Data from MetaWear are not updated RT

jiko · September 2014

Hi,

I have just started experiment with the MetaWear and tried the MetaWearApiTest from github. Unfortunately, I am not able to see the data updating real time. Whenever I am pressing a button in the DetailViewController i.e. "Read Temperature", the UI label is updated after ~20s or more. Same with the accelerometer graph - the values are added to the graph after a while. After adding debug output in the acquisition loop of the accelerometer, I can see that the values are constantly updated, but the UI is not updating. I am using an iPhone 4s. Are you experiencing similar issues?

Could you elaborate on this? Is there a way that I could synchronously see the data acquired in the UI?

Best,

IK<

cpignol · September 2014

Hi,

Yes and a solution for this problem has been published by Jonathan King:

Replace the DeviceDetailViewController.m

https://gist.github.com/jonathanlking/0dfbc5123bcf4de2db8e

Best,

Claude

jiko · September 2014

Thank you cpignol.!

Works like a charm... Maybe it should be integrated in the API in future releases.

Best,

IK<

cpignol · September 2014

Agree,

Claude

stephen · September 2014

We have just released a new iOS API release (v1.0.0) which makes the main thread the default for callbacks, so you don't have to explicitly dispatch everything to the main queue anymore.

https://github.com/mbientlab/Metawear-iOSAPI/archive/1.0.0.zip

Thanks,

-Stephen

Data from MetaWear are not updated RT

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