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by ghans
Fri Jun 22, 2018 5:15 am
Forum: General discussion
Topic: Connecting M.2 Module to Raspberry Pi
Replies: 6
Views: 178

Re: Connecting M.2 Module to Raspberry Pi

Th Raspberry Pi does not support PCI, SATA or USB 3 (USB 2 works). Which bus is being used internally by your M.2- sized module ? No PCI device will ever properly work with any existing Raspberry Pi.

ghans
by ghans
Thu Jun 21, 2018 5:59 pm
Forum: General discussion
Topic: Convert Raspbian Stretch Lite to video-output
Replies: 13
Views: 328

Re: Convert Raspbian Stretch Lite to video-output

There are VNC servers which create virtual desktops and there are VNC servers which control
the real desktop visible on the video output.

RealVNC belongs to the latter category, it is what you want.

ghans
by ghans
Thu Jun 21, 2018 4:14 am
Forum: Graphics programming
Topic: 3d graphics libraries that run on the Pi 2 that aren't slow?
Replies: 15
Views: 335

Re: 3d graphics libraries that run on the Pi 2 that aren't slow?

Pi3D uses OpenGL ES. "Real" OpenGL support for the Pi is new and not that well tested anyway.

ghans
by ghans
Wed Jun 20, 2018 9:33 pm
Forum: Python
Topic: How to simultaneously send and receive data between a laptop and raspberry pi?
Replies: 4
Views: 128

Re: How to simultaneously send and receive data between a laptop and raspberry pi?

I think you should just use two threads, one sends data and other only recieves.

ghans
by ghans
Wed Jun 20, 2018 8:38 pm
Forum: Bare metal, Assembly language
Topic: Assembly / C IDE that can remote compile / debug / run
Replies: 2
Views: 107

Re: Assembly / C IDE that can remote compile / debug / run

Netbeans has a C/C++ add-on. Remote deploy and run seems to work so far. Haven't tested
debugging yet. I doubt you will find something for bare metal, but the solutions targetting Linux might be a starting point ?

Make and GCC have to be installed on the target for this.

ghans
by ghans
Wed Jun 20, 2018 4:30 pm
Forum: Beginners
Topic: Connecting to Windows
Replies: 11
Views: 278

Re: Connecting to Windows

You have not said

1) HOW you tried to connect multiple Linux systems (including Raspberries) to your NAS
2) HOW you made sure it isn't working simultaneously

There is something you are not telling us.

ghans
by ghans
Wed Jun 20, 2018 4:44 am
Forum: Beginners
Topic: Getting started - secure?
Replies: 16
Views: 358

Re: Getting started - secure?

nano is a commandline text editor. Save with CTRL-O and exit with CTRL-X.

This will only work if you have write access to this file in the /etc subdirectory , i.e. have properly become "root" beforehand.
That is why you need to type "sudo nano ...."


ghans
by ghans
Wed Jun 20, 2018 4:29 am
Forum: Graphics programming
Topic: 3d graphics libraries that run on the Pi 2 that aren't slow?
Replies: 15
Views: 335

Re: 3d graphics libraries that run on the Pi 2 that aren't slow?

All those engines support the Pi GPU:

https://urho3d.github.io/
http://www.raylib.com
https://github.com/tipam/pi3d

Most other engines do not explicitly target the Pi and will likely have horrible performance and will be diffucult to build from source, or both.

ghans
by ghans
Wed Jun 20, 2018 4:15 am
Forum: Beginners
Topic: Connecting to Windows
Replies: 11
Views: 278

Re: Connecting to Windows

Linux supports Windows File Sharing quite well. There used be some NAS which only used proprietary protocols but that was a decade ago ?

Your NAS does support Windows File Sharing (SMB/CIFS) , doesn't it ?

ghans
by ghans
Tue Jun 19, 2018 12:50 pm
Forum: Deutsch
Topic: Maximale Versorgungs-Spannung
Replies: 4
Views: 145

Re: Maximale Versorgungs-Spannung

Prüfe mal, ob dein USB-Kabel im Betrieb warm wird...

ghans
by ghans
Tue Jun 19, 2018 5:07 am
Forum: Advanced users
Topic: What are the eMMC in RPI 3B for ?
Replies: 1
Views: 132

Re: What are the eMMC in RPI 3B for ?

The Raspberry Pi model 3 contains no eMMC module. It boots from off-the-shelf SD cards
by default.

There are two generations of Compute module. The first generation uses Raspberry Pi 1 technology, the second generation uses Raspberry Pi 3 technology.

ghans
by ghans
Mon Jun 18, 2018 1:52 pm
Forum: Beginners
Topic: Binary Blob?
Replies: 6
Views: 243

Re: Binary Blob?

Please note that the Raspberry Pi is one of the few SBCs where the manufacturer themself update the kernel multiple times per year and apply fixes regularly. Raspberry Pi also upstreams lots of their work on Raspberry-specific drivers.

ghans
by ghans
Sun Jun 17, 2018 7:57 pm
Forum: Beginners
Topic: Binary Blob?
Replies: 6
Views: 243

Re: Binary Blob?

The Raspberry Pi needs a BLOB to boot. Without it can't boot. This BLOB is also GPU firmware at the same time. Without the firmware the camera, video and 3D acceleration won't work. The 3D parts are currently getting rewritten as DRM/Mesa3D driver which is completely open-source. The WiFi chip on ce...
by ghans
Sun Jun 17, 2018 7:08 am
Forum: Beginners
Topic: Raspbian Lite - can I run GUI browser?
Replies: 4
Views: 177

Re: Raspbian Lite - can I run GUI browser?

Most browsers NEED X Windows. There are few which can use the framebuffer or are completely headless but you must compile them yourself - how much time do you have ? The simplest solution is to install an X Server on your Laptop or PC. A popular X Server for Windows is XMing. Start XMing, start PuTT...
by ghans
Sun Jun 17, 2018 5:59 am
Forum: Advanced users
Topic: how can i pass value from a c++ program to a Apache 2 web server ?
Replies: 5
Views: 179

Re: how can i pass value from a c++ program to a Apache 2 web server ?

Do you know what CGI is ? It is the oldest and simplest way to make dynamic webpages. Before each programming language provided dedicated modules for apache2 people used CGI with C, C++, Perl, PHP, Python .... Write a CGI program in C++, it's really simple. https://www.tutorialspoint.com/cplusplus/c...
by ghans
Fri Jun 15, 2018 3:08 pm
Forum: Deutsch
Topic: Newbyfrage 2: .. Raspberry-OS ~= Linux ?
Replies: 3
Views: 231

Re: Newbyfrage 2: .. Raspberry-OS ~= Linux ?

Zufällige Downloads "für Ubuntu" oder "für Linux" funktionieren selten auf dem Pi , da diese meist nur für x86 (Intel/AMD) geeignet sind. Wenn die Anwedung nicht quelloffen ist kannst du dann direkt aufgeben, der ARM Prozessor im Pi kann mit closed-source x86-Downloads nichts anfangen. Übrigens ist ...
by ghans
Thu Jun 14, 2018 12:47 pm
Forum: Deutsch
Topic: Neu im Forum, kurze Frage zu Leistungsaufnahme der verschiedenen Raspis ..
Replies: 5
Views: 291

Re: Neu im Forum, kurze Frage zu Leistungsaufnahme der verschiedenen Raspis ..

http://raspi.tv/2016/how-much-power-doe ... ed-to-pi2b

Die B+ Modelle von 2013 scheinen am passendsten, die haben einen Ethernet-Port.

ghans
by ghans
Thu Jun 14, 2018 10:42 am
Forum: Raspbian
Topic: How secure is sudo with a password?
Replies: 8
Views: 413

Re: How secure is sudo with a password?

Both the Linux kernel and GNOME offer a keyring facility. It might or might not be an improvement over plaintext files which only the owner can read (note that the SSH private key is secured exactly in this way).

ghans
by ghans
Thu Jun 14, 2018 7:33 am
Forum: Deutsch
Topic: Raspberry PI Zero W mit GPS-Empfänger und GSM-Modul
Replies: 4
Views: 269

Re: Raspberry PI Zero W mit GPS-Empfänger und GSM-Modul

Füher benutzte man wvdial und pppd. wvdial bekam ein Skript mit AT-Befehlen und pppd hielt die Verbindung für deinen gesamten Linux-PC aufrecht. Wie man das heute macht weiss ich nicht. Damals wie heute sollte man nicht innerhalb eines eigenen Programms die AT-Befehle schicken müssen. Auch die Inter...
by ghans
Wed Jun 13, 2018 4:57 am
Forum: General discussion
Topic: 4k Render
Replies: 3
Views: 201

Re: 4k Render

Look for cameras with USB2 connection. Make sure the driver is available in the Linux kernel (the version you can download at kernel.org, not elsewhere).

All other cameras are quite unlikely to work on the Raspberry Pi.

ghans
by ghans
Wed Jun 13, 2018 4:51 am
Forum: Beginners
Topic: Is it possible to compile this code for the Pi if it was intended for different processor architecture?
Replies: 8
Views: 393

Re: Is it possible to compile this code for the Pi if it was intended for different processor architecture?

Just try it and see. You actually have the source code of this app, which is the minimum prerequisite neccessary for Raspberry Pi compatibility of random "Linux" software.

ghans
by ghans
Mon Jun 11, 2018 4:27 am
Forum: Beginners
Topic: Noobs or Rasbian to install?
Replies: 6
Views: 231

Re: Noobs or Rasbian to install?

NOOBS was invented before Etcher existed. It also provides a rudimentary multiboot experience and a method to reset your system completely. Programs like Win32DiskImager or even dd were considered too complicated, and NOOBS can be installed via drag-n-drop. I still prefer raw images. They are easier...
by ghans
Sun Jun 10, 2018 8:03 am
Forum: Beginners
Topic: Installing apps
Replies: 8
Views: 284

Re: Installing apps

Package management was invented decades ago as solution. The biggest difference between Linux distros tends to be their approach to package management. Raspbian is based on Debian and uses APT. Package management was the App Store before the App Store. The system puts all the files in the right plac...
by ghans
Sun Jun 10, 2018 5:21 am
Forum: Other projects
Topic: Is my energy control feasible?
Replies: 4
Views: 281

Re: Is my energy control feasible?

There a multiple Raspberry Pi UPS boards on the market today. They usually offer custom safe shutdown software. That is to say, 10 lines of Python :lol: (might be even less,
you just need to call the shutdown command, after all). Google keywords : "UPS HAT Raspberry Pi"

ghans
by ghans
Sun Jun 10, 2018 5:10 am
Forum: Gaming
Topic: Can't add roms to sd card because formatting will delete everything!
Replies: 4
Views: 394

Re: Can't add roms to sd card because formatting will delete everything!

Installing things on Linux should be done on a running system. Also, you should not use "installers" but package managment, which works like an app store and needs an internet connection. It knows whats best for your concrete subvariant of Linux (Raspbian based on Debian and uses APT as package mana...

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