Subject:
|
Re: LEGO 9V Train Communication II
|
Newsgroups:
|
lugnet.trains
|
Date:
|
Fri, 28 Dec 2007 17:01:43 GMT
|
Viewed:
|
34019 times
|
| |
|
|
In lugnet.trains, James Powell wrote:
> Bluetooth would give some excellent options
> to the system...
It could, but I'm not sure what the increase in cost would be. IR is extremely
mature technology, and can be done without and special hardware; very, very
cheap, yet (within its limitations) fairly robust (especially LEGO
implementation of it, avoiding signal collision). For Bluetooth, you need a
special chipset (usually not cheap, and I'm not sure even getting cheaper, just
better), as well as constant power consumption (when BT is "on", it is using
power, even if it's not connected or active). I agree it would increase the
possibilities significantly, but I think it would have a significant increase in
cost. The "master-slave" nature of the system might have some advantage here
however: each loco or powered feature needs only the ability to have a single
"slave" connection to a "master" that can handle many slaves, so the slaves
might end up relatively cheap, with more of the cost ending up in the
controller... which could, quite reasonably, be an NXT (on the high side of
price, but the flexibility!).
--
Brian Davis
|
|
Message has 1 Reply:
 | | Re: LEGO 9V Train Communication II
|
| (...) Bluetooth is indeed probably way too expensive and complex. Perhaps the costs would go down, but probably not enough to make this cost-effective. There are cheaper radio systems, like 804.15.4 (ZigBee) that would make more sense than Bluetooth (...) (17 years ago, 28-Dec-07, to lugnet.trains)
|
Message is in Reply To:
| | Re: LEGO 9V Train Communication II
|
| (...) Ohh...my wife and I have a deal, I can have as many steam engines as she has animals. (+1, which I had before her!). So, at present I have 2 large engines here. There's a 3rd one that I part own, but it isn't here...hence, it doesn't count. (...) (17 years ago, 28-Dec-07, to lugnet.trains)
|
25 Messages in This Thread:
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
