Hi! In a project in school I'm building an "intelligent" crossroad using a FOX Board, which should communicate with Lego NXT robots (cars). By communicate I mean that the crossroad should tell the arriving cars if the lane they are arriving at is green (they may continue) or red (stop), i.e. pretty much how a normal crossroad works :) And if it's possible, the car should be able to identify itself when arriving and leaving so the crossroad can log/keep track of the traffic.
The car has a Infrared Link Sensor (http://shop.lego.com/Product/?p=MS1046) for IR communication. Our first problem is to find a compatible IR transceiver which we can connect to the FOX Board, and then of course we need to be able to receive/transmit commands from/to the car using C-code. We will have four IR transceivers, one in each direction. I have looked at the Everlight TM3201/TR2 transceiver (http://www.elfa.se/elfa-bin/setpage.pl?http://www.elfa.se/elfa-bin/dyndok.pl?dok=7516.htm) but I have no idea how I even should connect this to the FOX Board... Are there someone here that could help me, if it's even possible to solve? I don't get the difference between IR and IrDA, but reading http://bricxcc.sourceforge.net/nqc/doc/faq.html#irlaptop it looks like I won't be able to communicate with the Lego Infrared Link Sensor with an IrDA transceiver, and then I need suggestions on what IR transceivers I can use on the FOX Board. Best regards, Mattias
