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by suchenwi
Mon Nov 04, 2013 10:52 pm
Forum: Beginners
Topic: unrar spanned archive
Replies: 18
Views: 3054

Re: unrar spanned archive

As RaTTuS wrote on Sep.23, the files should be named
x.rar
x.part2
x.part3
...
Have you tried that?
by suchenwi
Sun Nov 03, 2013 9:54 pm
Forum: General discussion
Topic: No crumb trail
Replies: 21
Views: 6976

Re: No crumb trail

To see follow-ups on your own replies, just click on your username at the bottom. From the page with your posts, you can navigate to the threads they are in.
by suchenwi
Mon Oct 28, 2013 7:08 pm
Forum: Beginners
Topic: Connect dvi display to Raspberry?
Replies: 7
Views: 1259

Re: Connect dvi display to Raspberry?

When I did first tests with my Pi, I connected a DVI monitor with a suitable cable to the HDMI port, and experimented a bit with playing MP3s, with a pair of passive mini-loudspeakers on the audio jack. It worked (some better than others), without me having to reconfigure anything. The output of the...
by suchenwi
Mon Oct 28, 2013 4:13 pm
Forum: Staffroom, classroom and projects
Topic: Teaching & Learning Music Notation
Replies: 27
Views: 15575

Re: Teaching & Learning Music Notation

Maybe this older fun project (2002) of mine, "TclMusic" http://wiki.tcl.tk/3977 could be revived on the Pi? Tcl and Tk are already in Raspbian, but I'll have to see what library I can find (or make) for sound output. Notes in text notation and graphic rendering, a small piano keyboard to play on, an...
by suchenwi
Mon Oct 28, 2013 2:16 pm
Forum: General discussion
Topic: How to become a company distribution of Raspberry Pi
Replies: 6
Views: 7847

Re: How to become a company distribution of Raspberry Pi

For Viet Nam, maybe Egoman (RasPi distributor in China) is a closer contact?
by suchenwi
Sun Oct 27, 2013 9:06 am
Forum: Other
Topic: NOOBS Help
Replies: 3
Views: 1871

Re: NOOBS Help

I have't tried it, but I've read that you get into NOOBS mode when you hold down a Shift key during boot.
by suchenwi
Sat Oct 26, 2013 9:00 pm
Forum: General discussion
Topic: A suggestion
Replies: 2
Views: 1472

Re: A suggestion

Yes, I agree with that proposal.
Or: the most widespread way of getting software in Debian and related systems is via apt-get or aptitude. Free software could be provided there right away. Commercial software must find an intermediate step between payment and apt-get.
by suchenwi
Sat Oct 26, 2013 5:43 pm
Forum: Beginners
Topic: Can a mouse be used in Linux Shell?
Replies: 8
Views: 1526

Re: Can a mouse be used in Linux Shell?

Also, with a one-liner awk script you can compress such output:
awk '{t=t " " $0; if(length(t)>64){print t; t=""}}END{print t}' logfile
by suchenwi
Fri Oct 25, 2013 5:12 pm
Forum: Staffroom, classroom and projects
Topic: Tcl
Replies: 8
Views: 7620

Re: Tcl

I prefer to use: - awk for little scripts on the command line - Tcl for bigger things - Tk for GUIs - C extensions (shared objects/DLLs) for stuff where Tcl gets too slow (e.g. image rotation, Levenshtein distance calculations etc.) or calls to specific OS functions Luckily, Raspbian has them all ;^...
by suchenwi
Fri Oct 25, 2013 3:17 pm
Forum: Beginners
Topic: SOLVED EXIT GUI Raspbian?
Replies: 14
Views: 57550

Re: EXIT GUI Raspbian?

What I typically do in Raspbian is boot to GUI (and I switched the background from the giant raspberry to a Debian motive in grayish blue), and open an Accessories/LXTerminal for the things I do there. To shut down the Pi I just run "sudo halt" in that console, and wait with pulling the USB power un...
by suchenwi
Wed Oct 23, 2013 8:06 pm
Forum: Arch
Topic: Minimal config for cmdline only mode
Replies: 3
Views: 1338

Re: Minimal config for cmdline only mode

ntpd (Network Time Protocol Daemon)
by suchenwi
Tue Oct 22, 2013 8:27 pm
Forum: General discussion
Topic: New Pi, will it work with existing raspbmc?
Replies: 4
Views: 691

Re: New Pi, will it work with existing raspbmc?

Typical debugging steps:
- does the Pi get sufficient power?
- what do you see when you plug in an HDMI monitor, a keyboard, a mouse?
- can the Pi boot another OS, e-g- Raspbian?
- are the SD card contacts in touch?
by suchenwi
Mon Oct 21, 2013 5:34 pm
Forum: Other programming languages
Topic: Dipping my toes in gas
Replies: 15
Views: 3747

Re: Dipping my toes in gas

@DavidS: well, as I am a Linux "fanboy", the GCC suite is "standard" for me, and I love the fact that it can just spit out assembler source code, so that I get ideas of how something can be done in ASM. As I wrote in my previous post, there is a brilliant tutorial for GAS online. Starting from that,...
by suchenwi
Mon Oct 21, 2013 5:12 pm
Forum: Other programming languages
Topic: Dipping my toes in gas
Replies: 15
Views: 3747

Re: Dipping my toes in gas

@DexOS: Excellent! The tutorial you pointed me to (so far there are 16 "lessons") is exactly what I was hoping for! Thorough explanations, many examples... I just looked over it briefly at work, but I know I'll read and digest it intensively over the next days/weeks in my spare time. The explanation...
by suchenwi
Sun Oct 20, 2013 6:03 pm
Forum: Other programming languages
Topic: Dipping my toes in gas
Replies: 15
Views: 3747

Re: Dipping my toes in gas

Thanks for the hint (I could have thought of it myself... ;^) Now to search the ARM site for ARM1176JZF-S as used in the Pi, or possible generalizations...

I was somehow hoping that there was a pre-digested tutorial specifically for the Pi hardware somewhere.
by suchenwi
Sun Oct 20, 2013 4:26 pm
Forum: Other programming languages
Topic: Dipping my toes in gas
Replies: 15
Views: 3747

Re: Dipping my toes in gas

Oh, I forgot: calling "as" directly is tricky, but just feeding the (possibly modified) assembler code back into gcc does assembly, linking etc.:

Code: Select all

pi@raspberrypi ~ $ gcc astry.s
pi@raspberrypi ~ $ ./a.out 
hello 42
by suchenwi
Sun Oct 20, 2013 3:54 pm
Forum: Other programming languages
Topic: Dipping my toes in gas
Replies: 15
Views: 3747

Dipping my toes in gas

"gas" is the GNU assembler (the executable is called just "as"), which comes out of the box with Raspbian. I haven't managed to find tutorial material (googling for "gas" or "as" is not helping), but I remembered that one can let gcc produce assembler source. So I coded a slightly enhanced "hello wo...
by suchenwi
Sun Oct 20, 2013 2:45 pm
Forum: Beginners
Topic: rasp pi wifi
Replies: 4
Views: 1454

Re: rasp pi wifi

Powered USB hubs are a good suggestion, but so far I am happily using my Pi (B rel. 2, China) without one. Pi is powered from netbook USB. Of Pi's 2 USB ports, one has a card adapter (SD, microSD), the other has an unpowered 4x hub. Hub has Edimax nano WiFi (beautiful little thing!), cabled mouse, c...
by suchenwi
Wed Oct 16, 2013 10:36 pm
Forum: Troubleshooting
Topic: Flash Card lifetime issue
Replies: 7
Views: 1188

Re: Flash Card lifetime issue

Just to make sure - by Flashcard you mean SD card?
I haven't made similar experiences, but I turn on my Pi for typically an hour or so, test around, and then shut it down.
by suchenwi
Wed Oct 16, 2013 6:19 pm
Forum: General discussion
Topic: Help a mom, please
Replies: 17
Views: 3347

Re: Help a mom, please

Re powered USB hub: I am using my Pi (model B rev. 2, made in China) since several weeks, and have never experienced problems that might come from lack of power. My setup: Power from netbook via USB/microUSB cable (I suppose it's 500 mA) Pi USB port 1: card reader (holds one SD and one micro SD card...
by suchenwi
Tue Oct 15, 2013 9:16 pm
Forum: General discussion
Topic: Sonic Pi - no sound (SOLVED)
Replies: 7
Views: 5607

Re: Sonic Pi - no sound

Just tested - Sonic Pi, with this silly little melody:
play_pattern [48,50,52,53,55,55,55, 55,
57,57,57,57,55, 55, 53, 53, 53, 53, 52,
52, 50, 50, 50, 50, 48, 48]
No-name headset (bought for 5€), no specs at hand, but played it well enough.
by suchenwi
Tue Oct 15, 2013 8:23 pm
Forum: General discussion
Topic: Sonic Pi - no sound (SOLVED)
Replies: 7
Views: 5607

Re: Sonic Pi - no sound

The audio jack delivers indeed a very small signal. It is suggested to connect it to an audio amplifier. Headphones will work, or not.. depending on their Ohmage.
by suchenwi
Tue Oct 15, 2013 7:55 pm
Forum: General discussion
Topic: Help a mom, please
Replies: 17
Views: 3347

Re: Help a mom, please

One more suggestion: order a box, too. They are on sale for 10$ or less, and protect the little Pi from dust and potential liquid spillage.
by suchenwi
Tue Oct 15, 2013 7:41 pm
Forum: Networking and servers
Topic: HOWTO: Use Android Tablet as a screen / keyboard
Replies: 42
Views: 363740

Re: HOWTO: Use Android Tablet as a screen / keyboard

My setup (tested to be working): Pi B 2.0, runs tightvncserver. Cheap (69€) 7" Android tablet (TrekStor Surftab Breeze), runs android-vnc-client. Screen resolution only 800x480. WLAN router connecting both. Operation is smooth, though I have to scroll the virtual screen around a bit. Typing is incon...
by suchenwi
Wed Oct 02, 2013 10:00 pm
Forum: Troubleshooting
Topic: Edimax WiFi Adapter - Can scan wifi networks but no internet
Replies: 7
Views: 1997

Re: Edimax WiFi Adapter - Can scan wifi networks but no inte

Same thing here. I bought an Edimax EW-7811Un, even though I wondered: can such a little thing do WiFi?
It can, and even easier than I thought: no need to type that 16-digit number to log in... just push the WPS button on the router, and you're online.

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