sonalideo
About
- Username
- sonalideo
- Joined
- Visits
- 294
- Last Active
- Roles
- Member
Comments
-
Found one way to make it crash now repeatedly. Add new routes and call disconnect immediately before the routes have been added successfully.
-
Have done some test now with accelerometer streaming at 10 Hz. Apparently it's the hardware/android version that sets the limits here. Some data from simple tests that can be useful for others: * Lenovo 7600F. Android 4.4.2: 2 devices usually. Can…
-
Code in short: accelModule.routeData().fromAxes().split().branch().log(ACCEL_DATA).branch().process(new Rms()).process(new Comparison(Comparison.Operation.GT, 1)).stream("alarm").end().commit() .onComplete(new AsyncOperation.CompletionHandler()…
-
Another one on Android 5.1.1. Hard to know what causes it to occur though. Only happens sometimes. But now 3 different ways it crashes on ProcessedDataSignal.unsubscribe. This was in a setup with multiple boards connected at once. Possible race cond…
-
We have tried to connected to multiple devices at once with getMetaWearBoard with different mac adresses. It works fine in the beginning with up to 3 devices but after a while they stop streaming/downloading logs. With 5 devices it goes even faster …
-
Connecting with the iOS app recovered the device from boot mode as mentioned here: http://community.mbientlab.com/discussion/1460/stuck-at-revision-0-1-2
-
It was a accelerometer data route for boot logging and streaming from a split. It was reproducible and was triggered when doing multiple board resets after each other.Now I also see that I get this exception by calling removeRoutes on a board where …
-
The led example works but can't really get it to work for the stream and logs like below.Any modifications that are needed? Code works fine when running inside a macro for the first setup and also deserialization for app restart, but not on battery …
-
Thanks! Worked great. For other it's MetaWearBoard.removeRoutes()
-
Exists in 2.3.0 also so likely not new.
-
Thanks for the investigation! We have done more extensive tests also now and improved our code so that it is disconnecting immediately after 8000 of log entries downloaded. Also upgraded to v1.1.1 and API 2.4.0 (Android 4.4.2). The number of tim…
-
Did more tests today with the logging and I experience the same problems as jgummeson. Using metawear c/1.1.0 firmware/android api 2.3.0 Storing in logs and downloading for a couple of times (also with disconnects every 5 min to avoid full logs) wil…
-
Yes, the memory is likely full and then all kind of strange things starts to happen for me at least. Is this caused by data starts overwriting fundamental parts of the board? To reduce the most of these strange freezes I try to empty the logs and di…
-
Now with the new firmware is it possible to take data from multiple samples and make them into one log entry to avoid the scale and the timestamp taking up space. I.e. something like this: mwBoard.getModule(Accelerometer.class).routeData().fromAxe…
-
Which holder are you currently using and do you have any specifications on those ones? How does the negative pin look like currently? We have decided go with a cr2450 battery for the extended life time. Would be great to get your help on removi…
-
i.e. Lauras post is not something that is possible to achieve currently?
-
If I want to achieve the following behaviour "Freefall motion detected -> wake up -> stream BLE -> go back to sleep" how do I achieve it on Metawear C in Android SDK?
-
Any rough time estimate when this feature is available in the android SDK?
-
Yes, Would be great if possible to aggregate say 10Hz measurements the last minute as one log entry instead of 600.
-
Until the boards with extended memory is released. Is there some other way to be able to squeeze more data into a log entry, for example having one entry with data for the last minutes of measurements? I guess now that some memory for a log entry is…
-
That is great news Matt! Looking forward to testing it.
-
What android SDK method should be called for wake up and sleep?
-
Hi Matt. Thanks for the info! I'm getting to understand a bit more now the underlying mechanics of the logging. We need the acceleration in each axis so a mean or sum are not feasible but would it be possible to take the 2 bytes axis data and …
-
Try resetting the board: http://community.mbientlab.com/discussion/243/reset-switch
-
The NOR FLASH sounds interesting. Is it possible to use that also on the upcoming metawear C or is the memory already larger on that board?
-
Thanks Eric!The new patch works great! No more crashes. However, it feels quite strange that we need to do disconnect and then connect again to garbage collect the logs.. even though we have emptied the data from them..
-
Hi. Thanks for the reply. "At 10Hz you can log for a very long time before you fill up the 10K+ entries in the logger." Raw accelerometer data at 10 Hz will just be logged for 1000 seconds, i.e. 16 minutes or? For me long time is more like…
-
Thanks Eric. We are using the meta wear accelerometer data as input for machine learning algorithms to find and train on different motion patterns. That is why we would like as much data as possible for the input. If we run in streaming mode, …
-
Hi Eric. The following scenario I think is very common and I think should be supported: 1. Acceleration data is to be continuously measured and all data points needs to be delivered to the application since heavy calculations are needed that a…
-
We are using android 4.4.2