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 Robotics / RCX / 1450 (-20)
  lego software won't download
 
My lego software (as supplied with RIS 1.5) won't download programs to my RCX. Firmware downloads, settings can be changed, but programs fail. My programs fail, lego's own programs fail. They fail with the original firmware and with teh newer (...) (24 years ago, 7-Oct-01, to lugnet.robotics.rcx)
 
  Re: RcxCC & Fair Play
 
How about an unpronouncable symbol formerly known as RCXcc? Oh wait, Prince might send his lawyers... What about: SmartBrick VB (Visual Brick)...<snicker, snicker> PbrickCC Rccx rNQCx RcCcX NQC^3 ...I've got more...gimme time -Rob (24 years ago, 5-Oct-01, to lugnet.robotics.rcx)
 
  RcxCC & Fair Play
 
Phenominal cosmic power. Itty bitty living space. I get to maintain RcxCC and deal with everything that comes with it - namely the attention of TLC lawyers. I got a nice e-mail today from the fair play folks asking me to change it to something that (...) (24 years ago, 5-Oct-01, to lugnet.robotics.rcx)
 
  Update to Business 2.0 Article (was: LegOS forced to use another name?)
 
This update to the article discussed in this thread is taken from the November 2001 issue of Business 2.0. It isn't on (URL) so I thought I would run it through OCR and post it here for everyone to see. LUGNET gets a mention (but not a URL), and the (...) (24 years ago, 5-Oct-01, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx, lugnet.general, lugnet.mediawatch)
 
  GP2D12 IR sensor RCX active sensor interface?
 
I recently acquired several Sharp GP2D12 IR distance sensors that I want to attach to the RCX for use in the robotics course I'm teaching at Vassar College. I found an RCX interface circuit for this sensor at (URL) I go ahead and build it, I though (...) (24 years ago, 5-Oct-01, to lugnet.robotics.rcx)
 
  Re: Lego Robotics Invention System Storage Solution
 
OOooppss.. Sorry Ed, fixed the link.... Try Again?? Terry> (...) (24 years ago, 4-Oct-01, to lugnet.robotics.rcx)
 
  Re: Lego Robotics Invention System Storage Solution
 
(...) Hi Terry - Thanks for that! However - the images from the page do not want to load or perhaps are not linked correctly? Regards, Ed Cox. (...) (24 years ago, 4-Oct-01, to lugnet.robotics.rcx)
 
  Lego Robotics Invention System Storage Solution
 
Take a look at: (URL) a look at this low-cost Lego RIS packaging solution: After looking over and trying several methods of packaging the Lego RIS for use in schools and for easy transportation, I found an inexpensive ($7.96 at WalMart) tackle box (...) (24 years ago, 4-Oct-01, to lugnet.robotics.rcx)
 
  Re: Use laptops IrDA
 
(...) (URL) may be of interest to you on this topic. (24 years ago, 2-Oct-01, to lugnet.robotics.rcx.java, lugnet.robotics.rcx)
 
  Use laptops IrDA
 
Hi all, I want to make a program on my laptop so that I can use it (the laptop that is) as a remote control to give orders to my Mindstorm robot, just simple things like turn left/right etc. I'm going to use Java on my laptop, Lejos on the RCX and (...) (24 years ago, 1-Oct-01, to lugnet.robotics.rcx.java, lugnet.robotics.rcx)
 
  RFC: Mux schematic viability
 
If anyone with electronics experience has a moment or two, I would be very grateful if they could take a look at (URL) This is a design based on the 4017/4066 multiplexer on Michael Gasperi's website except that I want to use BAT85 diodes rather (...) (24 years ago, 1-Oct-01, to lugnet.robotics.rcx)
 
  Re: Sending ir packets
 
(...) Here ya go: Remember start bit (sometimes called 2 stop bit mode) 55 00 D1 ~D1...Dn ~Dn C ~C Add all the normal D parts in a single Byte for Chksum. Code chunk for example ... unsigned char MuxStr[] ={0x55,0xf7,0x08,0x0...xf8,0x07}; count = 7; (...) (24 years ago, 29-Sep-01, to lugnet.robotics.rcx)
 
  Re: Test
 
Hi Paul, (...) Seen from my side: nothing! I just tried, and it went through as it should! Regards, Martin (24 years ago, 29-Sep-01, to lugnet.robotics.rcx)
 
  Re: Sending ir packets
 
Check the source code for NQC (in rcx/RCX_Link.cpp), or even use it as your underlying comms library. You may spot something Dave does that you don't.. Phil. (...) (24 years ago, 29-Sep-01, to lugnet.robotics.rcx)
 
  Test
 
I can't post anything to the Java news group. What's going on? (24 years ago, 29-Sep-01, to lugnet.robotics.rcx)
 
  Re: Psion 5mx firmware downloader
 
(...) (snip account of fast download - thanks) (...) An electronics manufacturer. Specifically, in this case, manufacturer of a pda with a half-vga screen, a keyboard, built-in spreadsheet, word processing, email, databases etc.which is technically (...) (24 years ago, 29-Sep-01, to lugnet.robotics.rcx)
 
  Re: Psion 5mx firmware downloader
 
(...) As far as I know, the fast downloader is not documented except as C code. There may also have been some posts to this newsgroup or the legos one back when that code was written. I forget whether Marcus and I discussed this more by e-mail or by (...) (24 years ago, 29-Sep-01, to lugnet.robotics.rcx)
 
  Psion 5mx firmware downloader
 
I've written a firmware downloader that runs on a Psion 5mx (and probably an older 5, but I haven't tested it). I should note this uses the IR tower connected to teh cable serial port (via lego's cable, psion's cable and a null modem adaptor, (...) (24 years ago, 29-Sep-01, to lugnet.robotics.rcx)
 
  Re: RCX sensor interfaces - diodes
 
I think the real point here is that it is usually necessary to incorporate a bridge network of six diodes to interface to the RCX sensor inputs. The signalling current must pass through at least two series diodes to get to the RCX terminals - a (...) (24 years ago, 28-Sep-01, to lugnet.robotics.rcx)
 
  Re: RCX sensor interfaces - diodes
 
The main advantage of the BAT85 is the lower voltage drop (about 0.3 Volt against 0.7 Volt for the 1N4148). (...) (24 years ago, 28-Sep-01, to lugnet.robotics.rcx)


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