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18
votes
5answers
68k views

Raspberry Pi as an Email Server

I just got my Pi today, and of course I can't even use it because I got the wrong HDMI to DVI converter but that's besides the point and question. My question is the following: I have decided to ...
2
votes
3answers
6k views

Wireless surround sound using Raspberry Pi?

I was looking into some Bluetooth/Wireless audio solutions and wasn't a bit taken aback by what it costs for something that would actually work well. The I looked at my Pi and started formulating a ...
2
votes
4answers
23k views

Run startup application as a specific user

Quick question, is it possible to run as non-root for applications, automatically started when the pi is booted? I'm having performance and memory issues when my pi starts a homebrewn spotify-client ...
8
votes
2answers
31k views

Why is my disk space suddenly full?

Suddenly, my disk is full and I don't really know why. How can I find out? pi@raspberrypi ~ $ df Filesystem 1K-blocks Used Available Use% Mounted on rootfs 3749072 3558828 0 ...
5
votes
2answers
4k views

Network monitor by Process

Is there anything that allows me to monitor network usage by process for longer time (1 day +-). I know nethogs but it only shows current process and I need longer period to be monitored and probably ...
2
votes
1answer
3k views

Cheap USB powered hub to work with the pi without backfeeding

I am trying to build a 3D printer farm with the pi, and I need a large USB hub. I found this hub. But don't know how to evaluate if its any good. Has anyone tried something like this? Do you have a 7+...
3
votes
2answers
1k views

Emulating “Baking Pi”

Evening! I'm running through the amazing Baking Pi tutorials, which actually convinced me to buy an rPi in the first place. I realize I (obviously) can't emulate the "status" light, but I read all of ...
6
votes
6answers
19k views

Stuck in a rebooting loop

I've read other related questions here and around other forums but none have helped me so far. I do get the rainbow screen (just a sort of RGB color selector) and some console feedback: That is the ...
2
votes
4answers
3k views

UART sends but not receives but works if tx-rx are bridged

I have this strange problem... When I connect TX and RX pins together (GPIO 14 and GPIO 15, Rev1) and I run minicom, I see everything that I type... so it works. But when I connect TX RX with an USB ...
1
vote
2answers
862 views

unable to login in raspberry.. please help me out

I changed in setting under sudo nano /etc/default/keyboard XKBLAYOUT="in" I know i made some mistakes here "in" is not any standard but after rebooting my system am unable to login in my device ...
0
votes
1answer
138 views

How difficult would it be to compile QuiteRss for the RPi?

How difficult is it to compile an existing application that I know is already compiled for linux and windows? The application I have mind is QuiteRSS 0.13.0 RSS/Atom feed reader written on Qt/С++ www....
2
votes
4answers
11k views

How to share desktop's connection with Raspberry Pi?

Actually I have a single ethernet port on my router for connection. So that I can only get my desktop working with my router. Now I wanted to connect Raspberry PI to the internet through router. This ...
1
vote
2answers
130 views

Can I compile R-Pi programs (Qt) on R-Pi itself?

I want to create GUI in Qt and would like to know if I can compile and test the programs on the Pi board itself. That way, I only need to connect to R-Pi using SSH and modify code, compile and test it ...
7
votes
1answer
4k views

Can the R-Pi get damaged by body static charges?

When working with another computer-on-a-board, my instructor warned me not to touch the board components as body static charges may damage it. Is R-Pi just as sensitive and will likely get damaged ...
1
vote
3answers
10k views

Keyboard incompatible with Raspbian

My Logitech K100 keyboard is not working with Raspbian. I first installed the NOOBS OS available at http://www.raspberrypi.org/downloads. After booting into NOOBS I installed Raspbian. But after ...
2
votes
1answer
1k views

Multiple Raspberry PI web servers with fail over?

What I have: 5 Raspberry PI running the same software software stack each one has a priority (lower number is higher priority) index and monitors the other 4 via udp One lan all 5 pis ping the rest ...
3
votes
2answers
1k views

OMXplayer pexpect loop screen blacks out

I Run omxplayer in a loop with pexpect via python. After a period of time, the screen blacks out and the pi is unresponsive to keyboard input. I have hostapd running and it responds by sending me back ...
3
votes
2answers
17k views

Can RPi be used to stream internet TV shows from web pages?

Since turning off my cable TV, i would like to view some of my TV shows from the various network websites. Can i use RPi to do this, so i don't have to invest in a larger PC or laptop for this minimal ...
1
vote
2answers
2k views

Effect on ping response when using Raspberry Pi as firewall (lag, jitter)

I've been looking for some good information about using the Raspberry Pi as a simple home firewall / router / DHCP server, to separate my home network from the supplied ISP router. I've seen this ...
2
votes
2answers
3k views

controlling two motors with an L293D

Update: Can I possibly use the TLC5940 to control two motors? So there is a lot of talk about controlling two motors. My plan is two build a RPi robot and at minimum I need to have it control ...
11
votes
2answers
24k views

NOOBS recovery password

I have installed a new kernel, but for some reason, it won't boot. I generated the kernel.img with imagetool-uncompressed.py, but now my Raspberry Pi fails to boot. I have made a backup of the old ...
1
vote
3answers
934 views

Wayland/Weston freezes

I have freshly installed last Raspbian and updated it. When computer boots up to console, I log in and start command weston-launch. The output of command is something about initializing Raspberry Pi's ...
0
votes
2answers
3k views

Relay working at 3.3V for RPi?

I need to use my RPi to control a relay which switches on/off an electrical circuit. I got a relay board but it seems that works only when used at 5V. I'm a noob so please go a bit easy on me.:P ...
0
votes
1answer
367 views

Seeeduino TFT and RPi?

I have a spare 2.8" TFT Touchscreen from Seeeduino and I've been thinking about attaching a screen onto a RPi. However, I am not very familiar with hardware/electronics. My screen uses 8 data lines +...
4
votes
2answers
13k views

Use the Raspberry Pi as a Git server [closed]

How do I settup Git as a Git server like GitHub, so I can create private repositories, etc.? I have installed LAMP. It's up and running smoothly and also Git with GITWEB works perfect. The only thing ...
3
votes
3answers
22k views

Will Terminating an SSH Connection Also Terminate any Program running?

I am using my RPi to measure the temperature of my fermenting homebrew and store it in a MySQL database via a python program. Two days ago, I SSH'd into the RPi from my labtop and executed the python ...
2
votes
3answers
912 views

How to play my music on my RPI outside my local network

I have ripped all my CDs to a hard drive. The hard drive is connected to my RPI at home, and I use it to play my music on my stereo and control it with my mobile using WIFI. Currently I'm using ...
2
votes
3answers
2k views

How can I stream music from a different machine?

I have a Raspberry Pi connected to a sound system via the jack output. I'd like that the output of the sound card of my laptop was redirected to the Raspberry Pi. I have read about mplayer daemon or ...
2
votes
1answer
6k views

setup internet connection through pppoe

i'm new to raspi/debian. I need to connect my raspi, for the first time, to internet. As the PC i need to establish an pppoe link to my router as required from my internet service provider. I don't ...
1
vote
1answer
925 views

Trouble getting RPI wireless card into monitor mode

I have an RPI Model B with a wireless card, Belkin N150 Rev.B01 I am having a tough time getting airmon to work or setting wlan0 to monitor mode. I am able to use wicd to connect to my wireless ...
14
votes
4answers
45k views

How can I lower the usage of CPU for this Python program?

I will be having a Python run 24/7 in a while loop, here is an example of the sort of program: while True: print ("me again...") But when I run it, my CPU goes to 100%! But I don't want that ...
7
votes
4answers
13k views

Which database to use with node.js and raspberry pi?

I installed node.js on my Raspberry Pi. But now I'm wondering what database I should use for it. I'd like it to be an easy solution. The easier to work with / fast installation / the better. I saw a ...
2
votes
1answer
11k views

troubleshooting raspberry pi booting with the green led light

Update : I've downloaded and copied the NOOBS images from here. Checked the hash, and when I run it on the Pi the green light blinks once and then only the red light is on. Nothing else happens from ...
0
votes
2answers
1k views

Does anyone know of any Accelerometers that are easy to use in Python

I'm fairly new to GPIO programming and robotics with the Raspberry Pi, and was wondering what I should look out for to avoid pitfalls later when buying an accelerometer. I've heard that the GPIO pins ...
3
votes
1answer
2k views

Multiple H264 video windows with gstream 1.0: Possible?

I managed to install gstreamer 1.0, and obtain a H264 streaming form HD surveillance camera, Axis 1054. I had to use gstreamer 1.0, as omx player seem to lock after a second of camera streaming or ...
4
votes
1answer
3k views

Image processing on embedded system - raspberry PI or other board?

I need to write a program that does some LK optical flow calculations on an USB webcam feed using OpenCV. This has to be on an embedded system. I currently own a Raspberry PI revision A coupled with ...
3
votes
1answer
2k views

Attaching /Detaching interrupt in C Programming

How do I attach/detach interrupts in C language. I am currently working with GPIO Pins of Raspberry Pi and want to convert statements which I used for arduino: attachInterrupt(); detachInterrupt(...
5
votes
2answers
8k views

How the usage of ZRam module in Raspberry Pi Kernel improves performance?

zRam increases performance by avoiding paging on disk and instead uses a compressed block device in RAM in which paging takes place until it is necessary to use the swap space on the hard disk drive ...
3
votes
1answer
2k views

SNES usb controller adapter - some input not recognized

I just received the Retro Link SNES Controller USB adapter I ordered to use with RetroPie, however upon launching EmulationStation, the "Up" button and the "left" button on my snes controller is not ...
8
votes
8answers
28k views

Setting the time on the raspberry PI - one day out - what gives?

So I understand that the Raspberry PI works some magic with internet servers and whatnot to get its time and that I need to wave some magic dust over the localtime link and possibly /etc/timezoneinfo ...
0
votes
2answers
4k views

Start and run a Python script at boot and use Cron to make sure its still alive

Hopefully someone can tell me if I'm going at this the right way. I have a Python script which I want to launch at boot. That was easy enough by putting a file in /etc/init.d/myBootFile I want to ...
2
votes
3answers
5k views

Starting Python Program with Screen Automatically

I'm trying to turn a headless Pi into a single purpose computer. The application I wrote uses a ncurses GUI and I want it to start on boot. The program also needs to be run on a separate 'screen' (...
4
votes
0answers
2k views

Can't connect RFCOMM socket: Permission denied [closed]

00:1A:7D:11:C0:66 is a headset. sdptool search --bdaddr 00:1A:7D:11:C0:66 HS results in Searching for HS on 00:1A:7D:11:C0:66 ... Service Name: Headset Service RecHandle: 0x10001 Service Class ID ...
2
votes
3answers
6k views

How to set up a wireless AD HOC network if there are no other networks are available

I have a Wifi dongle for my Raspberry Pi and have it automatically connecting to 2 different Wifi networks via the wpa_config GUI. How can I get my raspberry pi to set up an AD HOC network if it can'...
0
votes
2answers
1k views

How is internet bandwidth allocated in a customized router using Raspberry Pi?

I have a project of configuring a Raspberry Pi into a router. I would like to know how the Raspberry Pi allocates the internet bandwidth with its users? Let's say a 3Mbps internet speed is connected ...
1
vote
2answers
4k views

Internet access via 1 of 2 Network interfaces

I have a plugged in via ethernet to a router upstairs. This router has no internet access. I SSH and VNC to this pi from my laptop with no issue. I connect the same pi to a wireless network via the ...
5
votes
3answers
16k views

Will a 2.1 Amp MicroUSB charger be OK for the RPi?

I know the RPi needs a 700 mA MicroUSB charger, but can it handle a greater amp, namely 2.1amp?
2
votes
2answers
150 views

Are there any sites dedicated to developing expansions for the GPIO port?

I am surprised on how there seems nothing developed for the input/output pin on the Raspberry Pi. So the question is, are there any sites (websites) that host projects of shields or similar for the ...
1
vote
1answer
2k views

Playing M4V files (H264) via Wifi on iOS using the RPi as an Access Point doesn't work

I want to play videos, located on an USB disk which is connected via a powered USB hub, on my iPad(s). I converted these videos from .MKV to M4V (H264 codec) with HandBrake on Windows 7 using the ...
1
vote
2answers
548 views

Can executable code be run from the SD card without a bootloader?

I'm following Baking Pi and am just on lesson 1, which is the simple introductory ARMv6 code to turn on the OK LED on the Pi. I have compiled the code I've written and now the tutorial says to use an ...

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