Eric
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The error occurs because you repeatedly requested the firmware allocate resources for the logger but have never released any of resources. Simply press the reset button before closing the app.
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What do you mean by "defined location output"?
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You need to release the allocated resources in the firmware when you are done using the board. The freefall app already has a button on the screen to reset the board.
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If you must retain the data on those boards, here are your options: * Wait for the MetaBase app to be updated to support downloading data from boards that were setup using the previous version. This can take several days before the update is live …
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Just because the device looses connection does not mean it is in sleep mode. I've stated how to tell if the board is in sleep mode so first lets determine if the boards are behaving as described in my previous post.
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The IMU should be able to detect the motion from changing position. Have you already collected data on transitioning between the different positions?
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We do not use the Bluetooth 5 variant.
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Try using the new MetaBase app to download data from those boards.
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In your latest experiments, does this behavior consistently happen or is it random?
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What I mean is what were you doing with the board. It sounds like the board was subjected to some shock or vibrations strong enough to knock the IMU loose. You can contact customer support to inquire about board repairs. https://mbientlab.com/co…
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Setup the product to do what?
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What sensors are you using during the logging sessions and how fast are you sampling them?
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If your laptop is on the Creator's Update, the windows app will be updated to use the new Bluetooth APIs that don't require pairing before hand.
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If the board is still advertising, then it is not in sleep mode.
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Which iPad and iPhone models are you using and what iOS versions are they running?
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Initial position means just that, the board's position when the sensor fusion algorithm starts running. However, it doesn't matter what the initial position is as you are determining if the board's orientation has deviated from said position. I…
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Was the MetaMotionR board working before? If it was, how were you using the board prior to this issue occurring? If it was never working, fill out an RMA request and use the MetaBase app to send a diagnostic file to MbientLab. https://play.googl…
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The CSV files are saved locally to the device. Use iTunes or a file explorer app to browse your document's directory.
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Do the unpairable devices work with the Android or iOS MetaBase app?
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Code looks fine to me so I have some additional quesetions: * The first picture in your image corresponds to the erroneous data I assume? * Were you receiving correct quaternion values before? * Have you tried using the IMUPlus mode? * Does res…
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I don't see any calls to serialize or deserialize in your code. Also, a subscriber's environment should be set when you're ready to download the data. Modify your code so it follows these flows for setup and download: Setup * Add routes for yo…
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Yes, use IMUPlus mode.
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This feature was just implemented for the iOS and Android SDKs. https://github.com/mbientlab/MetaWear-SDK-iOS-macOS-tvOS/releases/tag/2.10.0 https://github.com/mbientlab/MetaWear-SDK-Android/releases/tag/3.2.0
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Ah yes, tweak the connection parameters as indicated in the documentation.
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Post the MetaWear code you are currently running.
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See this section in the documentation:https://mbientlab.com/androiddocs/3/advanced_features.html#serialization
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We have moved onto using Swift for Apple development now. The Objective-C tutorials will be removed once they have been updated to Swift.
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Hrm, it seems that using DataContract serialization with PreserveObjectReferences = true does not properly serialize the data on UWP, which is a problem since the unit tests generate completely different files. I'll will have to experiment with an…
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Yes you can however you cannot stream that much data over a BLE connection. Either log the data (bounded by the amount of flash memory) or limit the output data rate such that the MetaMotion board is only sending data at a max throughput of 100Hz.
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Interesting, it seems the code, for whatever reason, is reading the analog values multiple times? I'll have to look over the code again and see if I can spot anything wrong. Yes, ADC is simply a ratiometric value as defined in your equation.