Raspberry Pi Stack Exchange
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1500 questions
17
votes
3 answers

Hardware-accelerated h264 encoding possible?

The Raspberry Pi will do hardware accelerated h264 encoding when recording video from the camera board. How can I encode h264 (using hardware acceleration) when the source images are not coming directly from the camera? Are there any command line…
Szabolcs
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17
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3 answers

How can I identify from command line which board revision I have?

I just ran cat /proc/cpuinfo on my board. I get "Revision : 1000002". I've failed to find any mention of which version of the board this is. Any help?
John Smith
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17
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4 answers

Unable to grab image from usb Webcam

I would like to take snapshots from an USB webcam attached to my Raspberry Pi: First, I checked the device: pi@raspberrypi ~ $ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 0424:9512 Standard…
Mokus
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17
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5 answers

How do I install pandas on Raspberry Pi?

I'm trying to install Python Pandas on my Raspi and I'm finding strange errors. ~ $ pip install pandas Downloading/unpacking pandas Downloading pandas-0.13.1.tar.gz (6.1Mb): 6.1Mb downloaded Running setup.py egg_info for package pandas warning: no…
Jamie Bull
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17
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3 answers

How do I run a command line command in a Python script?

I'm using 2 separate scripts, Scale1.py and Scale2.py. To run them I enter sudo python Scale1.py or sudo python Scale2.py from the terminal command line. I would like to have a line in the Scale2.py script in which if I press a button, the program…
Rico
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17
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1 answer

How do I set up ssh keys to log into my RPi

Using ssh keys to log into your RPi is much more convenient than typing the password everytime. It's especially handy if you want to log in from automated scripts or use programs such as scp or rsync So how do I set up ssh keys to log into my RPi?
John La Rooy
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17
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1 answer

Run all online traffic through an PPTP VPN connection

I would love to run all outgoing traffic (particularly torrent and web) through an PPTP VPN connection (to be specific a StrongVPN.com VPN). Everything needed to setup and more important to startup the VPN connection should be done over SSH, so…
terman
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17
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2 answers

How do I read a button through the GPIO?

I considered myself out of this sort of beginner level stuff a long time ago, but I guess I'm not as smart as I thought I was because I seem to be having an exceptional level of trouble with it! So I've finally finished exams and can play with my…
Michael
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17
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3 answers

If connected over HDMI will the 3.5mm audio jack socket work?

As far as I know only one video output, either the HDMI or RCA video socket, will work at a time. Now I want to know if this also applies to the audio output. Will it be transmitted over both sockets, or does the 3.5mm audio jack socket stop working…
k0pernikus
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17
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3 answers

How can I get and install Oracle's Java JVM for Raspbian?

A recent press release from Oracle suggests that they have just released a JVM for Raspbian. The key text is: Java SE 7 Update 6 introduces a JDK for Linux on ARM v6 and v7 to address “general purpose” ARM systems, such as those used for the …
Darren Wilkinson
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6 answers

Can I clone my entire Raspberry Pi for deployment onto another Raspberry Pi?

I'm not sure if all the "how to backup your SD card" topics is what I'm asking for... but here we go :) Is there a way I can make a 100% clone of my Raspberry Pi and just deploy it onto another Raspberry Pi? So I have two exactly identical copies...…
naboovalley
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17
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1 answer

How do I run a media server?

I want to be able to serve files from my external hard drive through my Raspberry Pi to my network. Essentially using the Raspberry Pi as a network interface for my External Hard Drive, and allowing my other devices (game consoles, tablets, PCs,…
Kyle Macey
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17
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3 answers

I want Raspbian and Retropie; how do I get both?

How do I install Retropie on a Raspberry Pi that already has Raspbian installed? At the very worst I can use BerryBoot if I need another OS.
givensnickel
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17
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1 answer

What is the difference between Raspbian kernels in official image?

In the official Raspbian "wheezy" image (2012-07-15), there are three Kernel images: kernel.img (6MB) kernel_cutdown.img (4MB) kernel_emergency.img (16MB) I'm curious what are the technical differences between these? When might it be beneficial to…
McKAMEY
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17
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2 answers

Driving a 15 KHz RGB monitor

I'm interested in the prospect of using a RP to run MAME in a real arcade cabinet. The easy way is to replace the cabinet's monitor. However I'd really like the authenticity of keeping the original 15Khz RGB monitor. Does anyone have any suggestions…
slim
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