 | | RE: Speed of RCX interpreting bytecodes: slow
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(...) Check out pbForth too! I will get around to doing some basic loop timing if you ask me nicely and tell me what kinds of test would be useful to do! pbForth is ready to run right out of the box, there is no compiler to mess with, and it's fun (...) (26 years ago, 1-Jan-00, to lugnet.robotics.rcx)
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| | Speed of RCX interpreting bytecodes: slow
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While working on the barcode scanner I decided to see just how fast the RCX could loop. A simple NQC program can do about 1000 counter loop iterations in about 100 ticks, or 1 iteration/ms. This is shockingly slow. The native H8/329 is clocked at (...) (26 years ago, 1-Jan-00, to lugnet.robotics.rcx)
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| | Re: USB->Serial Converts and IR Tower
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(...) The Keyspan PDA adaptor (www.keyspan.com) works just fine with an apple and/or the VirtualPC on the apple. Dw (26 years ago, 31-Dec-99, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: USB->Serial Converts and IR Tower
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Ram Meenakshisundaram <rmeenaks@olf.com> wrote in message news:386CCBC8.270472...olf.com... (...) Entrega's hubs with serial ports or the U1S9 work great IF you download the latest drivers (just got mine working this morning!) from Entrega. Barbara (...) (26 years ago, 31-Dec-99, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: USB->Serial Converts and IR Tower
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(...) 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 (...) (26 years ago, 31-Dec-99, to lugnet.robotics.rcx)
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| | Re: USB->Serial Converts and IR Tower
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Somewhere on the Mindstorms site, I found a reference to the Peracom adapter. I have not tried it, but I did buy a Belkin USB Hub with a serial port and I know that the Belkin doesn't work. Scott (26 years ago, 31-Dec-99, to lugnet.robotics.rcx)
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| | Connecting Via a USB Hub
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I have a USB Hub with an RS-232 port. When I connect the IR Transmitter to this port, the firmware downloads fine. If I have a program with a single RCX command block, it's fine too. If I have more than one command block, I get a download error. Any (...) (26 years ago, 30-Dec-99, to lugnet.robotics.rcx)
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| | USB->Serial Converts and IR Tower
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Hi, I only have one serial port on my PC and it is currently hooked up to an external modem (PC slots are precious to me). So, I was planning on using an USB->Serial converter. Can anyone recommend a brand that has been proven to work with the IR (...) (26 years ago, 31-Dec-99, to lugnet.robotics, lugnet.robotics.rcx)
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| | barcode reader for RCX (was: how does a bar code reader work?)
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(...) Well, I tried this, and it's hopeless. The RCX can't poll the sensor nearly fast enough, and even if it could you'd need a lens to focus the sensor better. (...) Instead of using my idea, I took the suggestion of someone else and just used a (...) (26 years ago, 30-Dec-99, to lugnet.robotics, lugnet.trains, lugnet.robotics.rcx)
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| | Re: differences between 9719 and 9747?
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Hi, Note that if you get the RIS 1.0 -> RIS 1.5 upgrade (costs $25.00, but free if you bought your RIS 1.0 after August), it includes the 60 missing pieces, additional CD, manuals, and test pads. Plus the RIS 1.0 has the AC adapter while the RIS 1.5 (...) (26 years ago, 30-Dec-99, to lugnet.robotics.rcx)
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| | Re: differences between 9719 and 9747?
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(...) Here are the differences in parts. They are alse some differences in manual and software, but I don't know them. New parts in set 9747 (Mindstorms 1.5), not in set 9719 (Mindstorms 1.0) Count Part # Part Color 4 3794 1x 2 plate, 1 stud Gray (...) (26 years ago, 30-Dec-99, to lugnet.robotics.rcx)
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| | Re: R2D2 and RCX : the LEGO official stuff is online
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Hi, I've created PDF files for building instructions for - R2D2 / RCX - Battle Droid from legomindstorms.com html files, but I don't know if I can legally put them available for everybody on my web site ? Any ideas ? (26 years ago, 24-Dec-99, to lugnet.robotics.rcx)
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| | R2D2 and RCX : the LEGO official stuff is online
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Look at (URL) , LEGO has posted detailled build instructions and programs to do this, certainly better I did at (URL) ! Christophe (26 years ago, 24-Dec-99, to lugnet.robotics.rcx)
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| | Re: FSMs, coding techniques and other goodies
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As we say in Vermont: Ayup! Finite State Machine(s) (26 years ago, 24-Dec-99, to lugnet.robotics.rcx)
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| | Re: FSMs, coding techniques and other goodies
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OK I'm guessing, but does FSM = finite state machine ? (26 years ago, 23-Dec-99, to lugnet.robotics.rcx)
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| | Re: R2D2 (DDK) with RCX : 2nd Look
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Hi Everybody, The R2D2 beta2 version is online, with : - two touch sensors - one light sensor in its turning head Please forget the last URL, go directly to : (URL) : (URL) a nice day/night, - Christophe - (26 years ago, 23-Dec-99, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: RCX onboard timer and motor pulsing
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(...) The timers run at 1/10 sec, but granularity for "waiting" a task is 1/100 sec. The PWM used for motor output has granularity of 1/1000 sec. Dave Baum p.s. I hope it wasn't my book that stated 1/10 and 1/1000 - if so could you e-mail me the (...) (26 years ago, 23-Dec-99, to lugnet.robotics.rcx, lugnet.trains)
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| | Mindstorms spirit.ocx programming = RCX ASM coding?
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I haven't looked at programming the RCX with Visual Basic or other MS Win languages via the spirit.ocx control, but someone (sorry -- I'm terrible with remembering names!) at the NELUG meeting asked me why people seem to like NQC when they could be (...) (26 years ago, 23-Dec-99, to lugnet.robotics, lugnet.robotics.rcx, lugnet.loc.us.ma.bos)
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| | Re: RCX onboard timer and motor pulsing
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(...) It is 1/10 of a second for the timers. However, in case you don't know. The RCX's Motor ports PULSE their signal. They always put out the same voltage. At level 8 it's 100% at level 4 it's an even on/off. I use it for my trains and it's great. (...) (26 years ago, 23-Dec-99, to lugnet.robotics.rcx, lugnet.trains)
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| | RCX onboard timer and motor pulsing
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Hi All, Since I am and train head I don't read .RCX (this topic might be well exhausted) I just read thru a third party book on the RCX and in one place he said the timer granularity in 1/10 sec and in another it was 1/1000 sec. My goal is to pulse (...) (26 years ago, 23-Dec-99, to lugnet.robotics.rcx, lugnet.trains)
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