How to use Motion detection interrupt of MPU9250

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Gauner
Posts: 19
Joined: Fri May 15, 2020 3:38 am

How to use Motion detection interrupt of MPU9250

Post by Gauner »

Hey,

I'd like to use the internal MPU9250 with it's internal motion detection interrupt to wake up the Freematics ONE+ Model B. The Interrupt Pin is Pin 12 on the MPU9250. But is it connected to the ESP32? Where does it arrive?
In the scheme https://freematics.com/dl/schematics_on ... 190612.pdf the pin signal going away from the MPU9250 is called MPU_INT, but I cannot find it arrive anywhere.
Have I missed something?

Or is there any other easy way of using the Freematics ONE+ Model B as a motion detecting theft alarm device in lowest power sleep mode?
tavius
Posts: 4
Joined: Tue Jun 22, 2021 8:03 pm

Re: How to use Motion detection interrupt of MPU9250

Post by tavius »

Hi:

Did you found a solution for waking up with the motion sensor interrupt?

Thanks
Octavio.
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