added which makes the Brick Piano mostly useless at the moment. It is fixed in the next release (which (...) (22 years ago, 10-Feb-03, to lugnet.robotics.rcx)
 
  Re: reading music thru an RCX
 
(...) Without being able to answer the question, I can add that relevant Unicode may include: (URL) bytes) u1D11A five-line staff u1D11E G clef u1D112 F clef u1D13B whole rest u1D13C half rest u1D13D quarter rest u1D13E eighth rest u1D15D whole note (...) (22 years ago, 10-Feb-03, to lugnet.robotics.rcx)
 
  reading music thru an RCX
 
Anybody already write code to play notes thru the RCX as they are chosen, keep a history of the notes, replay the assembled tune, etc.? --- I think I mean to be asking for a public domain GUI. Courtesy l.r.r. recently, I've already got .java code (...) (22 years ago, 10-Feb-03, to lugnet.robotics.rcx)
 
  Re: spare parts where
 
(...) Hi Pat, The hassle-free approaches: www.bricklink.com, www.ebay.com, www.auctionbrick.com and what Lego offers on the www.lego.com website (look under accesories). If you are an educator, find out about the Lego Dacta product line (you can (...) (22 years ago, 9-Feb-03, to lugnet.robotics.rcx)
 
  Re: usb to ris 1.x rcx ir how
 
1. Hardware upgrade to USB IR tower: Dacta is Lego's educational division. For some reason, in the US it is known as Pitsco. The Pitsco link you have found is the only way I know of getting a USB IR tower on its own. It does not need batteries. 2. (...) (22 years ago, 8-Feb-03, to lugnet.robotics.rcx)
 
  RCX assembly instructions of Lego quality
 
Where do I go to find more RCX assembly instructions of Lego quality? For free or for money? I ask because I know a six year old who can now confidently assemble a robot from the Lego instructions. I think because those instructions show and count (...) (22 years ago, 8-Feb-03, to lugnet.robotics.rcx)


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