I have written a PyQt Application that runs on my Raspberry Pi. Now I want to take it a step further and access the Application from other devices while it is running on my Pi. The Application has to be interactable, see the images.
I imagine I would have to setup the Pi as a Server (There's tutorials on the Pi website), but how do I actually access the GUI then? It's supposed to be like a remote connection but just through a web browser without installing third party software on my device.
you are thinking of pyqt as a presentation layer. it is not that.
you would have to rewrite your app as a client-server app, separating the logic from the presentation.
google for "client server programming model" for some idea's
good luck
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Im making an app that multiple players can connect to, but im brainstorming the best approach.
Im going to be using electron for the interface and then be able to use other computers to log in to website to join the game with multiple players.
I will use sockets to connect to each player, but what i am trying to figure out is whats the best approach for the interface.
Should i use express with electron to somehow connect to the same website the players are on?
Is it possible to make the electron app start up a server and have my website direct to the computer that is running the electron app?
Or my other option was to just continuously upload and download from a database, but I feel like that would not be very efficient.
You're on the right track. I would suggest using a WebSocket based server / client architecture.
The server application is continuously running and handles inter-player communication as well as providing a database. The database could be integrated in the server application as a starting point, and, depending on your needs concerning scalability, be extracted as a standalone service in the long run.
Client applications could then come in many forms (a website, a desktop application, a mobile app). Using electron is a great way to enable cross-platform desktop application development that is adaptable to any of these scenarios, possibly also enabling to extract the contained web application as either a hosted website or even mobile application (using, for example, react-native or nativescript).
Good luck!
I almost understand how to send message device to device.
But, I don't know how to do this with pc.
I tried to find it, but the most curious thing is,
'How can I make server side program on pc?'
I know how to provide web service by server, but for that, I have to make environment like APM on PC.
But, that's not what I want. Because it means, someone who want to use that program should make environment like that I have.
Actually, I tried to make remote controller application like X-remote...
That kind of applications, just download program and install it on pc, then pc act as a server.
what is it made from? C#? php? Java swing?? I have no idea about that...
Device is Tizen, so we will make a web app.
How can I make pc program like other remote application?
It seems that right now you cannot emulate Bluetooth on Emulator. As far as I remember when developing some sample applications, we have been using some fixed data. You could also write whole application using simple PHP server, and change the communication from HTTP to Bluetooth at the end of development.
Please analyze BluetootchChat sample application in the SDK, it should give you an overview about the BT communication in JavaScript.
Remember about the privileges in config.xml file.
I've received a project from someone that includes an Arduino (Uno) board with some sensors and lights with an USB cable and a documented protocol for communicating with this board through a COM port. It works fine with some existing code, but I need to port the whole project to a Windows RT environment using an ARM processor and including the Metro interface for the application. And it's going to be completely rewritten...
First of all, my Windows RT device does have an USB port so it can connect to the board. But the challenge is to communicate with the board to read out the sensors and manipulate the lights and I happen to have problems finding some useful libraries, tutorials or other information about how to make these work together.
This project works fine with other Windows versions, though. I just need something specific for Windows RT/ARM/Metro.
Currently it is not possible to do this on Windows RT, and here is an explanation why. As a work around I am using a standard full screen WPF application in combination with the Surface SDK for touch enable UI components. The obvious disadvantage here is that you cannot publish the app to the store.
I think that we should actually try it on a real machine instead of the rt. The surface rt is basically for documents and the internet.
You'd be better off trying all of this with a Toshiba 2032.
A PDA from about 2003.
Can someone please point me in the right direction to create a Mac/PC server app that runs in the background and connects to an iPad app over the local WiFi network?
No matter how I phrase a search on Google it just brings up various apps like Remote Mouse and whatnot and no tutorials or even a hint of where to start.
I just need to send simple commands from iPad to computer over local wifi. A point in the right direction and I can likely fill in the blanks.
Thank you.
Thomas
EDIT: I am using web languages for the iPad version that I will build as a native app using open source tools.
OK, then. It actually depends on what you really need. I made the assumption you need real-time and perhaps binary data transfer.
Your best bet is to write your server application using standard C or C++ so it compiles on both as simply as possible.
If you want to avoid all the burden of writing a protocol for service discovery or asking users to enter the ip address of your server you will use a mDNS implementation for your server and your iPhone app.
If I were you I would try bonjour: http://www.apple.com/support/bonjour/
on iPhone You could start here: http://developer.apple.com/library/mac/#documentation/Networking/Conceptual/NSNetServiceProgGuide/Articles/PublishingServices.html
Once you have your sockets you will have to implement a networking protocol between your server application and your iPhone app.
You will have to be careful about byte ordering and little subtle problems with latency, disconnections and other problems inherent to networking and WiFi.
In windows you will want to register your application as a service and in Mac OS X/UNIX you'll probably want to deamonize it.
Good luck!
I know since the 3.0 SDK we can use accessories, so my question is simple, what is the process to make an iPhone app and PC (or Mac) app interact, using the USB ?
I don't ask you any code, but just the paths and the keys for making that work.
Have I to access the iPhone disk through SSH and work with files ?
Or can I send data from the iPhone app and intercept (get) it on the PC app (and send data from PC to iPhone) ?
Thanks, and if this question is stupid, just tell me, I didn't find on Dev Center (I don't really know what I have to looking for...) !
Edit : I read some news from Microids, they will synchronize PC and iPhone games (i.g here), and somewhere (I can't find it again) they say connecting the iPhone on the USB, so I think this is possible
USB access on the phone is only supported via the External Accessory Framework. You cannot hook the iPhone up to arbitrary USB devices, the devices actually have to support the EA protocol. You can get more details about it via the Made for iPhone program.
Other than that there is no USB access available on to applications.
You want the External Accessory Framework. Having said that, I'm not sure that Apple's intention was for you to communicate with an application on a PC/Mac. It's really for talking to accessories such as iPod docks, remote controls, etc. Apple may not allow an application that talks to a PC in this manner in the App Store.
You might be interested in ssh_relay (earlier called iphone_tunnel).
There is a /System/Library/Lockdown/Services.plist on your iPhone and you can start any such services via AMDeviceStartService and then communicate with it.
The ssh_relay demonstrates how to do that by having a simple port forwarder as a service on the iPhone site and the client application on your PC, so you can forward any local iPhone port to your PC. This is not exactly what you wants here (it is handy in the case you have already another service running on the iPhone which communicates via simple TCP and you want to access that; for example SSH) but based on this example, it should be straight-forward to have any communication between the service (in Services.plist) and your PC.