Sync Accelerometer and Gyroscope (Fitbit Ionic)

[SimonWdm]

Hey everyone,

I am developing an app on Fitbit Ionic which needs accelerometer and gyroscope data. I am using the built in sensor APIs with a sampling rate of 20 Hz with a batch size of 20. My problem is that if I do this:

acc.start()
gyro.start()

there is some asynchronity between the individual readouts of the sensors. Is there a way to synchronize them such that the gyro evaluates at the exact same timestamps as the accelerometer?
If not, what workaround would you suggest? My idea would be to check whether the initial readout of a gyro batch was in the same second as the corresponding accelerometer batch and then "glue" them together.

I appreciate any help or suggestions.

Best

Simon

[JonFitbit · Accepted solution]

It's come up before and I have a feature suggestion tracked internally for this.

I think the only way would be to merge the data into another array as you suggested.

[SimonWdm]

Thanks for the quick reply. I would also highly appreciate such a feature.

[philvms]

Any Updates to this? I need to have the gyro and acc reading data synced together at 100hz.

[Walidaljaouni]

hello, can anyone help me with my project? its related to this topic, i can pay. thanks