What you'll need:

• A 3.3V Arduino, such as:

  • Arduino Pro Mini (3.3V version) - requires FTDI Breakout (3.3V version)

  • Or, Arduino Pro (3.3V version) - requires FTDI Breakout (3.3V version)
• ADXL362 Breakout Board
• ADXL362 Arduino Library
• Prototyping…

Q 

Why would a customer want the External SYNC pin and how would they use it?

A 

The ADXL362 has a built-in clock that serves as the basis for all internal
timing, including sampling acceleration data. Data is sampled at one of seven
output data rate…

Q 

I'm trying to use the Selftest feature: I've set Range to 2g, output is 100Hz.
I read the X-Y-Z before the Seltest command and after, the values don.t change
at all.  When I read Selftest register (0x2E), it returns 0 instead of 1 (ST

Q 

Is ADXL362 data AC coupled?

A 

No. The ADXL362 has no high-pass filter; that is, it measures acceleration down
to DC and can therefore be used as a tilt sensor, using the response of each of
its axes to gravity.
Sometimes it is desirable to eliminate…

Q 

Can I get a motion status indicator pin? Can I generate an interrupt pulse
based on motion
status?

A 

The awake bit indicates the motion status of the ADXL362: it is high when the
accelerometer is moving and low when it is not. This bit can be…

Q 

Can I get wider bandwidth than 200 Hz?

A 

No. The ADXL362 is capable of operation up to a 400 Hz output data rate (ODR)
or 200 Hz bandwidth.

Q 

The ST LIS3DH, Bosch BMA250, Freescale MMA845xQ states as low as 2uA best case
power, which seems equivalent to the XL362, so what’s the big deal?

A 

To achieve its 2 µA, the ST LIS3DH (and all similar accelerometers) has to turn
itself…

Q 

I see that the accelerometer can be configured for up to ±8g. What happens if
it sees greater acceleration in the application? Will it get damaged?

A 

The measurement range (±2g, ±4g, ±8g) indicates the range over which the …

Q 

How is this accelerometer unique for use as a motion switch?

A 

The ADXL362 has the unique capability to provide a status signal on a pin: that
is, a pin that goes high when the part is moving and low when it is stationary.
This pin can be tied…

Q 

Can I achieve data rates (ODRs) other than the ones provided by the register
settings?

A 

Other ODRs can be achieved by providing an external clock at a frequency lower
than the nominal frequency. The ODR will scale by the ratio of the external…