Raspberry Pi Stack Exchange
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1500 questions
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1 answer

What is the default cmdline.txt?

My Raspbian Pi crashes to a Kernel panic when I start it up, and it suggested somewhere that an invalid cmdline.txt can cause this. What is in the cmdline.txt by default?
Matthew
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6 answers

Raspberry pi 2 1024M Increase Gpu Memory to 512 at least

I have a Raspberry B and a Raspberry 2. In the B model, I set the config file to gpu_mem_512=256 in order to get more memory for the graphics. It works fine. If I type the command vcgencmd get_mem gpu it shows gpu=256M as requested. Now , with the…
diego.martinez
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2 answers

Virtual machine from SD card

I'm currently trying to make some changes to my Raspbmc Raspberry Pi which I'm continually screwing up. For this reason I've invested in a second SD card. This is my 'test' card, with which I make sure changes I've made are working before doing them…
Rob Mackinnon
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7 answers

How can I put RaspberryPi to Shut down and wake up later?

I want my raspberryPi to shut down during the night and wake up in the morning. I.e., at 10pm raspberry should shutdown or at least turn of the WiFi and the HDD. At 10am every day my raspberry should wake up or at least turn on the WiFi and the…
Michael
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13
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1 answer

Does short-circuiting GPIO pins damage the Raspberry?

Does accidently connecting the wrong GPIO pins damage the Raspberry Pi or is there some protection like a fuse?
Jakob
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2 answers

How long does the RPi last on a battery?

For how long can the Raspberry Pi run when powered from a battery of a given capacity? Of course this will strongly depend on how it is used and what devices are connected, but I am trying to get a rough estimate for my use case, to be able to…
Szabolcs
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2 answers

Could not find CURL (missing: CURL_LIBRARY CURL_INCLUDE_DIR)

I'm trying to compile synergy from the source code, and when I do, I get this error: -- Could not find CURL (missing: CURL_LIBRARY CURL_INCLUDE_DIR) CMake Error at CMakeLists.txt:160 (messege): Missing library: curl So I did sudo apt-get install…
Timmay
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13
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3 answers

External DVD drive won't open

In anticipation of the MPEG2 hardware decode license being available, I bought an external DVD drive. It works fine on my Windows 7 laptop. However, when I connect it to my raspberry pi, I'm unable to get the drive to open. All that happens is that…
neuro
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13
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2 answers

Using OpenCV with RasPiCam and python

Has any one been able to get OpenCV to directly play video from the RasPiCam board using python? I've seen some projects involving workarounds, but what I'm interested in is being able to use the RasPiCam board with OpenCV as if it were a USB…
Ryan
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13
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1 answer

Is it possible to connect a Raspberry Pi to a 3.2" TFT LCD touch panel?

Can I connect a Raspberry Pi to a device like SainSmart 3.2" TFT LCD Display + Touch Panel + PCB adapter SD Slot for Arduino 2560? How hard would it be?
user10768
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2 answers

How do I get a WiFi dongle to work with the device?

I own a Model B Raspberry Pi and am trying to get my Edimax WiFi dongle to work via the USB port. I am using a 750mA power supply and usually have a keyboard-touchpad combo plugged in too, which has no problems. Am I not giving enough power to the…
Chesh Williams
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13
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4 answers

SD Image won't fit on SD Card

I have had one pi set up and running good for a while (RPi - 1). I wanted to create an image of RPi - 1 so I can load an exact copy onto my 2nd pi (RPi - 2). The SD card in RPi - 1 is 4GB (only about half is actually used) and the SD card in RPi -…
Rob_IGS
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13
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3 answers

Installing Python 3.4 on Raspberry Pi

Is it possible to run python 3.4 on a Raspberry Pi? Currently I have python 3.2, but the odd thing is that running sudo apt-get update sudo apt-get install python3 results in my Raspberry Pi informing me that python3 is 'already the newest…
starbeamrainbowlabs
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1 answer

What are the usage of extra available holes in model B

Despite some research on the web, I cannot find the options available from these "opportunity" holes on the Rpi. I probably do not use the proper words to identify them. What is the name for this type of hole ? What are the usage for the…
Alain
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4 answers

Can I use the Raspberry Pi as a Mini-PC?

I have never used a Raspberry Pi before, but for some time I am thinking about buying one in order to create some mini personal computer out of it. I would use it for playing movies(preferably output to tv), internet browsing and maybe creating some…
Dragos
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