Rainbow Electronics DAB-GPS-C01 User Manual
Page 23
AMS0805WAH
MOTION SENSOR
23
AMS0805WAH Accelerometer Offset Calibration Mode Manual
The accelerometer’s offset can be changed a little value, because of big shock, very high
temperature by soldering etc. For the more precision azimuth and tilt, we need to calibrate
accelerometer’s offset. AMS0805WAH supports ACC offset calibration mode. It is that you can
calibrate accelerometer’s offset in this mode.
The calibration sequence is below.
- Put AMS0805WAH(or product) on a table.
Î Maintain stable condition before starting the CAL ACC offset mode.
- Start the Accelerometer Offset Calibration Mode
Î If host transmits ‘0xAA’ and ‘0x55’ continuously, AMS0805WAH is started the
Accelerometer Offset Calibration Mode.
- Completely and slowly rotate AMS0805WAH on the table.
Î Don’t shake and give any tilt when AMS0805WAH is in the Accelerometer Offset
Calibration Mode.
- Exit ACC offset mode
Î If host transmit ‘0xAA’ and ‘0x55’ continuously again, AMS0805WAH is saved offset
values and exit the Accelerometer Offset Calibration Mode,