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FreeRTOS Thread Pack: Create Multithreaded IoT Code The Easy Way

by honey the codewitch

Using a popular RTOS to enable easy multithreading on your IoT gadgets

My Understanding of ArcNet Protocol

by johnniealan

ArcNet Protocol basics

Development of mobile applications on Backend as a Service platforms

by tomm13

Comparison of Firebase and SynergyKit while developing chat application

NetMQ+ RX (Streaming Data Demo App 2 of 2)

by Sacha Barber, Doron Somech

Small demo app showing how to create a streaming Publisher / Resilient clients using NetMQ + RX

Latest Articles

FreeRTOS Thread Pack: Create Multithreaded IoT Code The Easy Way

by honey the codewitch

Using a popular RTOS to enable easy multithreading on your IoT gadgets

Use Both Cores on an ESP32: Easy Synchronization with Esp32SynchronizationContext

by honey the codewitch

Take a page from .NET and enjoy an easy way to safely pass information between threads on an ESP32

My Understanding of ArcNet Protocol

by johnniealan

ArcNet Protocol basics

ASP.NET Core: Building a Real-Time Online Poll System with SignalR 2, jQuery, EF Core, Core MVC and Web API 2

by Vincent Maverick Durano

This series of article will walk you through on building a simple Online Poll System with real-time updates using SignalR 2, jQuery, Core EF, Core MVC and Web API 2.We will take a look at how each of the technologies will be used within ASP.NET Core 1.0.

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Realtime

Time Critical Application Migration from MFC

15 Jan 2015 by CPallini

Assuming 'code reusing' is not a requirement (otherwise you probably would have already followed the MFC 11 migration path), I would do some tests toward the fully managed path (that is all C#) with option 4 (that is C# GUI, C++ for time critical components) as plan B.

Time Critical Application Migration from MFC

15 Jan 2015 by Sergey Alexandrovich Kryukov

I rather agree with Solution 2. My answers:1. Quick Questions & Answer might be not the most suitable place for such a wide problem, but main idea could be: don't assume you migrate; you create the system from scratch, because the technologies are very different. Consider it as a benefit:...

FreeRTOS Thread Pack: Create Multithreaded IoT Code The Easy Way

27 Feb 2021 by honey the codewitch

Using a popular RTOS to enable easy multithreading on your IoT gadgets

multi-threading

Time Critical Application Migration from MFC

15 Jan 2015 by Shmuel Zang

It's depends on how much your core implementation is coupled with your UI. For instance, if you use a window handle to the window that the graphic should be paint on, in your core code (not a recommended pattern but, I already saw an implementation like this), creating UI with a new platform can...

My Understanding of ArcNet Protocol

3 Aug 2017 by johnniealan

ArcNet Protocol basics

What are the technical features of embedded C programming

15 Mar 2022 by Greg Utas

The term "embedded system" can refer to anything from a toaster to a special purpose server whose source runs to tens of millions of lines of code, so it's hard to say much without knowing what kinds of embedded systems you mean. That said,...

operating-systems

Time Critical Application Migration from MFC

15 Jan 2015 by Vitaliy Kunin

I have a multi-threaded windows desktop application that runs on a standard PC motherboard. It collects images from cameras , displays them onto the UI, performs image processing on these pictures, also displays the results onto the UI and sends information via the Serial port to the PLC to...

Should we rewrite our software from scratch?

15 Feb 2017 by Dave Kreskowiak

Quote:A manager (who is not technical) has said the firmware is too buggy and needs to be rewritten from scratch using a methodology like Misra. They say that by doing this the code will be bug free and we will have more robust and maintainable code.Ummm... there is no such thing as "bug free"...

What are the technical features of embedded C programming

15 Mar 2022 by CHill60

This is a quick answers forum and your questions can't really be answered quickly. I recommend acquiring a good book on the subject e.g. Programming Embedded Systems in C and C++: Amazon.co.uk: Michael Barr: 9781565923546: Books[^] or Embedded C...

operating-systems

Does gartle.rtd or market.rtd return dividend amounts?

19 Mar 2023 by Richard MacCutchan

You should ask the question at Getting Started with MARKET.RTD - stock-data-solutions.com[^]; this has nothing to do with programming.

How can use SignalR Hub at multiple partial view page?

8 Apr 2014 by MinChanSike

I have a sample project with SignalR and test for real time information.In my project is entry data from some page and show list data at one page in real time.It okay with SignalR when I use Multiple Form/View ( Entry Form, Listing Form ).But I got issue when I use Single Form/View with...

Using the Sync gem to make restful Rails app real-time

14 Dec 2014 by Member 10789046

I've made a functional mini social network app in Rails. I'm using the Sync gem in order to make my app realtime so that when a user posts something, it'll immediately show up on their home feed. I feel like I'm extremely close to making this work. The form works and there are no run-time errors...

Best web app developing language to write a client/server app for Bingo game scenario

25 Feb 2015 by ninodago

Good morning,I have the following scenario to develop.Let's start from the assert I have low experience in web development, I am more focused towards desktop programming, but this could be an advantage, because I have no prejudices towards any solution.The scenario to model is this. We...

Best web app developing language to write a client/server app for Bingo game scenario

27 Feb 2015 by Matej Hlatky

Hi Nino,Just in short, there is no right answer to question „Which is the best programming language to model this scenario“. Some may say Node.js, Ruby, Python ... or any other language, but my recommendation is to stick with the programming language you know best – .NET or Java (as you...

embedded system software + USB

4 Mar 2015 by nadim_bh

* implementation of a generic USB protocol for interfacing product:how can i create a driver?Is there to tricks or doc that will help me in this?Device Details: -TWR-k60f120M, ARM cortex-m4-eclipse kepler C/C++-GNU Tools ARM Embedded -OpenOCD-Real time OS:...

embedded system software + USB

4 Mar 2015 by Richard MacCutchan

This question is far too broad for a Quick Answers forum, and it is impossible to provide much useful information. You need to do some research into USB protocol, embedded systems and drivers. You will also need to study the hardware of the device(s) you intend to support.

Development of mobile applications on Backend as a Service platforms

2 Jul 2015 by tomm13

Comparison of Firebase and SynergyKit while developing chat application

The design about real-time data reception,treatment and save

23 Aug 2015 by CPallini

It is difficult to outline a winning strategy based just on the details you posted. Possibly you might just improve the performance of your code (fine tuning it). Possibly the algorithm could be actually parallelized to exploit the multicore (I assume it is) CPU. Possibly, lastly, you simply...

Several problem with chart

7 Oct 2015 by Jesús Álvarez

I have several problems when i have a very large number of point on my series in my chart area, the problem is my GUI block, but chart point are ploting perfectly, my progress bar and my timer (elapsed) stop running, but qhen a i resize my form to small resolution, it work perfectly.(sorry...

Several problem with chart

7 Oct 2015 by phil.o

I'm not really sure, but I have the impression that you are adding the points one by one.Maybe you could try to add them all at a time, enclosing the add operation between chart1.Series.SuspendUpdates(); and chart1.Series.ResumeUpdates();.

Several problem with chart

21 Oct 2015 by Jesús Álvarez

The problem was that the datareceived event and this.Invoke("other event"), block I because the read operation and paint operation (in chart), fill all the task queue and the UIthread never keep alive between that, result the GUI dont refresh until datareceiver is working.I need to...

How to show livedata in sqlserver to chart via ASP.NET telerik

17 Oct 2016 by misaqyrn9677

Hello Dear All ProgrammingI Want Showing Data In SqlServer (Real-Time) But When Use Time Its Not WorkingNote : You This In My Function Loading Data in DataBasePlease Help MeBy Regards Yarian

How to show livedata in sqlserver to chart via ASP.NET telerik

17 Oct 2016 by Vincent Maverick Durano

You can try applying the concept of SqlDependency with ASP.NET SignalR: Database Change Notifications in ASP.NET using SignalR and SqlDependency – TechBrij[^] Or you could schedule a frequent push on the server just like what is demonstrated here: Integrating with ASP.NET SignalR push...

C# draw rectangle with negative heigth

7 Dec 2016 by Dave Kreskowiak

It would seem kind of obvious to just check to make sure the height is greater than 0 before drawing the rectangle.

How do I real time face and eyes tracking in C# aforge, does it support?

14 Dec 2016 by Member 12752611

Please Guide me: I am going to make my Final year project in image processing using the concept ofreal time video processing. Project will contain the following Task:capture the video in real time.track the face and eyes pupal in real time.if eyes are closed then alarm.What I...

image-recognition

image-processing

Can signalr be used with ANY database?

12 Feb 2017 by jim rock

I need to implement push technology in my application. I need to display data on the web page as it gets inserted in the database in real time. I am using ASP.NET MVC with IBM Informix as backend database. I am trying to figure out if it is possible to use signalr with Informix? Does SirnalR...

Can signalr be used with ANY database?

12 Feb 2017 by Karthik_Mahalingam

Signal R[^] is just used for Real time communication between Server (ASP.NET) and Client(Web Browser). It has nothing to do with the database.You can use any Database engine as backend.

Should we rewrite our software from scratch?

15 Feb 2017 by nv3

This is difficult to answer without taking a look at the code. From what you describe there are two engineers working on the code more or less permanently. So they apparently do understand the code - perhaps not in all parts and perhaps wishing they had invested more into documentation and code...

Should we rewrite our software from scratch?

15 Feb 2017 by Patrice T

Quote:Should we rewrite our software from scratch?We are at the worst place to give you informed advices because we don't have details on that code and its problems. The 2 engineers working on it probably have a better idea on the question.Quote:They say that by doing this the code will be...

How do I write real time data to a csv file using a bufferedwriter

15 May 2018 by Member 13710355

I have a project where I have used an Arduino ultrasonic sensor and have connected it to a java program which reads the values produced by the Arduino ultrasonic sensor via serial communication, the java program produces a real time chart plotting values that are being read from the Arduino. I...

How to fatch udp data on excel

8 Jun 2019 by Hastimal Suthar

can any one tell me how to receive NSE udp data on ms excel from Thanks What I have tried: can any one tell me how to receive NSE udp data on ms excel from Thanks

How to fatch udp data on excel

8 Jun 2019 by Richard MacCutchan

See How to Receive NSE Feed Using UDP[^]

C# draw rectangle with negative heigth

30 Aug 2019 by Member 13482508

I made this function to sort the rectangle so that it will draw. private Rectangle SortedRect(Point P, Size S) { if (S.Width

How to display the countdown time for all users

26 May 2020 by Member 14845028

I am building a flutter auction application, I am stuck at the countdown time of an auction product so I use firebase realtime database. I have to make sure all users see the countdown at the same time. Please help me whether it's just a keyword...

Communicate with a delta motion controller in real-time

7 Mar 2022 by Member 15535708

I have been tasked with creating an interface between a delta motion controller which is attached to a servo valve. I want to read back the position in real-time. I started coding in C# and even though the loop is running continually with no...

Communicate with a delta motion controller in real-time

7 Mar 2022 by Gerry Schmitz

You can't realistically sample "continuously and without delay". You need to determine the frequency / cycle time of the device, and establish a comparable "frame rate" / cycle time for your app. Even if the source is "continuous", your app...

What are the technical features of embedded C programming

15 Mar 2022 by Member 15314815

I have some C, C++ programming skills which can be utilized for building embedded applications in real time. I am working on learning C, C++ programs for developing embedded applications in real time. As I do not have full time work experience in...

operating-systems

Can thinkorswim graph study calculations for the current bar be accessed?

18 Aug 2022 by Member 14651650

For example, ThinkOrSwim graphs permit multiple studies - like RSI, MACD, Stochastics, etc. Given the chart is showing minute bars, the "current" minute bar is redrawn with each trade. Also, each study is recalculated and is redrawn for the...

Web socket vs web transform vs socket.io to get real time data?

25 Oct 2022 by Dave Kreskowiak

You're going to have more load on the server no matter what you do. The data is always going to come from the server. You either start up a timer in your client javascript and call an API method to get the data, or you can setup a SignalR...

WebSocket-server

WebSocket-client

NetMQ+ RX (Streaming Data Demo App 2 of 2)

14 Dec 2014 by Sacha Barber, Doron Somech

Small demo app showing how to create a streaming Publisher / Resilient clients using NetMQ + RX

'enRoute': Real-time NY City Bus Tracking Web App

6 May 2015 by DrABELL

Web Application capable of NY MTA bus routes and stops monitoring in real-time/low-latency mode.

WPF Automated Trading Application

14 Dec 2014 by Martin Arrivets

WPF automated trading application

SignalR + RX (Streaming Data Demo App 1 of 2)

15 Dec 2014 by Sacha Barber

Small demo app showing how to create a streaming Publisher / Resilient clients using SignalR + RX

ASP.NET Core: Building a Real-Time Online Poll System with SignalR 2, jQuery, EF Core, Core MVC and Web API 2

5 Aug 2016 by Vincent Maverick Durano

This series of article will walk you through on building a simple Online Poll System with real-time updates using SignalR 2, jQuery, Core EF, Core MVC and Web API 2.We will take a look at how each of the technologies will be used within ASP.NET Core 1.0.

Use Both Cores on an ESP32: Easy Synchronization with Esp32SynchronizationContext

25 Feb 2021 by honey the codewitch

Take a page from .NET and enjoy an easy way to safely pass information between threads on an ESP32

multi-threading

Background Cycle Timing

20 Aug 2014 by sgoleary

High Resolution Timer EventArg Class for timing background tasks.

Time Critical Application Migration from MFC

15 Jan 2015 by nv3

It is not so much the CPU load that I would fear in a managed environment, but the unknown interference of the garbage collector.Splitting the app into a managed front end and a C++ non-managed backend gives you nice options for the UI (Windows Forms), but you are introducing some complexity...

Advanced CSS3: pseudo-icons made of HTML5 div Elements

8 May 2015 by DrABELL

CSS3 technique utilizes HTML5 div elements to produce compact pseudo-graphics

web_development

What is real time programming?

7 Dec 2015 by Kornfeld Eliyahu Peter

Let me Google that for you...[^]

How Memory map is done in a processor

3 Aug 2015 by Afzaal Ahmad Zeeshan

This question can be better answered by reading an entire guide or a book about memory mapping in ARM architecture. Trying a quick Google can bring about 3+ books for this topic that can provide you with details on how this works, Google search results[^].Try the books found on that...

What is real time programming?

7 Dec 2015 by Sergey Alexandrovich Kryukov

I think you ask this question because of the the comments on one of the answers or questions, where one member and myself commented that SignalR has nothing to do with real-time, and I added that there are many different unrelated and confusion uses of the term "real time".You can read about...

Multiple tasks at the same priority

1 Aug 2015 by chandrAN2&

In µC/OS-III Features with Longer Critical Sections section , it is mentioned that "Multiple tasks at the same priority" will create longer critical section.Below is the reason mentioned for the same"Although this is an important feature of µC/OS-III, multiple tasks at the same...

What is real time programming?

7 Dec 2015 by Anisuzzaman Sumon

Sir,I am Confused,Please help me prviding the answer following questions.What is SignalR?And What is real time web apllication.What is the relationship among them.Can it possible to write realtime application with Manage code?

Should we rewrite our software from scratch?

15 Feb 2017 by bhagman

We have a project written in C. It’s about 70K lines of code and has been written over ten years. Features and options have been added onto the original functionality over the years. The application is real time firmware to run on a microcontroller and it has some very carefully crafted...

Web socket vs web transform vs socket.io to get real time data?

25 Oct 2022 by ravithejag

I want to implement a solution where my web page has to be refreshed whenever there is an new entry in our Influx/SQL Database. In current scenario we are refreshing the data every 5 seconds over WEB API built on C# , due to frequent calls to...

WebSocket-server

WebSocket-client

The design about real-time data reception,treatment and save

23 Aug 2015 by JinxLeader

Hello, everybody. I have a problem about The design about real-time data reception,treatment and save. I have a read(cBuf,length) function to receive real-time data.I make a core exclusive thread with SetThreadAffinityMask(). In this thread, it have the read function and treatment etc....

C# draw rectangle with negative heigth

30 Aug 2019 by kursatdemir58

Hello, I ve been googling for hours. Please help me! Im having trouble with real time rectangle drawing, Let's say 1st second I want to draw y1 to positive heigth, in 2nd second y1 to negative heigth. But DrawRectangle doesn't except negative values and doesn't draw. I show in drtail in picture...

Which technology is faster in sending data websocket, signalr, WCF or sqlchangenotification

20 Sep 2017 by ZhEaIsNsAaBn

I wanna to build a stock exchange application : which is a form have datagridview and its data change in it immediately (reel-time) - it will be something like this => [

Does gartle.rtd or market.rtd return dividend amounts?

19 Mar 2023 by Hankster2

Using market.rtd I am able to get dividend date and ex-div date. But not the dollar amount of the dividend. Is there a formula for that? Or other method to automatically get that info when a dividend has been announced? What I have tried: I'm...