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0
votes
2answers
664 views

Why are the buttons that I am using with my Pi inverted?

I am using an NES as a Pi case. I want to wire the power button to the Pi to do some commands. I have connected one cable to GPIO 1 and another with a 10K Ohm resistor to GPIO 17. I found this command ...
3
votes
1answer
6k views

RaspberryPi as a passive Man in the Middle

I think about using a Pi to sniff LAN traffic in an fixed environment. Main problem is that the Pi should not have an IP adress nor being "visible" in the network. I got an second lan interface (USB) ...
0
votes
1answer
1k views

How to connect slotted opto to raspberry pi?

I am trying to connect slotted opto ( TCST2300 ) to raspberry pi. I would like to receive 1/0 on GPIO input pin. Programming is not a problem but the circuit is. I referred following circuit But it ...
4
votes
1answer
7k views

Tar extract error - implausibly old time stamp 1970-01-01 01:00:00

I was create a tar script to make a backup of / directory on flash drive with exluding these folders: /lost+found - /mnt - /media - /proc - /sys - /tmp Here's a fragment of script: sudo tar -...
37
votes
4answers
61k views

How can I mount a Raspberry Pi Linux distro image?

Normal filesystem images can be easily mounted: mount system.img /mnt Examined, and modified. But when I try this with a Raspberry Pi system image (e.g. raspbian), I get: mount: unknown filesystem ...
0
votes
1answer
4k views

Invalid or corrupt jarfile error

I try to run a jar file with my Raspberry Pi which has Raspbian OS. First I followed these instructions https://wiki.debian.org/Java/ from that page I run ; apt-get install default-jre and apt-...
2
votes
1answer
636 views

Restore of Raspberry Backup

I tried this backup script described in another question "A working script from the Raspberry Community made by a member there", it runs with "pv" and "dd", but I was not able to properly restore it ...
0
votes
3answers
4k views

First time RPI user, Raspberrian installer won't boot, red light only

I seem to be one of countless scores of people who just don't seem to have the magic touch in getting this little machine to actually run. I will walk through the history of what I have done. Model ...
1
vote
1answer
5k views

Raspbian: Shairport doesn't work

I have Raspberry Pi with Raspbian. So, I try to install shareport with this tuturial. Everything installed fine. But I can't see Pi from my macbook. $ shairport -vv ALSA lib pcm.c:2217:(...
0
votes
1answer
68 views

Not powering down after installing upstart [closed]

I just installed upstart from the repositories, and I am now facing a strange behaviour: To properly shutdown (power down), I need to run shutdown -r then shutdown -h. To reboot it is the opposite (-h ...
3
votes
4answers
4k views

Can Raspberry Pi Model B be used as JEE applications web server?

I have learnt how to develop web applications with JEE technologies, working in Eclipse IDE, using Apache TomEE server and MySQL database. Until now, I was using local server instance. I don't have ...
0
votes
1answer
799 views

High usage of cpu and ram with while loop

I am trying to use switch for executing a script(Let say script_a). For that i wrote a if condition in another script(Let say script_b). script_b is always running when rPi is on. While input of gpio ...
1
vote
2answers
3k views

Packet sniffing with channel hopping using scapy

I have set up scapy on linux (raspian on RPI) for sniffing WiFi packets using WiFi adapter (b/g) in monitor mode. I am not sure if scapy by default hops on all the channels of the b/g protocol, or ...
1
vote
1answer
962 views

I am wondering if its possible to make a two way radio with Raspberry Pi [closed]

Is it possible to create a two way radio that transmits and receives with a mic and speaker and one button to send with a Raspberry Pi? Like a intercom box that works over two way radio frequency so I ...
1
vote
3answers
88 views

Ethernet Connection

My college Ethernet connection requires a username and password to access the internet. Is there a way to enter the username and password without using a GUI and lunching a web browser to log in? ...
0
votes
1answer
514 views

Getting sound working in Squeak

I've been experimenting with Squeak on my Pi and have got it up and running following these instructions: http://www.raspberrypi.org/forum/viewtopic.php?f=34&t=9046 However, I can't get the sound ...
0
votes
1answer
265 views

Pre-config Raspbian on Model A for WiFi [duplicate]

Still trying to parse this: https://raspberrypi.stackexchange.com/questions/10251/prepare-sd-card-for-wifi-on-headless-pi I have Mac laptops (older 2008 Macbook and MBA 2011) that I'm trying to use ...
0
votes
1answer
225 views

SD card problem

I have purchase raspberry pi with pre loaded NOOBS SD card. On installation I select rasbian then it proceed to install it then it display successful installation when I click the ok sign then it ...
1
vote
2answers
571 views

Samba on Raspberry Pi ->USB reset

I am using a Raspberry PI as a NAS (raspbian). Everything works quite fine, however Samba is giving me a bit of trouble. Basically what happens is, that on large file readings it kind of "hangs" after ...
3
votes
5answers
786 views

How to start working with Raspberry Pi?

How do I start learning Raspberry Pi? I know I need to learn: C/C++ programming Linux (Debian) Electronics What else is there? Also what books would you recommend?
1
vote
1answer
2k views

Bash script for exiting linux using sudo shutdown

I have a raspberry pi and run dosbox from the command line. Is it possible to write a script to run dosbox and shutdown Linux "sudo halt" after i have exited dosbox. something like #!/bin/bash #run ...
3
votes
1answer
725 views

Can the micro USB port be used for data?

To my current knowledge the micro USB port on the raspberry pi is used solely for power supply. But is is possible to also use this port for data? Is there a way to activate this function?
9
votes
1answer
9k views

Connecting to a Raspberry Pi TightVNC server isn't working with Screenshare on Mac OS X?

I have a tightvnc server set up on my raspberry pi on port 1 but when I try to connect to it from my mac using the built in screen sharing client i get an error: Connection Failed to:192.168.1.127:1 ...
3
votes
4answers
6k views

How to control a Traxxas XL-5 ESC directly from the GPIO?

I am trying to control the ESC (Electronic Speed Control) of my Traxxas RC car with my raspberry pi (rev.2). I have been looking through the internet and while I can find some projects that seem to ...
1
vote
1answer
797 views

Access the raspberry with the USB cable only [duplicate]

I would like to know how to access the raspberry pi using only the usb cable used to power it. Is there a way to setup an IP connection through the micro USB port it like we do with firewire ...
0
votes
1answer
599 views

setting path variable via SSH to other user than root

I try to install node on my RPi using this tutorial But when I type "node -v" to test it doesn't provide any output: pi@raspberrypi ~ $ node -v whereas the complete path does: pi@raspberrypi ~ $ ...
0
votes
2answers
121 views

Booting Raspberry Pi for the first time!

I have already written raspbian to the SD card successfully.But nothing happens when i insert it into the raspberry pi.Only the red light glowing.Nothing shows on the computer screen.
3
votes
3answers
3k views

Updating kernel/firmware to specific version

I've updated my rPi to the latest kernel/firmware using rpi-update and my Bluetooth dongle stopped working. I found this to be a known bug in 3.10.* branch of the kernel. Through tinkering and ...
0
votes
1answer
163 views

How to resolve patchy audio playback in OpenELEC?

I've installed OpenELEC without modifying any configuration settings, so it's the default installation of 'Frodo'. I've added a video source on my NAS, both with NFS & SMB when I attempt to play ...
1
vote
2answers
2k views

Start Raspbmc via Logitech Unifying receiver

I have a my Raspbmc connected to my TV and i control it with a Logitech Unifying receiver Keyboard (Logitech k400). On this Keyboard there is a Power-Button that can turn on the connected PC, but it ...
3
votes
4answers
31k views

Executing a jar file when Raspberry boots up

First of all I am a newbie for Linux. And as I mentioned at the title of my question, I want to execute a jar file, when Raspberry boots up. I have Raspbian OS in my Raspberry PI device. Thanks for ...
0
votes
1answer
4k views

After I remove swapfile, I can't do anything! How can I revert this problem?

How can I extend the life of my SD card? I run 2 commands in sudo su mode, and restart my pi. What I run: # swapoff --all # apt-get remove dphys-swapfile # reboot After that, I notice that I can't ...
0
votes
1answer
313 views

Can one use 2 Ampere power without frying pi?

My requirement is to sniff WiFi packets, for which I've heard that we need more current into the chipboard. I've figured out that around 1 A for raspberry and 1 A max for WiFi adapter should suffice. ...
0
votes
2answers
856 views

WiFi USB adapter for monitoring on the cheap [closed]

I want to buy a WiFi USB adapter which would allow me to monitor the packets using tshark, and it should preferably be cheap. I'd also want to know if there are cheap WiFi USB adapter with antenna ...
1
vote
1answer
671 views

ip forwarding from linux pc?

I was looking into forwarding/routing my linux computer's traffic through my raspberry pi to the router to the internet, is this possible? I currently have a vpn set up on my rpi with hamachi, and ...
1
vote
2answers
587 views

Installing Raspbian from NOOBS?

I've used my Raspberry Pi before mainly for XBMC (so I know it works and my power supply is okay, etc.), but I want to learn to program a little better, so I've started trying to install Raspbian. ...
2
votes
3answers
3k views

Configuring Rpi as a Privoxy-protected Access Point

I am trying to configure my Rpi as a privoxy protected access point for all devices connected to it. I was successful in configuring the Rpi as a wifi access point and I successfully installed and ran ...
1
vote
1answer
281 views

Are there alternative languages to python for controlling a PiGlow?

I've seen lots of references to python for controlling the display on a PiGlow. Are there any alternative languages available? I could learn python, but if there are others I might use them instead. ...
2
votes
2answers
95 views

List of supported software versions?

I saw a few questions, which are asking for the latest version of package/lib/software named XY, so I do believe that a more general question, which could help other looking for some package/lib/...
0
votes
2answers
4k views

Raspberry Pi restarts after connecting 2TB WD My Passport

When I connect my 2TB WD My Passport external USB 3.0 hard drive, Raspberry Pi reboots and fdisk -l does not list the hard drive. I think so there is some problem with my power adaptor, what should ...
4
votes
6answers
22k views

How do I change the Desktop wallpaper from the cli

I've tried gconftool and gconftool-2 to change the background on my Wheezy, but nothing happens. It would be nice to be able to do this from the command line.
2
votes
1answer
2k views

Maximum audio sampling rate with HDMI output

What is the maximum supported audio sampling rate supported with the Raspberry Pi's HDMI output? When I play 24 bit, 96KHz tracks in MPD, it appears to be resampling down to 48KHz, as reported by: $ ...
1
vote
4answers
1k views

Web-based relay control

I have seen various methods to control the GPIO pins via a web interface. A few include Python loop pinging for instruction in a MySQL db Running NodeJS as the scripting language and webserver ...
14
votes
8answers
51k views

Connect a GPU into Raspberry pi

I want to connect a GPU GT640 to a Raspberry pi model B. I know there is not a direct connection and the tranfer data are very differents but. Is there any chance to connect this devices in order to ...
0
votes
1answer
331 views

Raspbian not on SD Card after transfering

I have a 16gb SD Card and wanted to put Raspbian on it. So I first formatted it wih SDFormatter then I used Win32 to transfer Raspbian to the SD Card but when I go to the SD Card there's nothing there ...
3
votes
2answers
600 views

Why is 14 (board numbering system) listed as a GPIO pin, and not 13?

>>> RPIO.RPI_REVISION 2 >>> RPIO.GPIO_LIST_R2 (2, 3, 4, 7, 8, 9, 10, 11, 14, 15, 17, 18, 22, 23, 24, 25, 27, 28, 29, 30, 31) Pin 14 is ground, shouldn't this be pin 13 instead?
6
votes
4answers
29k views

Static IP on Arch Linux

How can I set up a static IP on my Arch Linux installation so I can easily SSH in? I followed this thread, but I could not get the static IP I set to work! Here's my /etc/netctl/eth0 file: ...
3
votes
4answers
1k views

System for determining occupied seats

I need an app that can do live monitoring of whether each seat in an auditorium is occupied, so visitors can load the app and see where to sit. The auditorium has a relatively flat ceiling 4m ...
2
votes
1answer
1k views

How to Make the DS18B20 Temperature Probes Plug into a Bread Board Easier

I use a RPi with waterproof DS18B20 temperature probes to measure the temperature of my homebrew. Every time I brew a batch I must sanitize the probe and insert them through the airlock into the brew, ...
1
vote
2answers
12k views

Run .sh file after LXDE enviroment is completely loaded

I want to run this working .sh file when I boot into the LXDE (preferably when it is completely loaded): mkdir /tmp/stream & raspistill --nopreview -w 1024 -h 768 -q 70 -o /tmp/stream/pic.jpg -...

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