temperaturesensor | Wireless Temperature Sensor using a Raspberry Pi
kandi X-RAY | temperaturesensor Summary
kandi X-RAY | temperaturesensor Summary
Capture wireless temperature sensors using a Raspberry Pi?.
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QUESTION
I have created a small identity network using Insomnia workspace as it described here https://developer.oftrust.net/guides/workflow-using-insomnia-workspace/ I have account on sandbox.
I wanted to validate the identity graph was created as defined so I tried some requests from Identity API. As described in docs here. Tried https://api-sandbox.oftrust.net/identities/v1/discovery with query parameters values:
...ANSWER
Answered 2020-Nov-13 at 15:49You need to use another query parameter, basically which discovers the AtDataProduct type of Link ( which has been created between Sensors and Data products)
QUESTION
I'm reading a humidity/temperature sensor, and want to display the reading continuously (e.g. every 500ms) Currently, I can only update the output upon user click.
...ANSWER
Answered 2020-Feb-11 at 19:47Something simple like this, with a wx.Timer should get you started.
QUESTION
I'm trying to create a subject-observers system in C++, like the events system in C#. the observer class:
...ANSWER
Answered 2020-Jan-17 at 14:23how can I create a shared_ptr from a reference of an object derived from an abstract class?
In general, you cannot. A shared pointer to abstract base can only be pointed to concrete instances. You generally cannot know the concrete type through a base reference at compile time.
You should probably change the interface so that the function accepts a shared pointer as argument, instead of a reference.
QUESTION
I know that dispatch_group_leave calls need to be balanced with dispatch_group_enter.
Here is the block of code where my crash is happening (randomly, not always)
ANSWER
Answered 2020-Jan-13 at 18:10Here's the last part of getVibrationHistorySuccess:failure:, copied from your question:
QUESTION
We intend to use Spring-HATEOAS to enrich our interface with hypermedia informations via HAL/JSON.
What we are wondering is, how to provide sufficient meta information of what we are going to find in a resource after following a link.
I identified different methods to publish such information, with one being the content type of the resource and the other being a profile.
However both do not allow any kind of polymorphism.
Let's assume we model a weather station which has a temperature a wind and a light sensor.
In my concept I would link those three sensors:
ANSWER
Answered 2019-Dec-05 at 02:19I identified different methods to publish such information, with one being the content type of the resource and the other being a profile.
In general the media type defines how to process a payload but not necessarily what object or type its content relates to. I.e. on receiving a HTML payload you don't necessarily know that the page contains user information or the like, unless you have certain semantic annotations present within the markup. All HTML defines is a set of valid elements, how these elements have to be embedded in the payload (i.e. either ... or ), which attributes they support and when it is admissible to add which elements, i.e. certain elements such as the list-item tag
In regards to profiles, according to RFC 6906
A profile is defined not to alter the semantics of the resource representation itself, but to allow clients to learn about additional semantics (constraints, conventions, extensions) that are associated with the resource representation, in addition to those defined by the media type and possibly other mechanisms.
It is therefore a configuration option to set on the media-type processor, which depending on the profile specified, might apply additional validation rules, allow certain elements to appear in certain elements or the like. I.e. HTML4.01 added profiles to the element so that search engines that understand this profile know that meta-information for author, date, keyword and copyright will be present which they can use directly instead of attempting to parse that information from the body directly.
HAL supports both the specification of profiles on media-type definitions as well as on link objects.
... how to provide sufficient meta information of what we are going to find in a resource after following a link.
In HTML a user is usually hinted what invoking a link might return by adding additional text, that summarizes the content of that target, or images, that express an affordance to the user, to the link context. For humans this is usually easy to understand though for an automated process such meta information are usually difficult to process and act upon. Instead of using free-text or images to express the relation the target has to the current content, link relations are used to express this.
According to RFC 8288 (Web Linking)
... an application will define the link relation type(s) it uses, along with the serialisation(s) that they might occur within. For example, the application "Web browsing" looks for the "stylesheet" link relation type in the HTML link serialisation (and optionally in the Link header field), whereas the application "AtomPub" uses the "edit" and "edit-media" link relations in the Atom serialisation.
Web linking also describes that link-relations not only describe simple semantics but also particular attributes or behaviors. More formally, they describe how the current context is related to an other resource.
Wikipedia describes link relations as:
A link relation is a descriptive attribute attached to a hyperlink in order to define the type of the link, or the relationship between the source and destination resources. The attribute can be used by automated systems, or can be presented to a user in a different way.
Such link relations should be based on standardized terms or make use of an extension mechanism, i.e. dublin-core. Microformats also lists plenty of commonly used relation names in HTML5. While link-relations must not constrain the processing of the current document or the availability of target representation types, they can specify certain behaviors or properties of target resources, i.e. that a resource supports certain HTTP methods or that support of certain media-type formats is required.
A link may have multiple different link relation names assigned. Clients that do not understand a certain link relation name should ignore it and only operate on those they do know and support. This basically just allows to add as many relation names to the URI context as needed. This is similar to the semantic Web where there may exist multiple predicates between a subject and object and further relation exist that indicate that a predicate expresses the same as an other one and may thus be used interchangingly.
HAL supports link-relations out of the box and adds CURIEs on top, which is a further reserved link-relation name itself, that hints a client on the location of a resource documentation. Link relation extension, as defined by RFC 8288, do not necessarily need to point to a documentation describing the semantics, therefore clients shouldn't access such URIs by default.
A links-section within a HAL representation response may look like this for the given problem statement:
QUESTION
I'm struggling with deserialization of the json file using the newtonsoft.json.
Object which I want to deserialize looks like this:
ANSWER
Answered 2019-Aug-13 at 13:42You can create a custom JsonConverter to convert Sensor objects to concrete derived classes. Here's a working example of such a JsonConverter:
QUESTION
I'm trying to get access to the CPU temperature of Android devices, specifically the Samsung Galaxy S8 (for use with a GearVR) to be able to display it in the app interface. The TEMPERATURE and AMBIENT_TEMPERATURE sensors don't seem to be available, unless I've done something wrong in my code?
I tried getting the default AMBIENT_TEMPERATURE and TEMPERATURE sensors from the sensor manager, but both return null.
...ANSWER
Answered 2019-May-21 at 17:12Not every sensor exists on every device. Your device may not have a temperature sensor at all. That's one of the most likely ones not to exist, as the data was generally misinterpreted and not very useful.
QUESTION
I am a newbie to highcharts. I have created a basic line chart using highcharts. Now, I want to filter the data using Date range. How can i do it ? I am calling the API to AngularJS, so any help would be appreciated with coding in AngularJS.
...ANSWER
Answered 2019-May-16 at 16:47I think this example will help. It is based on this previous SO answer.
QUESTION
I have problem with decoding JSON. I am trying to decode my JSON with
let temp = try JSONDecoder().decode([LastTemperatureResponse].self, from: data).
My Codable structs is following:
ANSWER
Answered 2018-Jun-07 at 10:51After tracing your issue, I figured that there is couple of issues, First of all:
You are NOT declaring optionals:
based on the attached json, it seems that there are some of the properties that do not always exist, such as:
status=>VportSensor.temperature=>Measurement.temperature=>VportSensor.temperature=>setpoints.
you would need make sure to declare any property that may not received as optional.
Also, The implementation of the Codeable structs:
the implemented structs seem to be not typical to the json response structure, make sure to declare your codable structs to be matched with the received json structure.
Note That:
lastUpdateanddescriptionare not used inVportSensor.- Based on my answer, there is no need to
TemperatureSensor...
Tip:
When it comes to working with dates (such as ts), you should declare it directly as Date instead of String and then set the convenient dateDecodingStrategy. In your case, it should be a custom one, you could find how to do it in this answer.
Based on the above description, there is the full implementation:
QUESTION
I'm using flask to create api server, which get post of json data. I used following this tutorial to create the code: from flask import Flask from flask import request
...ANSWER
Answered 2019-Mar-29 at 09:45When you use print() it simply prints everything to console, so check it for you running app to see printed output. What you return ('JSON posted') from your view is what gets sent back to the client as a response.
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