 | | Re: Any experience with measuring rotations?
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(...) "It's foolproof!" (...) This sounds like a good idea. I'm thinking I'm going to have to work out a sequence of more than just two shades, but that's what weekends are for, right? So, if I could make of sequence of colors that have increasing (...) (18 years ago, 20-Jan-07, to lugnet.robotics.nxt)
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| | Re: Any experience with measuring rotations?
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(...) Easy. A light sensor. Point the sensor at a disk that's shaded from white to black. I've used that to detect the distance a robot is from a wall (wall following), using just a black & a white dot (1x1) which are moved in front of the sensor. (...) (18 years ago, 20-Jan-07, to lugnet.robotics.nxt)
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| | Any experience with measuring rotations?
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Hi all, I am working on a "project" where I want to measure some reasonably small rotations, things on the order of +/- 10 degrees or less. Just to make it hard, the force acting on the thing being rotated is small, like, completely hypothetically, (...) (18 years ago, 20-Jan-07, to lugnet.robotics.nxt)
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| | Re: Like A Rock Crawler Hauler
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(...) Very cool Steve... I can also atest the turn radius will stink since I did the same mod to the red tow truck set last year. You said you are using old style light sensors...Interfacing them to the NXT with the converter cables I assume? B (18 years ago, 20-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Nothing, it restarts back to blank screen, samba clicking mode. (...) Same thing. I also tried pulling the batteries for a few seconds. Telling USB Probe to refresh. 100 different combinations of resetting with and without usb plugged in, (...) (18 years ago, 20-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Tony, thanks for the work so far. What happens if, after the firmware is loaded you do any of the following: 1. Reset the NXT (press reset for less than 1 second) 2. Unplug the USB cable, wait 5 seconds, and plug it back in again (...) Here's (...) (18 years ago, 20-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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Here are my notes on what I've been able to accomplish so far in OSX on my MacBookPro. Loading pbLua firmware on nxt running standard firmware: 1. plugin usb 2. rename nxt-lua.bin to nxt-lua.rfw 3. open NXT-G, goto Tools -> Update NXT Firmware. (...) (18 years ago, 20-Jan-07, to lugnet.robotics.nxt)
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| | Re: Apology
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(...) Uh, Dave. Aren't you an american? Last time I checked, Canada was on the top of the north American continent :^P Kevin (18 years ago, 19-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Ralph, I can wait for API-docs 8-) In the meantime I try to find out how USB-communication (with libusb and terminalemulation) can work on OSX (10.4.x) and Linux. Is the NXT acting like an USB-Modem (asynchronous communication) What are the (...) (18 years ago, 19-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) I think pbLua is actually running. The problem is that the signon screen does not get displayed until the USB connection is made. Which is why I need to find out how USB enumeration happens on a Mac. The pbLua firmware makes the NXT look like (...) (18 years ago, 19-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) I'm still building and finalizing the API. I should probably start posting some questions on this forum... Eventually I'd like to get the API and the Lua table out there but I need to get docs set up. If you can help with install instructions (...) (18 years ago, 19-Jan-07, to lugnet.robotics.nxt)
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| | Like A Rock Crawler Hauler
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We've been playing around with Rock Crawlers for a while, so I finally put up a web page with a bunch of pictures and descriptions on it. (URL) addition to my Rock Crawler (and a link to John's trucks), about half way down the page, there are (...) (18 years ago, 19-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) It sounds like you DID get it loaded right here. At this point, I believe you need to unplug the NXT from the USB, then reconnect it. (...) You need to reset the NXT. Press and hold the reset button for 5 seconds. Then, you should be able to (...) (18 years ago, 19-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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What is the method to load the pbLua firmware, preferably in OS X? It's a .bin file so NXT-G doesn't recognize it. I tried renaming it to a .rfw file and it succeeds but then gets stuck in samba click mode. Then I tried libnxt's fwflash, holding (...) (18 years ago, 19-Jan-07, to lugnet.robotics.nxt)
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| | Re: Apology
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(...) You know, if this was an international forum, you'd at least expect the second letter of Jürgen's name to print properly... Jason R (18 years ago, 18-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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Hi Ralph, it's great to see this. I'm eager to have a play. Apologies if I've been part of the bother with sending you emails. In releasing details of your toolset, are you revealing your source code too? Both would be an enormous help to people (...) (18 years ago, 18-Jan-07, to lugnet.robotics.nxt)
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| | Re: Apology
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(...) Double A-Hem! Dave K (18 years ago, 18-Jan-07, to lugnet.robotics.nxt)
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| | Re: Apology
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(...) Ahem. Jürgen (18 years ago, 18-Jan-07, to lugnet.robotics.nxt)
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| | Re: Apology
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(...) Please, everybody just back away from the irony. We can all see how this happened - it's primarily an American forum and some people were just making their first attempts at sarcasm. If we can all walk away now we promise never to bring this (...) (18 years ago, 18-Jan-07, to lugnet.robotics.nxt)
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| | Re: Apology
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(...) John, Thank you very much. I think this is not only appreciated by me, but also by the community. Nobody comes here because they want to start a fight, or watch a fight. We come here to play & forget the stress of everyday life. This goes a (...) (18 years ago, 18-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Apology
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I would like to extend my sincere apologies to Steve H for posting a software comparison page similar to his and announcing it here. I would also like to apologize to Ralph H for messing up his thread by mentioning the page there. It was wrong for (...) (18 years ago, 18-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Hi Ralph, I have some more questions about pbLua... Is the NXT-Lua-API public available ? My idea is to use your pbLua-functions at my PC running Lua-Interpreter, replaceing low level stuff with own functions... This allows me to write and (...) (18 years ago, 17-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Greetings, Steve. I am glad to see all this info in one place. Next time you update your table, you could replace the ??? in the Lejos NXJ column, floating point row, with a YES. No doubt about it. The Java Math library was even implemented in (...) (18 years ago, 17-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Ralph, thanx for the great work independently from the trouble at the list, I have some questions: What is needed to communicate with the NXT at PC side (Linux or OSX) Terminalemulation ? How are files transfered to the NXT ? XModem, ZModem, (...) (18 years ago, 17-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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Finally! I can put an actual link to your project on the sidebar! (18 years ago, 17-Jan-07, to lugnet.robotics.nxt, FTX)
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| | Re: Text Based Programming for NXT - pbLua is Available
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John - Your accusation that Steve wouldn't correct facts is not true...your debate (held on a private forum) with him was over a row in the table that contained his opinions - and Steve always represented them as HIS opinions. ***...*** To the rest (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt, FTX)
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| | Re: Programming for NXT
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(...) I've spent a great deal of time talking with developers and updating the page, so I believe all the facts are correct. I apologize if I gave you the impression I was not going to correct factual errors. Steve (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Bryan, you should be more careful about making unfounded libelous accusations. I did not copy Steve's page. I gathered the data independently. I began the project on my own in response to a query in the lugnet.robotics newsgroup. Were portions (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Comparing software
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I get a lot of people asking what the "best" software is for the NXT. Of course, this is a complex question that depends on the user, and intended goal of the program. So, for the last several days, members of the Mindstorms Community Partners (MCP) (...) (18 years ago, 16-Jan-07, to lugnet.robotics.rcx, lugnet.robotics.nxt, lugnet.robotics)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) Maybe we should use the word "coincidence" that both parties were working on similar projects at the same time. Stranger things have happened you know. Lightup SW figs for instance. Who would have thought that two entities would invent the (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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In lugnet.robotics.nxt, John Hansen wrote: <snip> (...) <snip> (...) All - it is appropriate to note that the table referred to above was created by Steve Hassenplug. It was reformatted to put NBC and NXC first and recolored. Oh, and the column (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) That's a very nice page, John. I'm glad you at least went through the trouble of changing the background, before you claimed to have done the work and posted it. Here's the page I've been working on for several days, before John copied it. (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) No need to apologize, Ralph. And I definitely didn't mean to hijack your thread. Unfortunately some folks hear "assembly" and get a completely mistaken impression about NBC. Anyone who has had a look at Ross Crawford's NBC Tuturial knows how (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: What do these macros do?
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(...) Lots of very cool stuff deleted. Sorry I missed your original message, Jeff. You can write to both the Normal and Popup screen memory and toggle back and forth between which one gets displayed. This code flips between the two buffers for 10 (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: Electromagnetic device
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Thanks everybody for the explanations! Everything start to make sense now. I understand that a resitor will limit only voltage across the circuit, but not current, this is very clear also. So, i will look for a small electromagnet, (9 volts) because (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) not simple text-based languages for the NXT. Sorry for any confusion. Ralph (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: Electromagnetic device
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Yes, you can use an electromagnet with the RCX. Depends on what you want to do with it, but it should work. The device from a disk drive might be a 12 volt device, or 5. The RCX puts out around 8-9, so either way the device isn't drawing the correct (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) This is a fantastic development! Not too long ago, I was involved in Sony PSP hacking. Although the GCC toolchain was relatively easy to build, and lots of sample code was around for writing C++ programs for the PSP, the rate of new software (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt, FTX)
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| | Re: Text Based Programming for NXT - pbLua is Available
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(...) I am very excited about the availability of pbLua. It looks extremely cool. And fast. BricxCC already has built-in support for Lua syntax highlighting. You can also have BricxCC claim the .lua file extension via the Preferences dialog if you (...) (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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| | Re: ReMix of LEGO NXT Starter Robot
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(...) Yes... (...) Unfortunately no, the digital motor port signals are input only (they are buffered by a Schmitt trigger). Philo (18 years ago, 16-Jan-07, to lugnet.robotics.nxt)
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