This tutorial details, step-by-step, how to use an ADXL362 to put an Arduino in a low-power state when the circuit is not moving, and then power it back up when motion is detected.
Before you get started…
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…
ADXL362 Blinky Demo by ADIApproved
In the engineering zone post: How to use the ADXL362 to eliminate a power switch and control system power https://ez.analog.com/message/40001 I gave a basic schematic…
Q
How accurate is the clock? How can I make it more accurate?
A
The clock (and all timing parameters) is accurate to within approximately 10%. If a more accurate clock is desired, an external clock…
Q
What’s the best way to evaluate the ADXL362?
A
There are several evaluation options available for the ADXL362 to suit customers anywhere in their design process. The GUI-based real-time evaluation…
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…
Q
Why would someone want a deeper FIFO?
A
A FIFO provides two main advantages: 1. It can collect data while the host processor sleeps (saving power) or tends to other jobs. 2. It can store context…
Q
A bunch of accelerometers on the market today have a FIFO. Why is the XL362 FIFO better?
A
A FIFO has similar functionality to your DVR at home. It can record data (TV shows) while you’re not…
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…