MMA8452Q - Interrupt on Tap

Sensors IMU & Motion
1

I have the Sparkfun MMA8452Q accelerometer and am using your library:

https://github.com/sparkfun/sparkfun_mm … le_library

Is there a way to configure the interrupt pins to be activated on a tap? Would be more efficient than just polling using the readTap() function. Any help would be appreciated.

Thanks, Chip

2

Hi Chip.

The library supports tap detection, but sadly we don’t have any example code that shows how to use it. I don’t happen to have one on me to test, but it looks like tap detection might be enabled in the library by default, you might connect a scope up to the interrupt pins and tap/double tap the sensor and see if anything gets output.

Correction, I found another library that has an example for reading taps, I’m not sure why it’s not linked in our tutorials, but give this a try:

  • - [sparkfun /SparkFun_MMA8452Q_Arduino_Library
    • [/list]](GitHub - sparkfun/SparkFun_MMA8452Q_Arduino_Library: SparkFun Triple Axis Accelerometer Breakout - MMA8452Q Arduino Library)