joerg schrieb: > Am Mi 23. Januar 2008 schrieb Schmidt András: >> Hi! >> >> A compass module would be very nice with many applications! >> I have no hardware related experince. Is it possible to integrate a chip >> like this into the phone? How would you do that? > True drop-in solution > Simple I2C interface > 2.7 to 5.2V supply range > Supply current : 1mA @ 3V > > I2C is a bus, what means you should be able to simply tap the 2 wires of the > existing I2C and connect to the chip(pin 7, 10). Another 2 wires for power > (pin 5, 14) - 1 mA is pretty low consumption - and some birds food (Ca, Cb) > and a drop of cyanide glue to stick the chip somewhere well away from > magnetic interference (metal and "high" electric current). That's it. Some > driver to read out the chip for the ones who like it the pretty way.. ;-)
I doubt that such a device would work in the phone, sorry. The GTA01 contains three loadspeakers with magnets, AFAIK GTA02 will still contain at least two. Then there is massive EM radiation from the GSM antenna which will interfere and finally there is the Bluetooth module also emitting EM when used. Earth's magnetic field is very weak so almost *any* EM radiation near to the measuring device (the chip) will interfere. Cheers nils faerber -- kernel concepts GbR Tel: +49-271-771091-12 Sieghuetter Hauptweg 48 Fax: +49-271-771091-19 D-57072 Siegen Mob: +49-176-21024535 -- _______________________________________________ OpenMoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
