How to do On-Board gyroscope data processing with Meta C?

Min · July 2016

Hi,

I am trying to use gyroscope to detect door opening, for example: people counting. If the total degree of changes has surpassed a preset threshold, for example, x-axis has rotated >90 degrees, people counter would increment. So basically summing gyroscope values and compare with a threshold. Since there won't be continuous Bluetooth connection, the above data processing has to be done on board and the detected door-opening events will be stored and downloaded every few weeks.

After going through the documentation and the examples, I still can't quite figure out if this is doable without changing firmware. Can you tell me if the kind of math listed under "Data Processor" can be set up in certain sequence and executed on board? If yes, could you provide more details on how to do it?

Any advice will be greatly appreciated. Thank you so much

Eric · July 2016

Yes, take a look at the accumulator, comparator, and counter processors.

Min · July 2016

I understand the processors have what I need.
But can these processors be connected in sequence and do ALL the calculations on board WITHOUT connecting to a phone? Do you have an example that shows how data get routed from different data processors?
Thanks.

Eric · July 2016

Processor chaining is covered in our Free Fall tutorial.

What platform are you developing on?

Min · July 2016

Android.
I guess you are referring to this post. Thanks.

ADVANCED EVENT HANDLING WITH THE ONBOARD DATA PROCESSOR PART 2

Eric · July 2016

That post is for an older release of the API. The Android documentation covers the same example using the latest API.

How to do On-Board gyroscope data processing with Meta C?

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ADVANCED EVENT HANDLING WITH THE ONBOARD DATA PROCESSOR PART 2