9.2 Bosch BMA150 accelerometer
9.2.1 Range
The BMA150 device provides the following range settings, expressed in milli-g:
? 2000 (±2g)
? 4000 (±4g)
? 8000 (±8g)
The default setting is 4000 milli-g (±4g).
9.2.2 Sampling frequency/bandwidth
The BMA150 device provides the following sampling frequency settings, expressed in
hertz (Hz):
? 25
? 50
? 100
? 190
? 375
? 750
? 1500
The default setting is 1500Hz.
9.2.3 Calibration
The BMA150 device does not require calibration.
9.2.4 Self test
The BMA150 device provides a basic self test, which applies a known bias to the
sensor device and confirms that the resulting sensor readings are within an expected
range. Use the sensor_selftest() function with the SENSOR_TEST_DEFAULT
type code. If the sensor is operating correctly, the function will return true . If the test
fails, the function will return false .
9.2.5 Events
The BMA150 device can generate the following events:
?
?
?
?
SENSOR_EVENT_MOTION
SENSOR_EVENT_HIGH_G
SENSOR_EVENT_LOW_G
SENSOR_EVENT_NEW_DATA
9.3 Bosch BMP085 pressure sensor
9.3.1 Range
The BMP085 device does not provide different measurement ranges, and so no
modification is possible.
28
Atmel AVR4016
8367B-AVR-06/11
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