IR Detectors Recs/Reviews

[Anonymous]

I have several places on my layout, and multiple tracks, where remote detection would be nice. I've been reading up on it, here and elsewhere, and have settled on IR detection as the solution I lean toward. (Not a fan of reed switches, and cc tv would get too involved for use in multiple places).

Having said that, can I get some feedback on IRDOT and other IR detection systems? Experiences, recommendations, etc.

Alternatively, while I'm about 95% sold on IR, if you feel strongly about another method, I'd love to hear that too...

Thanks,

Kris

[Anonymous]

I use them, but my layout is O-gauge, so I don't know what is available in other gauges. My $25. Lionel ones work great, and you can set the sensitivity level as well as length of time the item being activated is "on". Joe

[ndbprr]

I'd go to Radio Shcak and by a pair for about $3-5.00 and play with them. You should be able to tie them to the fixed 12 volts DC on a power pack for power.

[cacole]

I used side-looking IR emitters and detectors shooting the beam across the track at an approximate 20 degree angle and aimed slightly upward so the inter-car gaps wouldn't cause false triggering. These are for triggering crossing signals. Side-looking IR LEDs are so small and unobtrusive that they are not very noticeable, even out in the open.

[Seamonster]

Don't forget that if you just buy a pair of IR emitters and detectors, you're going to need some electronics to go along with them to make them work. If you're not into rolling your own electronics, then IRDOT or a similar system that comes complete with the electronics would be best.

[grandeman]

We went the reed switch route. The system is working very well and was reasonably priced. It indicates not only which tracks are occupied, but wether the train is arriving or departing. I know you're not a reed switch fan, but they are worth a second look.

http://www.trains.com/community/forum/topic.asp?page=1&TOPIC_ID=48247