I’ve read many posts involving Interrupts and have read the forum and gotten some insight fromhttp://www.gammon.com.au/. This is my first post to the forum, so my apologies if I have posted this incorrectly.
I am working on a project that needs to use the ‘tap detection’ aspect of an MPU9150. So far, all of the information and Arduino code I have found has been for the ADXL345. I have the MPU9150 up and running with an Arduino Pro Mini 3v. I am getting all of the raw data I need. However, I would only like to retrieve that data when signaled (via INT). I have a piezo sensor connected to the Pro Mini as well (A1). The piezo knock sensor test runs perfectly. Right now, I do not have the INT or FSYNC pins connected to the arduino board. I am wondering; if I want to only retrieve data from the MPU9150 when either it, or the piezo sensor has been tapped, do I connect the INT or FSYNC to my arduino board? If so, do I connect it to digital pin 2? If I can get the serial monitor to print the raw data upon a single tap, and only print when it has been tapped without the use of the piezo, that would be preferred. Whether it be through the accelerometer, or the piezo, I just want to display the raw data only when it has been triggered by the tapping event.
Thanks in advance for any assistance. I was unable to create a post on www.gammon.com.au
If Nick Gammon could respond to this post, I would be extremely grateful.