Moin, Am Fri, 9 Nov 2007 10:22:24 +1300 schrieb Robin Paulson:
> ideas? any other absent-minded daydreamers out there? is RFID the way > to go? are there any unlicensed parts of the radio spectrum that are > free for use by anyone using low-powered radio transmitters? It should be possible to get http://www.openbeacon.org/ to do just that. The tags can talk to each other or to a base station. You should be able to program two tags to ping each other in regular intervals and then make themselves noticeable when they lose contact. (There are two I/O pins that could be connected to an external piezo buzzer or vibrator.) In principle it should even be possible to fit one of the tags into the Neo, though that might require a new tag PCB design. I think roh already had dreamed about something like that some time before (in a different context). The radio transceiver used by OpenBeacon operates in the 2.4GHz band, but does not follow any particular standard (e.g. no Bluetooth, no Wifi). But it's small and very low power. -- Henryk Plötz Grüße aus Berlin ~ Help Microsoft fight software piracy: Give Linux to a friend today! ~ _______________________________________________ OpenMoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
