>Hi- >The people in the model railroading fraternity would like to put RFID >transponders onto their trains. However the readers are too expensive. >Does anyone know how to build a cheap transmitter/receiver to read >them? I expect they could be quite crude=cheap as the distances >involved would ideally be <3 inches. >David H Hi, http://www.olimex.com/kits SCL05/ASM +SCL04K transponders check how to order on our other web pages: http://www.olimex.com/dev or http://www.olimex.com/pcb Best regards Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) Development boards for PIC, AVR and MSP430 (http://www.olimex.com/dev) -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads