All Questions

I would like to run a headless machine to perform some basic automation and statistical generation (e.g. generating netstats, uploading to pvoutput.org), as well as any other trivial batch jobs that ...

I have been writing programs for my Raspberry Pi (running Raspbian) for a few weeks now and would like to make sure I protect the work I have done. How can I backup the files I have created? Can I ...

I'm not all that keen to buy a USB hard disk, but I'm aware that SD cards aren't suitable for many repetitions of reading and writing. Are there any steps I can take to extend the life of my SD card ...

Should I just pull the plug? Or is it best if I exit LXDE and any other running processes first?

I have followed (any one of hundreds) tutorial, and it does not work. How do I set up networking/WiFi/static IP address on the Raspberry Pi? (This is a Dorothy Dixer to hopefully catch the hundreds ...

I am trying to execute a script when my Raspberry Pi boots up. I would like the web browser to open up automatically. I have tried to find a simple solution, (like dropping my script in some "...

Even though my SD card is 16GB, the image I flashed onto it was only 2GB and now I can only see 2GB of storage space on the disk. How can I resize the image so that I have more space on my root ...

I need to SSH my Pi over wifi but because it is a model A board (using a usb hub is not possible - ever) and I have no ethernet, i can't configure the Pi to connect to my secured wifi network. I want ...

I have a Raspberry Pi model B at home, but I do not have a screen. My plan is to connect it to the Ethernet and then ssh into it. But this means that the SD card with the operating system (Debian ...

Has anyone successfully set up their Pi to run on solar power? If so, what would be the cheapest way to sensibly and reliably achieve this, using a combination of solar cells / batteries / voltage ...

When I go to download Google Chrome from http://www.google.com/chrome in Midori on the Raspberry Pi , I am presented with a modal dialogue box, Please select your download package: 32 bit ....

When using the RPi.GPIO library in Python you have to call import RPi.GPIO as GPIO and then GPIO.setmode(GPIO.BOARD) or GPIO.setmode(GPIO.BCM) What is the difference between these two options?

I wish to reformat my SD card to use normally again (it currently has one 78 MB FAT32 partition and one 3.9 GB Linux partition). How do I do this (on Windows/Mac/*nix)?

I go back and forth from home to school with my Pi. I just got the WiFi working last night at home using wpa.conf instead of wpa_supplicant.conf as the book I was using had the walk thru for that ...

Raspberry Pi has only 256 MB of RAM, so I would like to use swap space (either on SD card or attached USB storage). How do I set it up?

Got a Pi 3 which will always use ethernet, so trying to figure out how to disable the WiFi such that it does not even turn on after a reboot. If I do an ifconfig I see the wlan0 device. I can do ...

Is it possible to use the GPU for calculations? (e.g. CUDA/OpenCL)

As we all know, the Raspberry Pi doesn't really use that much power (5v + 700mA is the spec). I'd like to build a battery backup for power outages in a DIY-ish fashion. I don't need surge protection ...

I have seen some examples of people powering their Raspberry Pis by wiring a DC "barrel plug" style power supply to the 5V and GND GPIO pins. What considerations should be taken when doing something ...

I have been given a pre-installed SD card. It boots fine, and I know it is running some version of Raspbian. Can I determine exactly which release it is running?

Can I use the GPIO as a pulse-width modulation output? If so, how would I go about doing it and how many concurrent, distinct PWM outputs can I have?

There is a lightning bolt icon flashing on the top right of my screen. What does it mean? Here's a picture:

When doing an apt-get upgrade on my RPi 3, many lines of output show up like this: Adding 'diversion of /boot/bcm2708-rpi-b-plus.dtb to /usr/share/rpikernelhack/bcm2708-rpi-b-plus.dtb by ...

I though about using the Raspberry Pi to switch on and off other electrical devices which unnecessary consume power in stand-by mode. In short, I'd like to control an AC socket or multiple sockets. ...

I have a Raspberry Pi running Raspbmc connected through HDMI to a dumb HDTV. (Does not support HDMI-CEC). If I power on both the TV (both at source and display through remote) and Raspbmc at the same ...

I have tried Debian on VirtualBox and would like to check out Raspbian. How do I install Raspbian on VirtualBox?

I am new to the Raspberry Pi and even new to the Raspberry Pi camera. I have seen a lot of tutorials online for the Raspberry Pi camera but have yet to find on that lets me stream straight from the ...

I understand that the software on the Raspberry Pi is divided into three sections: the closed-source GPU firmware, the patched ARM Linux kernel and the user space software. Is the GPU firmware on the ...

What are the differences between Raspbian Jessie and Raspbian Jessie Lite? What's better for a Owncloud server: Raspbian Jessie or Raspbian Jessie Lite?

During the installation of Raspian I chose "Start X-Server after boot", but now I want to boot it once without starting the X-Server, so I've got more memory to run a program. How do I boot without ...

I am trying to install Raspbian from NOOBS, but I have no other screen/keyboard available than my laptop screen/keyboard. I find enough information about using a laptop screen/keyboard for a Pi, but ...

I'm using my Raspberry Pi as a headless server which I can ssh into. I don't need the X Server, LXDE etc. I'm running Raspbian "wheezy". I've already disabled "Start desktop on boot" using raspi-...

What is a definitive list of operating systems that work with the Raspberry Pi? I know of the distributions listed on their sites of course, but it could be beneficial to have a complete list of ...

I already asked this question on Stack Overflow, but I would like to know if anyone managed to build a GCC 4.7 toolchain for ARM cross-compilation (for a x86/x86-64 Linux host). There are many ...

Having tens of thousands of Raspberry Pi's connected to the internet is eventually going to capture the interest of some people who would like to do unsavory things to the little computers especially ...

I am running the Debian wheezy beta and using my Pi to display my geckoboard dashboards using midori, as a result I want to prevent the screen from going blank, which it does after 10 minutes (though ...

This question answers the question of how I use an external computer to create a backup of my RPi. I'm wondering whether I can create a backup image of the SD card that is currently in use, and ...

What voltage range can it accept? What sort of batteries are appropriate?

I recently bought a Raspberry Pi, type B model. I want to set it up directly to my laptop screen, without any other monitor. I have not set it up yet. How do I connect my laptop's screen as the ...

I need to find the Raspberry PI IP address on local network without connect the Raspberry to a monitor. How do I do it on Linux or Mac OS systems?

I'm using my pi to monitor my power meters. Data is transferred to PC by WiFi connection using Edimax EW-7811UN USB adapter. When the Wifi connection drops (switched off over night, or shaky ...

How can I perform an upgrade from Raspbian Wheezy to Jessie?

Is it possible to reliably run a Pi in an airtight (watertight) case or is some form of ventilation required for cooling? I'm assuming it doesn't chuck out too much heat, but am wondering whether ...

I read that it's possible to allocate either 128MB, 64MB or 32MB to the Raspberry Pi's video memory. Given that my primary use case for this machine is educational: I will be running lightweight ...

Where can I find the serial number of the Raspberry Pi I am currently using?

My searching efforts have failed when trying to find this. On average, how much energy does the Raspberry Pi consume in 24 hours (minimal usage vs. max usage in a day and USB vs. Micro-USB powered)?

My Raspberry Pi runs OpenELEC. The XBMC has a Power-button in the left-bottom corner where I can shutdown the Raspberry Pi. That works fine, but I can't figure out how to turn it on again after the ...

I have a 512MB Pi. I am trying to make sure I am getting the most out of it. I just downloaded the latest version of Raspbian and installed it on the Pi. Do I also need rpi-update? Is rpi-update ...

My first thought was to simply start broadcasting WOL magic packets over the network, but my Raspberry Pi is not waking up. So I'm assuming it either doesn't support WOL, or I haven't properly ...

There are very many, often contradictory, claims about the power requirements and limitations of the Pi. What are the exact requirements?