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by davenull
Wed May 11, 2016 2:41 pm
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

maybe I misunderstood how you want to create the 2nd SD card (which must be a 1:1 copy), can you please tell me again?
I do need this 2nd complete copy.

(short + clear sentences,
single step by step,
my English is quite shaky)
by davenull
Wed May 11, 2016 2:06 pm
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

no, no rescue shell wanted. I have to spend 1 complete week (or perhaps even more) for re-installing additional software and re-adjusting my OS and the hardware pins and everything, so I need to make a complete card copy to a 2nd card to be useable out of the box, in case the 1st system breaks, or f...
by davenull
Wed May 11, 2016 1:16 pm
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

I want to create a backup of my SD card (a 1:1 copy), e.g. to a 2nd SD card which is plugged to a USB SD card reader on my Pi. This SD card reader has a long wire, so I can handle the 2nd SD card fine. Just the 1st SD card is hard to handle because the Pi is built deep in the innermost of my mobile ...
by davenull
Wed May 11, 2016 11:13 am
Forum: C/C++
Topic: is 2.29 the current wiringPi release?
Replies: 7
Views: 1150

Re: is 2.29 the current wiringPi release?

yes, thank you for your reply!
by davenull
Wed May 11, 2016 10:34 am
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

I have time to wait for the SD image copy to complete (e.g., over night), and I cannot remove the card without disassembling 80% of my mobile robot. It's just for backup reasons and to have a updated SD clone in case of urgent emergency issues (hope they'll never happen, but who knows...) As I am a ...
by davenull
Wed May 11, 2016 9:38 am
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

please be more specific!
davenull wrote:how to create a full SD image copy by the Raspi itself during runtime instead, without removing the SD card ?
RaTTuS wrote:learn how to use fdisk , mkfs , dd and your prayers will be answered
by davenull
Wed May 11, 2016 9:20 am
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

that's a pity, but thank you very much for your reply!
by davenull
Wed May 11, 2016 8:20 am
Forum: Beginners
Topic: change HDMI screen resolution manually during runtime?
Replies: 22
Views: 3539

change HDMI screen resolution manually during runtime?

hi, is it possible to change HDMI screen resolution manually during runtime? Temporarily I am using a 1920x1080 HDMI TV screen for desktop programming, but than I have to switch to a 800x480 TFT for the mobile robot application to run, so I want to unplug the full HD TV screen and change to the smal...
by davenull
Wed May 11, 2016 7:33 am
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

now is rpi-clone working with NOOBS-created Jessie SD cards or not?

if not:

how to create a full SD image copy by the Raspi itself during runtime instead, without removing the SD card ?
by davenull
Wed May 11, 2016 7:31 am
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

has anyone a useable C command to poll the low voltage warning?
by davenull
Tue May 10, 2016 3:56 pm
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

Re: SD backup on the Pi during runtime: rpi-clone? alternati

You cannot back-up a running system :roll: If you want a backup of a working system, copy the contents of the SD card to a file on a separate PC. If you want to store important data from a running system, use rsync to copy the contents to another medium, like NAS, USB stick or said extra PC :) rpi-...
by davenull
Tue May 10, 2016 2:57 pm
Forum: Beginners
Topic: STICKY: Howto: Disable Screen Saver In Raspbian
Replies: 106
Views: 381123

Re: Howto: Disable Screen Saver In Raspbian

:idea: !
:geek:

+1
8-)
by davenull
Tue May 10, 2016 2:55 pm
Forum: Beginners
Topic: SD backup on the Pi during runtime: rpi-clone? alternatives?
Replies: 32
Views: 14175

SD backup on the Pi during runtime: rpi-clone? alternatives?

hi,

I now just wanted to start using rpi-clone
https://github.com/billw2/rpi-clone

but I now read:
rpi-clone does not work with NOOBS.
I have a Jessie Build, created from NOOBS.
So it woudn't work then? :cry:
by davenull
Tue May 10, 2016 2:48 pm
Forum: Beginners
Topic: STICKY: Howto: Disable Screen Saver In Raspbian
Replies: 106
Views: 381123

Re: Howto: Disable Screen Saver In Raspbian

now I am super confused.
This was your post, and I followed it, and it worked.
viewtopic.php?f=91&t=57552&p=971373#p969057

Which fix am I missing?
Or do you mean "patch" ?
by davenull
Tue May 10, 2016 2:45 pm
Forum: Beginners
Topic: STICKY: Howto: Disable Screen Saver In Raspbian
Replies: 106
Views: 381123

Re: Howto: Disable Screen Saver In Raspbian

thank you, yes, I just intended the screen always to be visible, no black screen, no screen power save mode. I followed your instructions just right now, and I'm observing wht's happening... ;) edit: 30 min passed, everything is still on Thanks again! :) You must be super confused. It is very easy ...
by davenull
Tue May 10, 2016 7:24 am
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

ok, thanks for the link -

but where is the answer to my question?

(i.e., the exact C/C++ command ?)
by davenull
Mon May 09, 2016 8:49 pm
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

is there really no one who knows a C command to poll the voltage warning during runtime ?
It sounded as if there should exist a solution via GPIO35
but how to do it with C code ... ? :-/
by davenull
Mon May 09, 2016 8:10 am
Forum: Beginners
Topic: wiringPi + MCP23017 + RGB LED
Replies: 4
Views: 1921

Re: wiringPi + MCP23017 + RGB LED

you may connect an Arduino Due or Zero to Raspi i2c and let the Arduino do the pwm on board https://www.arduino.cc/en/Main/ArduinoBoardDue here I once have posted a Raspi to Arduino communication program: http://www.mindstormsforum.de/viewtopic.php?f=78&t=8689&p=67909#p67909 Note that i2c on AVR Ard...
by davenull
Sun May 08, 2016 2:37 pm
Forum: Off topic discussion
Topic: code box font: how to change?
Replies: 2
Views: 570

Re: code box font: how to change?

actually no, as this is a phpbb3 forum too, I assumed the site admins (or either specialists) would know perhaps, too.

ps,
for this Raspberry Forum a different code box font would also be appreciated, because of the same reasons.
by davenull
Sat May 07, 2016 7:59 pm
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

I have a digital voltmeter for test purposes.
All I need now is the C/C++ code to get the low voltage warning during runtime -

again, how to do it?

I just need the code snippet, nothing else!
by davenull
Sat May 07, 2016 6:57 pm
Forum: Off topic discussion
Topic: code box font: how to change?
Replies: 2
Views: 570

code box font: how to change?

hi, does someone know how to change the code box font type ? we have the same phpbb3 in our forum and we're not fine with the code box font type, because 1 (one), 0 (zero), l (L), and O (o) are hardly to distinguish. Our site admin already tried to change it to FixedSys, but without success. Does so...
by davenull
Sat May 07, 2016 5:43 pm
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

yes, perhaps that's right, but that is again such a huge effort for extra electronics, soldering, wiring, programming....

if I could make the low voltage monitor work I'd actually prefer to test that approach before... :-/
by davenull
Sat May 07, 2016 4:54 pm
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

ok, surely I will test the performance during runtime, but first of all I will need the source code for C/C++.
Can you provide that?
by davenull
Sat May 07, 2016 8:30 am
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

yes, I have a Pi 2. Can you give me a code snippet how to program it in C/C++ ? I want to call that function repeatedly in an endless loop in a pthread task My mobile robot should stop all motors and shut down in case the low voltage warning is issued (i.e. just show how to set a global variable (se...
by davenull
Fri May 06, 2016 6:35 pm
Forum: C/C++
Topic: Raspberry board voltage
Replies: 18
Views: 2644

Re: Raspberry board voltage

sorry, but the answer above suggested another solution: it is possible to monitor the gpio coupled to the "low-voltage warning" mechanism (the PoWeR led gpio) but, at the moment, which gpio that is eludes me :cry: Trev. Gpio 35 So what I wanted to do is to use the Gpio 35 feature, the "low-voltage w...

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