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by ghans
Sat Apr 21, 2018 5:55 am
Forum: Troubleshooting
Topic: Can I run GParted, without the "live" / boot?
Replies: 5
Views: 279

Re: Can I run GParted, without the "live" / boot?

Burn gparted to a CD or use a Live USB stick and boot from it. Some computers can boot the CD image if it has been "burned" to an USB pendrive, too. No, gparted will NOT be able to modify the media it runs from and will NOT work on Windows. An exception might be operating systems running completely ...
by ghans
Fri Apr 20, 2018 2:17 pm
Forum: Deutsch
Topic: Mehrere Pis schnell einrichten
Replies: 5
Views: 167

Re: Mehrere Pis schnell einrichten

qemu-user funktioniert nur auf Linux. Damit kannst du in das Image "hineinspringen" (chroot) als würdest du direkt einen Raspberry benutzen. apt-get usw. funktionieren auch. Nachdem du die Änderungen durchgeführt hast einfach das chroot-Environment verlassen. Ehrlich gesagt ist das schon etwas für F...
by ghans
Fri Apr 20, 2018 4:33 am
Forum: General discussion
Topic: IoT based Attendance Recording System
Replies: 22
Views: 449

Re: IoT based Attendance Recording System

The only foolproof way would be to use two turnstiles IMHO.

ghans
by ghans
Thu Apr 19, 2018 7:45 pm
Forum: Other languages
Topic: How do I compile a Visual Basic program for the Pi?
Replies: 7
Views: 203

Re: How do I compile a Visual Basic program for the Pi?

Visual Basic 6 does not run on Linux. Visual Basic .NET does run on Linux.

ghans
by ghans
Thu Apr 19, 2018 6:38 pm
Forum: Deutsch
Topic: Wie stelle ich manuell die Zeit ein
Replies: 5
Views: 114

Re: Wie stelle ich manuell die Zeit ein

Ohne Internetverbindung wird die Uhr immer nachgehen. Der Fehler wird auch stetig größer je öfter und länger der Pi ausgeschaltet wird.

ghans
by ghans
Thu Apr 19, 2018 4:42 am
Forum: Deutsch
Topic: Mehrere Pis schnell einrichten
Replies: 5
Views: 167

Re: Mehrere Pis schnell einrichten

Wie gut kennst du dich mit Linux aus ? Schon einmal qemu-user benutzt ?

ghans
by ghans
Mon Apr 16, 2018 6:16 pm
Forum: General discussion
Topic: what the differeance between these os?
Replies: 7
Views: 382

Re: what the differeance between these os?

I would NOT suggest the "Lite" version for beginners.

ghans
by ghans
Sun Apr 15, 2018 3:18 pm
Forum: Deutsch
Topic: Autostartproblem
Replies: 11
Views: 281

Re: Autostartproblem

Seitdem Raspbian systemd benutzt muss man anstatt von UUID=3241-40CE /media/usbstick/ vfat utf8,uid=pi,gid=pi,noatime 0 eher UUID=3241-40CE /media/usbstick/ vfat utf8,uid=pi,gid=pi,nofail,x.systemd.automount 0 schreiben. Besonders die Option nofail ist wichtig, sonst bricht der Bootvorgang ab wenn d...
by ghans
Sun Apr 15, 2018 10:00 am
Forum: General programming discussion
Topic: How Much of the Raspbian Stack is Open Source?
Replies: 7
Views: 375

Re: How Much of the Raspbian Stack is Open Source?

The QPU units inside the GPU have freely available documentation.

https://docs.broadcom.com/docs/12358545

I suppose Anholts work would be unthinkable without publication of that document, which was unprecendented for Broadcom and the mobile GPU space in general.

ghabs
by ghans
Sun Apr 15, 2018 7:10 am
Forum: The MagPi
Topic: Help us build a robot
Replies: 8
Views: 250

Re: Help us build a robot

All releases of the MagPi are free to download in PDF format.

ghans
by ghans
Sun Apr 15, 2018 6:48 am
Forum: Deutsch
Topic: Autostartproblem
Replies: 11
Views: 281

Re: Autostartproblem

feh ist genauso wie der Desktop von X abhängig. Deswegen sollst du feh zusammen mit/nach dem Desktop starten. Wenn du den Desktop deaktivierst deaktivierst du auch X. Wenn du eine Version Raspbians ohne Desktop benutzt fehlt auch X. In beiden Szenarien kann und wird feh nicht starten. Hier ist eine ...
by ghans
Sat Apr 14, 2018 7:10 am
Forum: Deutsch
Topic: Autostartproblem
Replies: 11
Views: 281

Re: Autostartproblem

feh muss nach X mit der Desktopumgebung gestartet werden, nicht in der rc.local. feh ist davon abhängig, dass X bereits läuft. Die Desktopumgebung hat natürlich ihren eigenen Autostartmechanismus. Soweit ich mich entsinnen kann war es ein Ordner, in dem .desktop Dateien abgelegt werden. Alle diese ....
by ghans
Fri Apr 13, 2018 1:36 pm
Forum: Raspbian
Topic: Raspbian target platform question
Replies: 6
Views: 231

Re: Raspbian target platform question

Raspbian is optimized for ARMv6 + VFPv2. Raspbian ships with kernel.img and a kernel7.img.
The latter obviously only works on the newer models (Pi2Bv1 , Pi2Bv2, Pi3B, Pi3B+).

AFAIK some parts of Raspbian support autodetection and can enable ARMv7/NEON optimizations at runtime.

ghans
by ghans
Fri Apr 13, 2018 1:33 pm
Forum: General discussion
Topic: 'cast' smartphone screen to the RPI
Replies: 3
Views: 141

Re: 'cast' smartphone screen to the RPI

The MiracleCast project adds support for MiraCast to Linux.

MiracleCast used to work on the RPi. No idea if that is still the case.

ghans
by ghans
Sun Apr 08, 2018 11:09 am
Forum: C/C++
Topic: Running multiple functions at the same time
Replies: 5
Views: 234

Re: Running multiple functions at the same time

You want to write a multithreaded program. So yes, you need to use pthreads.

ghans
by ghans
Sun Apr 08, 2018 10:41 am
Forum: Beginners
Topic: Archiving Software on a RP3
Replies: 4
Views: 135

Re: Archiving Software on a RP3

Collective Access seems to be 100% open-source and written in PHP, which makes it likely that the Pi supports it. I can't access the installation instructions since they seem to be offline ? In most cases the instructions for Debian or Ubuntu also apply for Raspbian, the default OS for the Pi. Clust...
by ghans
Sun Apr 08, 2018 10:13 am
Forum: Camera board
Topic: Understanding camera compatibility
Replies: 2
Views: 174

Re: Understanding camera compatibility

The problem does not lie with the electrical interface but with the driver software. Unless you are willing to write driver code for the CSI and V4L2 subsystems of the Linux kernel the camera simply won't work, especially when most manufacturers don't know about or care for such deep integration int...
by ghans
Fri Apr 06, 2018 11:55 am
Forum: Bare metal
Topic: raspberry pi zero program via USB
Replies: 7
Views: 528

Re: raspberry pi zero program via USB

Fantastic !

ghans
by ghans
Mon Apr 02, 2018 10:06 pm
Forum: Bare metal
Topic: raspberry pi zero program via USB
Replies: 7
Views: 528

Re: raspberry pi zero program via USB

The second link you posted yourself is full of positive testimonials of rpiboot in conjuction
with the Pi Zero ;). Just to be clear, i do not own a Pi Zero myself, i have to rely on the word of others too.

ghans
by ghans
Mon Apr 02, 2018 4:28 pm
Forum: Bare metal
Topic: raspberry pi zero program via USB
Replies: 7
Views: 528

Re: raspberry pi zero program via USB

The (standard) usbboot/rpiboot tool is being used by compute module users all the time. It seems to do exactly what you want. I don't know why it isn't more popular with Pi Zero users.

ghans
by ghans
Mon Apr 02, 2018 5:31 am
Forum: Other languages
Topic: Arduino IDE/C Variant On Pi?
Replies: 3
Views: 274

Re: Arduino IDE/C Variant On Pi?

https://github.com/me-no-dev/RasPiArduino

must be installed on a Windows PC, but then you can deploy code to the Pi over Network.
I would just bite the bullet, install NetBeans and learn proper C++.


ghans
by ghans
Sun Apr 01, 2018 8:16 am
Forum: Beginners
Topic: Encryption Problem[SOLVED]
Replies: 2
Views: 139

Re: Encryption Problem

You cannot encrypt directories with cryptsetup, only block devices. Either create a block device (new partition, new loop device backed by a file etc.) or use ecryptfs/EncFs, which can encrypt directories. Example of creating a block device (loop file) and encrypting it: https://elephly.net/posts/20...
by ghans
Sun Apr 01, 2018 8:01 am
Forum: Troubleshooting
Topic: How to control a python script over a local web server?
Replies: 3
Views: 173

Re: How to control a python script over a local web server?

Make the two scripts communicate with each other via ZeroMQ ? Seems to be the simplest solution.

ghans
by ghans
Fri Mar 30, 2018 10:51 am
Forum: General discussion
Topic: SOC monitoring using Raspberry pi
Replies: 1
Views: 89

Re: SOC monitoring using Raspberry pi

No. You will need at least one additional component.

ghans

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