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so I know a little bit about writing Linux kernel device drivers. And I wrote a device driver for my game controller. The problem is, I want to integrate my device driver to ROS. How should I do that? I don't want to use the pre-existing packages for ROS. And I tried to look for the documentation but to no avail. So, Any help would be appreciated! Thank you!
ROS is a strongly-typed messaging system, that wraps the real math/code up, to provide a generic interface via topics and messages. Write your code, write a ROS node, call your code from the ROS node, and define the publishers/subscribers/interface you want other nodes to talk to you by.
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I'm pretty new to everything related to hardware.
I am searching for a way to connect PWA to POS hardware, like Scanner or cash drawer. How can I access these via PWA or JavaScript?
The hardware you intend to use need to use webUSB api (for e.g. "Canon DR-M160II scanner" uses one), which will of course depend on the implementation by the hardware vendor.
You can either check if there's any compatible hardware already available and then for coding your PWA accordingly, you can refer to this web.dev article.
If you strictly need to use the existing hardware and can get the corresponding hardware vendor to customize it, you can ask them to refer to this article on web.dev.
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I'm trying to build a swift app that would allow a user on one side to draw an image that will be updated in nearly real time on the other user's device, somewhat as if they were drawing on a whiteboard in person.
Anyone have any tips or places where I should start? I'm relatively new to swift. Thanks for your help.
This requires a persistent line of communication between your mobile device(s) and your server. Websockets allow this type of communication. I haven't implemented them myself so I can't provide implementation details, but there are plenty of resources available online.
Sockets with Swift
Websockets Tutorial
I think Realm is exactly what you are looking for.
Real time collaboration in as little as 10 lines of code
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When creating a netcat-like program how do I get that file onto a server? It seemed like the reason for creating a netcat-like program was to be able to use it to run commands, get files and connect to ports.
So it seems like it's necessary to have it on the server in order to put it on the server?
I'm probably just really confused.
You'd use another program to load it initially. For example, you might ssh in.
It is also possible that you'd have physical access to the server and could install the first file transfer program manually, or as part of the intial OS install.
Not all interactions have to be done remotely. Otherwise, your intuition would be right -- we'd have a chicken and egg problem.
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I am thinking the build my own home system that can do basic tuning channels or view lineup for my Comcast cable TV, like xfinity TV App does.
I am wondering if someone know Comcast open their API? or is there a way that can do it?
Thanks
Lewis
Most likely, you'll have to program against a 3rd party system that uses a CableCard.
To my knowledge the only way you can do something like this is to write a plug-in for Media Center on Windows with a CableCARD. Take a look at the Windows Media Center SDK Overview and see if it has the functionality you're looking for.
Nope, everything I've seen suggests that it's a private API. Which makes sense, they probably want you to have to use their services instead of creating your own.
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I'm currently doing an internship in a medical laboratory
They want to buy Ipad and medical device connected to it
example: diabet tester http://www.ibgstar.us/
blood pressure monitoring system http://www.ihealth99.com/
I'm wondering if I can code my own application that gets the data from the medical device and then handle it?
thks for your answers
I think they're some step to success it .
At first you need a Hardware solution like said "Mundi".
You need to grab data from device and store them somewhere accessible (like in a BDD with online acces).
And then the iPad application just have to connecte to the data-Source and play with it
The short answer is YES.
There are many ways to get the data into the app via a network. If you would like to read from the device directly, you would have to additionally find a hardware solution.
I'm not sure this applies, but I've seen some really cool medical apps written using Harvard's SMART project. They provide a simple but effective framework, which is independent of the Hospital Information System (like Cerner, Epic, VistA).