 | | Re: MOC "Big Show" work in progress
|
|
(...) E' davvero seccante dover ridimensionare le immagini per poterle vedere a tutto schermo... Luca (20 years ago, 21-May-06, to lugnet.org.it.itlug)
|
| |
| | External power supply for NXT
|
|
Hi all, You'll find (URL) here> detailed building instructions for a replacement battery plate that adds an external power jack to the NXT. (URL) Enjoy, Philo (20 years ago, 21-May-06, to lugnet.robotics, FTX)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
Hello Brian, (...) That's easy to do in NBC, and not hard with NXT-G: to shut off the US sensor, just "use" another sensor type on the same port. Here is a sample program that switches the US sensor on/off with NXT enter button. (URL) If the sensor (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | New Seaplane set in old Legoland scale
|
|
Looks pretty cool. (URL) pieces. It appears to use the new click hinge sloped roof piece instead of the old finger hinge peice, but other than that it look very nice. -Mike Petrucelli (20 years ago, 21-May-06, to lugnet.town)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
I've heard of one possible answer, though don't know if it is feasible on the NXT. If the robot software sends timed pings, regardless of time of flight, they will be returned with the same delay between them. So if you send two pings 73 msecs (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
(...) I was the one that mentioned that I couldn't find a way from the SW I have to turn the US sensor off. That said, I don't think it's time yet to worry about intractable problems: A hundred of us or so have been playing with this stuff for a (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
(...) Wow! That's a lot lower than I'd have expected - at that frequency there is a good risk of harmonics from normal sound interfering with it. (...) Right - 350 meters per second is pretty slow by computer standards. (...) (Not to mention things (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
(...) The device operates at 40kHz, the transmit and receive piezo devices are only resonant at that frequency. Even though the measurement period is short (time from transmit to time to receive) it is necessary to wait quite a while for the sound (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | 10152 cerco...
|
|
ciao a tutti cerco il (URL) o al limite MIB ad un prezzo ragionevole. ciao, Matteo. (20 years ago, 21-May-06, to lugnet.org.it.itlug.market)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
(...) The 'Aloha' protocol was the predecessor of this. (...) Someone earlier told us that the thing runs all the time and can't even be shut off. That being the case, I think we're pretty much doomed. (...) Yes - but the relatively low frequency at (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
(...) How about a single computer that was Bluetooth accessable. The server could act as a "lockable" resource that a NXT could acquire prior to doing the US detection. Then the NXTs don't need to know about each other, just the main server (and it (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | has anyone seen the batcave or the catwoman set in .au?
|
|
Has anyone seen either the batcase or the catwoman set here in australia yet? If so, where? (20 years ago, 21-May-06, to lugnet.loc.au)
|
| |
| | nuovi set.
|
|
zitti zitti , quatti quatti stanno uscendo i nuovi set : (URL) (20 years ago, 21-May-06, to lugnet.org.it.itlug)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
The problem here is the management of a single shared resource, i.e. the air through which the ultrasonic signals travel. The lack of a Bluetooth broadcast mechanism makes the implementation of a conventional resource locking system difficult, but (...) (20 years ago, 21-May-06, to lugnet.robotics, FTX)
|
| |
| | Re: Ultrasonic sensor interactions
|
|
(...) This is a great idea except for one very important item: there is no such thing as a broadcast message (ie: a message sent to everyone) using Bluetooth. So for any such system to work, each robot has to know about every other robot, and send (...) (20 years ago, 21-May-06, to lugnet.robotics)
|
| |
| | Far North Bricks Unsorted Lots for sale.
|
|
I have two unsorted lots available in my store - see extended description in my store for details of most of what is included in each lot. - brief descriptions are as follows: Trains: 12v/4.5v train elements, includes some points and a crossover. (...) (20 years ago, 21-May-06, to lugnet.market.buy-sell-trade)
|
| |
| | Re: Milk International Children's Festival of the Arts
|
|
(...) Wow! Amazing what you can do with (mostly) 2x4 bricks! (...) Except if you follow Aussie Rules football, which is played on an oval ground ;) (...) I think this pic shows them best (URL) (20 years ago, 21-May-06, to lugnet.org.ca.rtltoronto)
|
| |
| | Milk International Children's Festival of the Arts
|
|
The Milk International Children's Festival of the Arts starts tomorrow and runs till May 28th. (URL) couple months ago a group of us were asked by LEGO Canada and the Toronto Harbourfront Centre if we could do some building for the Lego tent at the (...) (20 years ago, 21-May-06, to lugnet.org.ca.rtltoronto)
|
| |
| | Re: Somewhere, Under the Rainbow....
|
|
(...) It's just a reflection of a gold coin piece. Or... is it??! I didn't see any leprechauns to the side of me when I shot this. I guess it's now a part of the "Da Vigci" Code... "Big Daddy" Nelson (20 years ago, 21-May-06, to lugnet.build.vignette, FTX)
|
| |
| | Re: Set database Q
|
|
(...) Hi Nathan, thanks for the question. I assume you mean the 1 x 1 plates (not bricks). My gut instinct is to answer "no", because the parts bags weren't designed to be sold as individual sets. Their sale (AFAIK) is merely a side-effect of the (...) (20 years ago, 21-May-06, to lugnet.general)
|
