Hi Lee, > The driver mentions that the first group of sensors have a WAI of > 0x3c: #define ST_MAGN_1_WAI_EXP 0x3c And when I print out the WAI read > from the device: Requested device: lsm303dlh_magn - read WAI: 0x3c I > guess I could have been lied to again by the board's datasheet again > and the attached device isn't actually a LSM303DLH, but how can I tell > for sure? On LSM303DLH you have to read 0x0a 0x0b and 0x0c registers, you have to find 0x48, 0x34 and 0x33. I think in the snowball there is the LSM303DLHC. Denisÿôèº{.nÇ+‰·Ÿ®‰­†+%ŠËÿ±éݶ¥Šwÿº{.nÇ+‰·¥Š{±þG«�éÿŠ{ayºʇڙë,j­¢f£¢·hš�ï�êÿ‘êçz_è®(­éšŽŠÝ¢j"�ú¶m§ÿÿ¾«þG«�éÿ¢¸?™¨è­Ú&£ø§~�á¶iO•æ¬z·švØ^¶m§ÿÿà ÿ¶ìÿ¢¸?–I¥