Subject:
|
Re: Lego Mindstorms Controlled Train Crossing (Duel Track)
|
Newsgroups:
|
lugnet.robotics, lugnet.trains
|
Date:
|
Fri, 15 Jun 2001 06:23:57 GMT
|
Viewed:
|
63 times
|
| |
|
|
In lugnet.robotics, Dean Husby writes:
> After 9 months I finally put together the Web Page for my Lego
> Mindstorms Controlled Train Crossing.
>
> I invite you to check it out.
> http://www.akasa.bc.ca/tfm/lego_traincrossing.html
Nice! I too have been tossing around something like this! My idea was very
similar, but used 4 light sensors, 2 in parallel like this:
Crossing -> | |
================================ <- Track
X1 X2| |X3 X4
X2 & X3 are in parallel, when X1 is broken, boom goes down & stays down
while either X1, X2 or X3 is broken. Similarly for X4. This means X1 & X4
can be some distance from the crossing, so the boom goes down long before
the train arrives, but raises very quickly after it leaves. Safer for minifigs!
Regards
ROSCO
|
|
Message has 1 Reply:
Message is in Reply To:
6 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
|
|
|
|
