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by enedil
Thu Aug 13, 2015 10:04 am
Forum: C/C++
Topic: Talking between Programs
Replies: 6
Views: 1948

Re: Talking between Programs

Thanks for the replies Dougie and Enedil, I tried installing Mosquitto on the RPI2 model B and there's some dependency errors, apparently something called "squeeze" isn't supported? I think what I'm after is a kind of websocket. As Enedil suggested, a TCP websocket seems to be the easiest...
by enedil
Tue Aug 11, 2015 8:10 pm
Forum: General discussion
Topic: best choice language and IDE for raspberry app
Replies: 8
Views: 2094

Re: best choice language and IDE for raspberry app

abcdcadb wrote:I'm worry that it isn't enough popular to develop later.
If a programming language is not the most popular one (like Java), it does not mean it is not popular at all.
Almost every programming language that runs flawlessly on Unix supports sockets.
by enedil
Tue Aug 11, 2015 7:58 pm
Forum: Other programming languages
Topic: posting sensor data to Rails app
Replies: 7
Views: 2076

Re: posting sensor data to Rails app

The Ruby version may look simpler but: I presume that "puts" in Ruby hangs everything up until it has completed. A bit of a pain if you want to be doing other things at the same time. Correct me if I'm wrong. I don't see any possibility for error checking in that example. Not quite true -...
by enedil
Tue Aug 11, 2015 2:27 pm
Forum: Other programming languages
Topic: posting sensor data to Rails app
Replies: 7
Views: 2076

Re: posting sensor data to Rails app

Certainly curl is a great tool that any one messing with web protocols should know about. Our poster did say "Preferably using ruby or javascript" though. Of course this can also be done easily in Python or Perl etc. Less easily in C/C++. I noted it. I think RheShaGan said it since (s)he ...
by enedil
Tue Aug 11, 2015 12:15 am
Forum: Other programming languages
Topic: posting sensor data to Rails app
Replies: 7
Views: 2076

Re: posting sensor data to Rails app

Use the power of Shell!
Curl comes to mind:
http://superuser.com/questions/149329/w ... st-request
No need to write a wrapper code.

Get curl with apt:
sudo apt-get install curl
by enedil
Tue Aug 11, 2015 12:08 am
Forum: C/C++
Topic: Talking between Programs
Replies: 6
Views: 1948

Re: Talking between Programs

Just set up TCP sockets.
by enedil
Wed Jul 29, 2015 10:08 am
Forum: Python
Topic: Datalogging
Replies: 6
Views: 1362

Re: Datalogging

Why not using syslog?
by enedil
Sat Jun 13, 2015 10:51 pm
Forum: General programming discussion
Topic: Web Development on the Pi
Replies: 12
Views: 20200

Re: Web Development on the Pi

Get GitHub Atom.
by enedil
Sat Mar 21, 2015 3:32 pm
Forum: C/C++
Topic: exporting from c# to excel [obsolete]
Replies: 6
Views: 1627

Re: exporting from c# to excel

It is C#. It runs on .NET virtual machine. It doesn't contain CPU-specific code.
by enedil
Sat Mar 21, 2015 3:30 pm
Forum: General discussion
Topic: Service for RPi Only
Replies: 26
Views: 3784

Re: Service for RPi Only

It doesn't matter. Since it is a web service, user can input fake data and you can't verify it.
by enedil
Fri Mar 20, 2015 6:48 am
Forum: Other programming languages
Topic: New way to write RPi apps
Replies: 1
Views: 831

New way to write RPi apps

Hi!

I just found that project:
http://artoo.io/documentation/platforms/raspberry-pi/
It's an easy way to write apps for devices (including Raspi) in Ruby. If you look at the bottom of the site, there are 2 links to similar frameworks for JavaScript and Go.
by enedil
Thu Mar 19, 2015 7:08 pm
Forum: Networking and servers
Topic: Web based user interface
Replies: 13
Views: 5637

Re: Web based user interface

RogerW wrote:Thanks for that. Websockets do look interesting. Google seems to bring up several references to Python implementations. Is there a prefered one for use in the server?

Roger Woollett
I meant https://github.com/joewalnes/websocketd
by enedil
Thu Mar 19, 2015 2:19 pm
Forum: Networking and servers
Topic: Web based user interface
Replies: 13
Views: 5637

Re: Web based user interface

Use Websocketd. Easy to use, language-agnostic.
by enedil
Wed Mar 18, 2015 8:42 pm
Forum: C/C++
Topic: X11 programming?
Replies: 24
Views: 5178

Re: X11 programming?

Generally, bad idea.

Learning straight X11 toolkit is time-consuming. Wayland is knocking Open Source's door.
by enedil
Thu Mar 05, 2015 6:26 pm
Forum: General programming discussion
Topic: Which language?
Replies: 1
Views: 592

Re: Which language?

Hey! C++ also has multithreading built-in.
Read the reference: http://en.cppreference.com/w/cpp/thread/thread

If you feel good with C++, take it as your programming language for this project.
by enedil
Thu Mar 05, 2015 1:36 pm
Forum: Troubleshooting
Topic: sudo anything gives:- cannot execute binary file
Replies: 13
Views: 3574

Re: sudo anything gives:- cannot execute binary file

What gives

Code: Select all

ls -l /usr/bin/sudo
?
by enedil
Thu Mar 05, 2015 7:18 am
Forum: C/C++
Topic: Eclipse and GDB - GDB terminates immediately
Replies: 12
Views: 6099

Re: Eclipse and GDB - GDB terminates immediately

To all you having problems with CygWin. Altrough it may be handy to get all stuff done on Windows, when interacting with Linux boxes, it's really easier to install a stand-alone Linux distribution on your laptop/desktop. And if you reall don't want to, grab VirtualBox , download something easy like ...
by enedil
Thu Mar 05, 2015 7:09 am
Forum: Beginners
Topic: DOS EXECUTABLE FILE
Replies: 12
Views: 5306

Re: DOS EXECUTABLE FILE

can i use wine for microsoft applications such auto run exe. I'm trying to use globe usb wireless tattoo broadband but won't work because the application was with the microsoft programs. No, you can't. Apparently, it was compiled for Intel processors. Raspi works on ARM. The other reason - you can'...
by enedil
Wed Mar 04, 2015 11:13 am
Forum: Advanced users
Topic: Mobile OS
Replies: 5
Views: 3005

Re: Mobile OS

You can grab Firefox OS.
by enedil
Tue Mar 03, 2015 6:37 pm
Forum: C/C++
Topic: Performance difference on PI2
Replies: 12
Views: 2850

Re: Performance difference on PI2

I don't know what are you using, but you should install package clang and run compiler

Code: Select all

clang++ file.cpp -o file
by enedil
Mon Mar 02, 2015 10:44 am
Forum: Beginners
Topic: Compiling and Cross-Compiling question
Replies: 4
Views: 808

Re: Compiling and Cross-Compiling question

On Ubuntu and probably other distributions, there is a precompiled package containing toolchain for GNU/Linux ARM named gcc-arm-linux-gnueabi
by enedil
Mon Mar 02, 2015 9:43 am
Forum: General discussion
Topic: Hacked Pi
Replies: 9
Views: 4326

Re: Hacked Pi

Hi!

Check /var/log/apt/term.log.
Set different port for SSH.
Delete user pi.
Disable login via ssh for root.
Disable login via ssh for every user with sudo - use su to log in to those accounts.
by enedil
Sat Feb 28, 2015 6:43 pm
Forum: Python
Topic: Query about python programming
Replies: 3
Views: 768

Re: Query about python programming

Maybe shell script?

Code: Select all

#!/bin/sh
while ((1))
do
  python3 script.py
done
by enedil
Sat Feb 28, 2015 1:40 pm
Forum: General discussion
Topic: OverView of available Disk Space
Replies: 3
Views: 670

Re: OverView of available Disk Space

And if you want graphical tool, install baobab -

Code: Select all

sudo apt-get install baobab
by enedil
Sat Feb 28, 2015 1:16 pm
Forum: Français
Topic: USB en tant que disk pour mon pi.
Replies: 13
Views: 1305

Re: USB en tant que disk pour mon pi.

Quelle systeme de fichiers sur ton clef USB? Si Fat32 ou NTFS, tu ne peux rien faire - ces systemes ne supporte les permissions des fichiers de Linux.

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