Ishidres

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• Concept: Run smoke tests / unit tests in custom built Espruino IDE docker images with GitHub actions

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• Concept: Run smoke tests / unit tests in custom built Espruino IDE docker images with GitHub actions

  in Bangle.js • 3 weeks, 2 days

  

  Thanks for the info. If this already exists, cool, no need to build any new images then. And yes, I get the point that automatically catching and uploading errors would definitely be a problem regarding privacy.

• Concept: Run smoke tests / unit tests in custom built Espruino IDE docker images with GitHub actions

  in Bangle.js • 3 weeks, 6 days

  

  Hi everyone! I was thinking about the following possible workflow in order to automatically run unit tests or smoke tests in an emulator:

  • build a docker image that contains the Espruino IDE (https://espruino.com/ide) or a smaller version of it
    
  • when a commit in a PR gets pushed, this triggers a GitHub action
    
  • optionally the smoke tests could also be run just once a day, e.g. at midnight, to save GitHub Actions minutes
    
  • this GitHub action uses the Espruino IDE docker image and automatically loads the newly added/changed code in the IDE
    
  • some test cases that check basic functionality of the app run and confirm the changes don't break other code
    
    

  When it comes to test cases, obviously some mocking needs to be done, however I think this is perfectly doable. For example https://www.espruino.com/ReferenceBANGLE­JS2#l_E_getTemperature always returns NaN in the emulator, but the easiest way to mock it for the test suite would be to call E.getTemperature = function() { return 20; }; at the start of the test suite.

  For example, here's some pseudo code I came up with for activityreminder:

  // Suite setup
  // Mock some functions
  E.getTemperature = function() { return 27; }; // assume the user is always wearing the smart watch
  settings.maxInnactivityMin = 0; // immediately trigger an inactivity warning by setting max inactivity to 0 min
  
  // Test cases
  // wait a few seconds and assert E.showPrompt() got called (which should happen)
  // if not, fail the test or raise a warning
  // (optionally) take a screenshot and include it as an artifact
  

  Why would this be useful?
  Around 2 weeks ago there was an issue where (if I understood correctly) some firmware changes caused a new date format which broke activityreminder because it still expected/used the old date format. We could detect sudden breaking changes like this one using test cases. For example, the test case above would have failed after the new date format changes, because it couldn't have read the new date format.

  Obviously this is a huge suggestion and is probably low priority, but I'm just sharing my ideas and I'm open for feedback! What are your thoughts about this?

• Request: Wake on Double Tap (instead of single tap)

  in Bangle.js • 2 months

  

  Just updated settings App and noticed this feature is already added now! Thanks, very cool to see that feature requests get added so quickly! 😁

• Request: Wake on Double Tap (instead of single tap)

  @Ishidres started

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• How to get exact timestamps of individual heart beats for RMSSD to calculate HRV for stress analysis?

  in Bangle.js • 2 months, 1 week

  

  Understood, thanks. I'll try to use my own HRM beat detection using raw data then (as soon as I got the time) and will share it here for feedback then if you guys wanna.

• How to get exact timestamps of individual heart beats for RMSSD to calculate HRV for stress analysis?

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• How to get exact timestamps of individual heart beats for RMSSD to calculate HRV for stress analysis?

  in Bangle.js • 2 months, 2 weeks

  

  You can calculate the RMSSD using the differences in ms between heartbeats like this:

  function calculateRMSSD(RRIntervals) {
        var sumOfDifferencesSquared = 0;
        for (var i = 0; i < RRIntervals.length - 1; i++) {
            var difference = RRIntervals[i + 1] - RRIntervals[i];
            sumOfDifferencesSquared += difference * difference;
        }
        var meanSquaredDifference = sumOfDifferencesSquared / (RRIntervals.length - 1);
        var rmssd = Math.sqrt(meanSquaredDifference);
        return rmssd;
  }
  

  This is one of many ways to calculate the stress level. The event Bangle.HRM only gives the current heart beat calculated, however, the event doesn't get fired at exactly the time when a heartbeat was recognized.

  I know there is a .raw property that provides raw data by the sensor, which you could use to manually replicate the algorithm that measures when individual heart beats occurred, however I believe this procedure is kind of reinventing the wheel.

  I'm pretty sure the data about the individual time differences between heart beats already exists somewhere because otherwise the algorithm couldn't calculate the heart beat.

  So, how do I get the differences between individual heart beats? Thanks.

• Get step count of the last minute (not 10 minutes) to record weekly moderate and vigorous intensity aerobic physical activity?

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• Get step count of the last minute (not 10 minutes) to record weekly moderate and vigorous intensity aerobic physical activity?

  in Bangle.js • 3 months

  

  Thanks everyone!

  I guess one could also make the assumption that at times with lots of app switching you probably are not doing a lot of moving around. So it probably wouldn't impact the statistics too much doing without retaining info across resets/loads.

  Yes, that's probably true, so to save CPU and battery usage, I'll probably ignore App switches and not save data to storage, and assume that no significant activity was done during that time.