sensors | Reactive mobile device sensors plugin for iOS Android | iOS library

 by   aritchie C# Version: v2.0 License: MIT

kandi X-RAY | sensors Summary

kandi X-RAY | sensors Summary

sensors is a C# library typically used in Telecommunications, Media, Telecom, Mobile, iOS applications. sensors has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Reactive mobile device sensors plugin for iOS, Android, & UWP. Support sensors - accelerometer, ambient light, barometer, compass, gyroscope, magnetometer, pedometer, and proximity
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            kandi-support Support

              sensors has a low active ecosystem.
              It has 40 star(s) with 11 fork(s). There are 7 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              sensors has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of sensors is v2.0

            kandi-Quality Quality

              sensors has 0 bugs and 0 code smells.

            kandi-Security Security

              sensors has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              sensors code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              sensors is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              sensors releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              sensors saves you 12 person hours of effort in developing the same functionality from scratch.
              It has 36 lines of code, 0 functions and 70 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            Get all kandi verified functions for this library.

            sensors Key Features

            No Key Features are available at this moment for sensors.

            sensors Examples and Code Snippets

            copy iconCopy
            
            // discover some devices
            CrossSensors.Accelerometer
            CrossSensors.Gyroscope
            CrossSensors.Magnetometer.WhenReadingTaken().Subscribe(reading => {});
            
              
            copy iconCopy
            
            	NSMotionUsageDescription
            	Using some motion
            
              

            Community Discussions

            QUESTION

            Flutter: how can I permanently register a sensor (and never unregister it?)
            Asked 2022-Feb-09 at 22:13

            TL;DR how can I have an Android sensor permanently running/active/registered for my app, even if I close it?

            Objective:
            I'm making a Flutter application that counts your steps using the pedometer package,
            which uses the built-in sensor TYPE_STEP_COUNTER of Android,
            which returns the # of steps taken since last boot (iOS). On Android, any steps taken before installing the app are not counted.

            How I implemented it:

            • When the app is actively running in the foreground, each step causes a myStepCount to increment by 1.
            • In all other cases (phone locked, went to home-screen, closed the app...), the android TYPE_STEP_COUNTER sensor should still be running in the background, and once I open my app again, the difference between new stepCount and last saved stepCount (saved using shared_prefs) will be calculated and added to myStepCount.

            Important:
            The TYPE_STEP_COUNTER sensor must be permanently running/stay registered in the background, even after I lock my phone, go to the home-screen, or close the app...

            Observations:

            • On my Samsung Galaxy A02s, my app works perfectly fine, as it it supposed to (as described above). That is because on that phone I also have the Google Fit app installed, which tracks your steps 24/7 (so the TYPE_STEP_COUNTER sensor is permanently registered).
            • On my Samsung Galaxy S7, my app does not work as it's supposed to. myStepCount gets incremented when I take steps while the app is running in the foreground. But steps taken while the app is closed will NOT be added to myStepCount once I open the app again.
              Note: I don't have any other step-counting-apps like Google Fit on this phone.

            Conclusion:
            I need to find a way to register the TYPE_STEP_COUNTER sensor from my Flutter app, and keep it registered even after I close the app.

            2 Attempted (but unsuccessful) Solutions:

            1st Attempt:
            Calling Native Android Code from my Flutter Code to register the sensor
            This is my main.dart file (with the unimportant parts left out for simplicity):

            ...

            ANSWER

            Answered 2022-Feb-09 at 22:13

            Update: I've contacted one of the developers of the pedometer package, and he suggested me to use flutter_foreground_service (which is developed by the same team/company as pedometer). It works.

            But I would still find it interesting, if there is another way (maybe similar to my 2 failed attempts).

            Source https://stackoverflow.com/questions/70975747

            QUESTION

            Multiple override-methods in inheritance each have multiple possible implementations
            Asked 2022-Feb-09 at 08:09

            Let me introduce the following three classes: AbstractProcessor and these two child classes. The code below is not complex because there are only two child classes, but what if procedures1 and procedure2 both has many N candidate implementation? In such case, there are NxN child classes and a lot of duplication will be made by hand-coding. In the code below for example, each procedure can either be fast one or accurate one. So there are 2x2 possible child classes.

            I would ask about technique/design pattern to reduce duplication. More precisely, is there any technique to reduce that NxN hand-coding to 2N hand-coding?

            Noting that procedure1 and procedure2 both have to share the same var_ (in my case it is measurement value of physical world of robot) and the common function foo(), procedure1 and procudure2 can hardly be composed by a has-a relationship. Actually in my application, there are lot of var_ because the robot access to many type of sensors.

            ...

            ANSWER

            Answered 2022-Feb-09 at 08:09

            Inheritance is not the solution to everything. Sometimes all the problems are gone once you don't use inheritance. There are many different ways to do what you want. One is to store the callables as members:

            Source https://stackoverflow.com/questions/71045603

            QUESTION

            How to create one line plot per color series in Observable Plot?
            Asked 2022-Feb-07 at 11:29

            Description:

            I am playing around with Observable Plot an really like how easy it is to set up simple plots.

            Now I have a little "more advanced" chart that I want to plot and need help.

            In my data, I have multiple temp (temperature) readings recorded at a certain timestamp. Each reading comes from a sensor, and each sensor is attached to a certain device (multiple sensors (e.g., 1-3) can be attached to a single device (e.g., 2)). Thus, one data point might look like the following (see bottom script for a full minimal workabel example):

            ...

            ANSWER

            Answered 2022-Feb-07 at 11:29

            I think what you want is

            Source https://stackoverflow.com/questions/71017484

            QUESTION

            UWP Bluetooth LE FromIdAsync Access is Denied Exception
            Asked 2022-Jan-27 at 15:53

            I am following the code on this page:

            https://docs.microsoft.com/en-us/windows/uwp/devices-sensors/gatt-client

            It shows simply scanning for devices and then calling FromIdAsync to get the device, but as soon as I call that method I get an exception from the bluetooth dll saying "Access is Denied".

            I then found another post when I did a search for FromIdAsync and Access is Denied and it included this code:

            ...

            ANSWER

            Answered 2022-Jan-27 at 15:53

            It looks like the issue has something to do with Unity not including the bluetooth capability when building directly from Unity and running.

            When I built the project and then loaded it into Visual Studio and executed it there, I did not get any errors.

            So that will be my plan....build and then open in Visual Studio.

            Source https://stackoverflow.com/questions/70873512

            QUESTION

            Kalman filtering IMU noise c#
            Asked 2022-Jan-09 at 19:43

            I have the following problem. I would like to remove the noise from an IMU sensor. My clue would be a Kalman filter. In the Arduino IDE you could easily implement one via library. Now I would like to solve this by C# directly on the computer but I can't find a library on .NET 4 that works. I tried it with NugetPackages : MathNet. and Emgu.CV. Do you have alternatives that work on .NET 4.0 or do they even work, and if they do, does anyone have a good example? Have a nice day :)

            EDIT: Adding Arduino IDE code

            ...

            ANSWER

            Answered 2022-Jan-09 at 19:43

            It's not so very obvious on how to use these libraries (but that's complex math, so this is actually expected...)

            You can print the contents of a matrix like so:

            Source https://stackoverflow.com/questions/70640864

            QUESTION

            How to use clickable map as a filter for line chart?
            Asked 2021-Dec-27 at 07:15

            I am new to Plotly Dash. I created some Dashboard in Tableau, in Tableau I have a dashboard with a map and a line chart next to it where I can select locations on the map and the line chart shows me the time series line chart from that sensor. I try to do this in Dash and learn some new tools like Dash since I often used Plotly with its beautiful graphs.

            I have internal data on a database with some complex logic where I have the locations on a seperate file, since I want to have as less data as possible I don’t want to include lat und lon in the SQL View. For this question I use data available on the web.

            I have sensor measuremt data like no2, no, o3 and more from sensors at different locations. My goal ist to have a map with the locations of the sensors. When I click on a location it should show me the line chart and I want to be able to select as many locations as I want so that I can compare the line charts.

            Is this possible? I have the line chart, but I can’t connect the part with the map to work. I will use this as a foundation to include many more graphs like bar charts and so on. The top selector will be a dropdown to select the parameter like no2, pm25. Many thanks in advance.

            This is the line chart so far:

            ...

            ANSWER

            Answered 2021-Dec-27 at 07:15

            If you are not bound to use a Graph component for the map, the Map component from dash-leaflet supports click events natively. Here is a small example, where map clicks are used to update a graph,

            Source https://stackoverflow.com/questions/70474999

            QUESTION

            PowerShell script to combine CSVs and add root directory as an additional column
            Asked 2021-Dec-08 at 23:52

            I'm trying to write my first PowerShell script and I'm struggling to get my head around the object orientation and piping approach. So I've got a directory structure like this (Google Takeout Nest directories):

            ...

            ANSWER

            Answered 2021-Dec-08 at 23:52

            Before posting the code, I think it's worth mentioning, this should work as long as all CSVs have always the same headers / columns. If this was not the case something like this could happen:

            Source https://stackoverflow.com/questions/70282701

            QUESTION

            How to calculate distance from a phone thrown in height
            Asked 2021-Nov-30 at 18:54

            In Flutter, there is the sensor package https://pub.dev/packages/sensors that allow to know the velocity X, Y and Z.

            My question is : how could I calculate the distance of a phone thrown in height ?

            Example : you throw your telephone, with your hand at 0.5 meter from the ground. The phone reaching 1 meter from your hand (so 1.5 meter from the ground).

            How can I get the 1 meter value ?

            Thanks all !

            Here is the code I have right now (you need to install sensors package):

            ...

            ANSWER

            Answered 2021-Nov-30 at 18:54

            Correct me if I'm wrong, but if you're trying to calculate a phone's absolute position in space at any moment in time directly from (past and present) accelerometer data, that is actually very complex, mainly because the phone's accelerometer's frame of reference in terms of x, y, and z is the phone itself... and phones are not in a fixed orientation, especially when being thrown around, and besides... it will have zero acceleration while in the air, anyway.

            It's sort of like being blindfolded and being taken on a space journey in a pod with rockets that fire in different directions randomly, and being expected to know where you are at the end. That would be technically possible if you knew where you were when you started, and you had the ability to track every acceleration vector you felt along the way... and integrate this with gyroscope data as well... converting all this into a single path.

            But, luckily, we can still get the height thrown from the accelerometer indirectly, along with some other measurements.

            This solution assumes that:

            • The sensors package provides acceleration values, NOT velocity values (even though it claims to provide velocity, strangely), because accelerometers themselves provide acceleration.
            • Total acceleration is equal to sqrt(x^2 + y^2 + z^2) regardless of phone orientation.
            • The accelerometer will read zero (or gravity only) during the throw
            • This article in wired is correct in that Height = (Gravity * Time^2) / 8

            The way my code works is:

            • You (user) hold the "GO" button down.
            • When you throw the phone up, naturally you let go of the button, which starts the timer, and the phone starts listening to accelerometer events.
            • We assume that the total acceleration of the phone in the air is zero (or gravity only, depending on chosen accelerometer data type)... so we're not actually trying to calculate distance directly from the accelerometer data:
            • Instead, we are using the accelerometer ONLY to detect when you have caught the phone... by detecting a sudden change in acceleration using a threshold.
            • When this threshold is met, the timer is stopped.
            • Now we have a total time value for the throw from beginning to end and can calculate the height.

            Side notes:

            • I'm using AccelerometerEvent (includes gravity), not UserAccelerometer event (does not include gravity), because I was getting weird numbers on my test device (non-zero at rest) using UserAccelerometerEvent.
            • It helps to catch the phone gently ***
            • My math could be complete off... I haven't had anyone else look at this yet... but at least this answer gets you started on a basic theory that works.
            • My phone landed in dog poo so I hope you accept this answer.

            Limitations on Accuracy:

            • The height at which you let go, and catch are naturally going to be inconsistent.
            • The threshold is experimental.... test different values yourself. I've settled on 10.
            • There is probably some delay between the GO button depress and the timer beginning.
            • *** The threshold may not always be detected accurately, or at all if the deceleration ends too quickly because the frequency of accelerometer updates provided by the sensors package is quite low. Maybe there is a way to get updates at a higher frequency with a different package.
            • There is always the chance that the GO button could be depressed too early (while the phone is still in your hand) and so the acceleration will be non zero at that time, and perhaps enough to trigger the threshold.
            • Probably other things not yet considered.

            Code:

            Source https://stackoverflow.com/questions/70026672

            QUESTION

            Can not Send POST request to @RequestBody in Spring, error 415
            Asked 2021-Nov-29 at 12:51

            I am working currently on a project and I need to send a POST request to spring. I looked or several hours already for a solution and didn't find one to work. The request worked when I developed that part. The problem is that after creating some new functionalities(2 new endpoint in another controller) the POST requests for creating or updating the entities stopped working without changing code in the specific area.

            The Controller:

            ...

            ANSWER

            Answered 2021-Nov-29 at 12:51

            It seems that you have multiple @JsonBackReference and @JsonManagedReference in your application and as a consequence, you must provide a name for all pairs as follows:

            Source https://stackoverflow.com/questions/70153990

            QUESTION

            CodeCoverage not showing in SonarCloud in a Python project
            Asked 2021-Nov-23 at 21:59

            I'm trying to include the codecoverage from my Python project.

            First I executed the command py.test --cov=tests/ --cov-report xml:cov/coverage.xml to run the tests and report to cov/coverage.xml

            My sonar-project.properties file:

            ...

            ANSWER

            Answered 2021-Nov-17 at 10:07

            As of today, coverage.py doesn't support Sonarqube: https://github.com/nedbat/coveragepy/issues/1033

            Can you try the experiment mentioned on that issue, and report there about what happened? Maybe there's an easy adjustment to make here.

            Source https://stackoverflow.com/questions/69995004

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install sensors

            Be sure to install the Plugin.Sensors nuget package in all of your main platform projects as well as your core/PCL project.

            Support

            AccelerometerAmbient LightBarometerCompassDevice OrientationGyroscopeMagnetometerPedometerProximity
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