Register setting for ADXL343 without use of MCU?

Hi Joseph,

WIth that part, you need a small processor to send I2C or SPI to the part to configure it.  You may be able to use something as small as a pic10lf322.  I have used the ADXL362 and a pic to initilize it.

James

Thanks James, I appreciate your rapid response. Before I wade down the PIC path, let me ask this. Does Analog make a cheap, small, double-tap sensor that requires no initialization? Perhaps the ADXL343 is too big a component for the simple task I require. It only needs to pull an int pin down when it detects a double-tap. I don't need any inertial data.

Thanks,

Joe

Hi Joe,

  Sorry, you need to configure it. there is no pre-configured part.  If you look at https://ez.analog.com/thread/2420 there are a bunch of examples with a similar part. Since the thresholds and timings on the tap and double tap are related to your mechanical system, you need to tune it to your setup.  The examples in that thread and in the application notes are a good starting point but may not be 100% good for your application.

So, No there are no pre-configured parts. 

James

Thanks James. You are awesome!

Cheers,

J