Most Popular

1500 questions
20
votes
6 answers

Is it true that I should not use a Micro-SD card with a SD size adapter?

I have read somewhere that I should not use a Micro-SD card (with an adapter) for the main storage & OS boot of my Raspberry Pi. Is it true? Why?
villares
  • 313
  • 1
  • 2
  • 7
20
votes
4 answers

Raspistill slow to trigger?

I'm trying to trigger "many" raspberries together, while using raspistill is only for testing, i'm wondering why taking a picture is so slow, i made a test and, at the same time as i hit enter on this command: raspistill -o /home/pi/test55.jpg -ex…
Ronan Thibaudau
  • 360
  • 1
  • 3
  • 9
20
votes
3 answers

Filesystem corruption on the SD card

If I use the Pi a bit, filesystem corruption soon appears. For instance, this file was changed to another one: $ ls -alt /etc/apt/apt.conf.d total 16 lrwxrwxrwx 1 root root 13 Oct 2 22:18 50raspi -> ../init.d/ntp Or…
bortzmeyer
  • 472
  • 2
  • 4
  • 12
20
votes
4 answers

Using Raspberry Pi to control my AC via infrared

When I'm on my way back home from somewhere, I want to be able to switch my AC on a few minutes before I arrive at my apartment, probably by using my phone to connect to my Raspberry Pi on my desk which will, in turn, control the AC. The AC is…
Ram Rachum
  • 330
  • 1
  • 2
  • 7
20
votes
1 answer

Is there an alternative to MySQL?

I'd like a lightweight database for my lightweight RaspPi. MySQL seems a bit of overkill and involves too much administration. I'll need one with a perl API.
CPRitter
  • 1,061
  • 10
  • 15
20
votes
5 answers

Writing ARM Assembly code

After getting my Raspberry Pi, I decided that I wanted to learn how to write ARM assembly code. My question is, what do I need to get started? I assume that there is already a compiler installed but I don't know what it is (gcc maybe?). Any help is…
ohblahitsme
  • 741
  • 1
  • 7
  • 18
20
votes
6 answers

X11 Connection Rejected Because of Wrong Authentication

I'm trying to run gparted on my Raspberry Pi. After logging in with ssh -X pi@pi and trying to run sudo gparted, I get the error message... X11 connection rejected because of wrong authentication. When I try xauth list, nothing is shown, meaning…
Eekhoorn
  • 301
  • 1
  • 2
  • 5
20
votes
3 answers

Raspberry Pi power source supply

I read that the current should be at least 700mA. can I use HTC Google Nexus One charger as my Raspberry Pi power source supply ?
Bishan
  • 303
  • 3
  • 8
20
votes
2 answers

Can I directly connect to my Pi wirelessly without a router?

I've seen a fair number of internet sites and forums that provide details on how to turn the Pi into an access point or a router. I've also seen that there are plenty of how tos out there on how to turn the Pi into a NAS drive I'm not really…
Jon
  • 301
  • 1
  • 2
  • 3
20
votes
7 answers

If I plug my headphones into the audio jack, how do I control the volume?

This will be useful to know before I start just in case the volume is turned to the maximum by default. Also, more importantly, will the maximum volume be high enough to cause immediate hearing damage to children who use a Raspberry Pi with…
Highly Irregular
  • 5,769
  • 10
  • 32
  • 40
20
votes
4 answers

How can I generate frequency / pulse signals?

I am looking at ways to use the Raspberry Pi as a signal generator. Currently I am working on hooking up an inexpensive AD9850 module from ebay. This will generate fairly accurate frequencies up to 40MHz (70MHz with the AD9851). I guess the audio…
John La Rooy
  • 11,947
  • 9
  • 47
  • 75
20
votes
9 answers

Use Raspberry Pi to control PC's power switch

Can I use the Raspberry Pi's GPIO pins to make the Raspberry Pi act as a switch? I would like to shut down, boot up and reboot my computer via hardware remotely. My idea was to take the PS_ON# pin from the front IO header, plug it in on some GPIO…
d3rrial
  • 303
  • 1
  • 2
  • 6
20
votes
7 answers

How to mount a Raspbian SD card on a Mac?

I have a running Raspberry Pi image. Now I want to do the following: Access the files on my Mac when accessing the SD Card Be able to copy the SD Card to have a clone of the current system In Disk Utility I see the partitions disk1s3 and disk1s6…
Besi
  • 874
  • 4
  • 11
  • 24
20
votes
2 answers

insserv: warning: script 'mathkernel' missing LSB tags and overrides

I'm trying to run: sudo update-rc.d avahi-daemon defaults But i get the error: insserv: warning: script 'mathkernel' missing LSB tags and overrides I've read that it has something to do with the wolfram engine. Any solutions?
Waddas
  • 375
  • 1
  • 3
  • 10
20
votes
2 answers

What is Raspbian?

Being new to Linux, maybe this is a stupid question! I don't quite understand how this distro thing all works, is Raspbian just compiled packages with source code taken from the individual repositories of the respective packages? Are there source…
Dog Ears
  • 2,027
  • 6
  • 19
  • 28