iOS Accelerometer Example

tpitman · August 2018

I have downloaded the github StarterProject example. I have it building and running on iOS. It connects to my MetaMotionR and retrieves the temperature log from the device.

I would like to now modify it so that I can get real time accelerometer data from the device. I can't figure out how to do that.

I looked at the documentation and found a page talking about Swift tutorials here:

https://mbientlab.com/tutorials/SDKs.html#swift

The problem is that example code doesn't look anything like the code in the downloaded example. The downloaded example self.device doesn't have a property called accelerometer.

It also doesn't use this:

    device.addObserver(self, forKeyPath: "state", options: NSKeyValueObservingOptions.New, context: nil)
    device.connectWithHandler

Instead the downloaded sample has this:

    self.updateLabel("Restoring")
    if let state = DeviceState.loadForDevice(device) {
        // Initialize the device
        device.deserialize(state.serializedState)
        self.updateLabel("Connecting")
        device.connectAndSetup().continueWith

So where do I find an example of accelerometer that would work in the StarterProject example?

Eric · August 2018

The Swift SDK just underwent major breaking changes in v3; the tutorial page currently is for the older v2 releases.

The v3 release wraps around the same C++ library as the JavaScript and Python SDKs so the Swift code will follow the same flow as the JS / Python examples:
https://github.com/mbientlab/MetaWear-SDK-JavaScript/blob/master/examples/multi_device.js

You'll want to refer to the C++ documentation as well as you will be calling it from Swift:
https://mbientlab.com/cppdocs/0/

patrice · August 2018

Thanks Eric for the links but is it possible to get a complete example for IOS as we had before with MetaWearApiTest (https://github.com/mbientlab/MetaWear-SampleApp-iOS) ? for accelerometer, but also gyroscope and sensorfusion (NDOF particularly as new firmware seems to improve it...)

Personally I choose to worked with metamotion-r two years ago as some clear examples for IOS were provided with this example app.
Without a guideline to convert our iOS code, this new firmware appears like a nightmare as we have to rewrite all our code...

Thanks for your attention

tpitman · August 2018

I got it all working. Thanks, Eric, for the tips.

iOS Accelerometer Example

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