Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

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1500 questions
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Objective C enviroment

Do any of the standard distributions come with an Objective C environment? Is there anywhere to get prebuilt Objective-C compiler and libraries? I would prefer an answer which is based on Clang/LLVM but will settle for something based on gcc.
Maria Zverina
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How do you configure the Pi Zero to act as a USB webcam using the plug in camera?

There are lots of guides which tell you how to configure the raspberry Pi Zero as a mass_storage device or Ethernet device, most of these mention the ability to make the Pi act as a webcam but none have explained how to do it. I've tried following…
user3797758
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2 answers

HTTP Live Streaming

I current have a setup using Motion to stream video from a webcam attached to a raspberry pi. Unfortunately this is quite low quality and has a poor frame rate. I am looking into using HTTP Live Streaming, but details about this a vague at best…
Eddie
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Game platforms emulators on Xbmc/Openelec

Is it possible to run emulators on Xbmc/Openelec? I am familiar with an addon "Rom Collection Browser" and as my understanding of this plugin is that it can launch various games with different emulators. However I haven't managed to do anything…
Merstzik
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5 answers

Using an old laptop keyboard with Raspberry Pi

I have an old laptop keyboard like the one shown below: It has a 24-wire flat cable coming out of the back. Would it be possible to use this as a keyboard for the Pi (I assume with some microcontroller in between)?
Jakob Weisblat
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How can I build MongoDB?

It seems to me like there's currently two way to go about this: https://github.com/skrabban/mongo-nonx86 https://github.com/RickP/mongopi I settled for the mongo-nonx86 fork. I installed the dependencies as described in Install Mongodb in…
Oliver Salzburg
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Raspberry Pi 3: microSD card vs hard drive

In my bachelor's thesis I compared the speed performance of a hard drive connected via USB adapter with a microSD card. I was challenged to answer the question "Why is the difference in speed drives and memory cards especially noticeable in longer…
sunny
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3 answers

How to install GNU C++ Development Tools on Raspberry Pi (using apt-get)

Is there a well-known package I should install for C++ Development Tools? What do I type at the command-line after sudo apt-get install? Ideally, I want the same tools that were installed with "MinGW" on my Windows computer.
imulsion
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RPi as a Sound Level Meter?

For my daughter's science fair project (Computer Science and Math category), she'd like to use the RPi to go around and measure whether different loud sounds are above the threshold of pain and are damaging our ears. She's a 6th grader, but she has…
user5769
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5 answers

Raspberry pi remote access active session

When I remote access the raspberry pi with software now installed I do not get to access the current session displayed on my tv, but rather a new session. Is there software to access the current running session so I can use the keyboard and mouse…
Tom
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5 answers

Can the Pi camera module be used with a longer cable?

It appears the Raspberry Pi camera module v2 includes a 15cm ribbon cable, to connect it to the Pi. But I would like to have the camera sited further from the Pi, maybe a few metres away. So can this cable be extended, or replaced with a longer…
vclaw
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3 answers

Reduce Ubuntu mate 16.04 img file size

I downloaded the official ubuntu-mate-16.04.img.xz (which is about 1.1GB) and extracted it. But the extracted .img is about 8.1 GB which is about 162 MB larger than the size of my sd card. So, I can't restore the .img to sd card. In other words…
Ashwin Kumar k
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Low bandwidth internet over VPN

I've just finished setting up a VPN'ed NAS with my newly acquired un-overclocked Raspberry Pi Model-B and I've run into something I can't find an answer for elsewhere. The internet bandwidth, as determined using wget --output-document=/dev/null …
dbrane
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5 answers

Restore PI from Pi itself

Just started playing around with a raspberry pi model b+ I've had sitting around for ages and I had a question? Is it possible to restore a Raspberry Pi from itself? E.g: Can I put an image on the microSD card, and then reboot the Pi to install the…
TommyBs
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2 answers

Which GPIO pins are usable without any modifications?

I've found that many of the GPIO pins are not usable on a stock installation of Raspbian with gpio-admin. For example, I wired up a relay to GPIO 21 only to find after some debugging that it didn't work as desired. Its neighbors GPIO 17 and GPIO 22…
notlesh
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