I have built a PIC-controlled rover. Now I need to give it some kind of moving capability. Does it make any sense to try to make it to find its location through a GPS ? I have looked in the Net for GPS accuracy and I have seen very different values, depending on the technology used. For systems using a stationary beacon besides the satellites, precisions of cms. can be achieved. Has anybody tested this ? Are low level commercial systems (that is, not too expensive ones) capable of this ? If GPS cannot be used, has somebody any idea to know the position of my rover (besides IR beacons and triangulation) ? Thanks ! -------------------------------------------------------------- Joan Ilari joan.ilari@terra.es Barcelona Voice: +34 93 431 96 39 Spain "I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched C-beams glitter in the dark near the Tannhauser gate. All those moments will be lost in time, like tears in rain. Time to die..." -Blade Runner- --------------------------------------------------------------- -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads