Raspbian is a Linux operating system designed for the Raspberry Pi and based on Debian for ARM processors. A stable release version has recently become available, and the Raspberry Pi Foundation are now recommending Raspbian (over Debian) as the standard distribution for the Raspberry Pi.

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automation systems using raspberri pi for real world

i am designing a smart home system using raspberry pi GPIO, with internet connection and flask, but i heard that there is a company called KNX that produces hardware and software for smart homes and ...
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8 views

Script to log temperature [on hold]

I have been trying to write a BASH script to log the pi's temperature. My plan is to run it as a crontab every 15 mins or something. However I keep getting errors, I think it's something to do with me ...
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ethernet usb ports are dead

All ports were functioning properly yesterday until "rpi-update". Then after reboot, they stopped functioning and red light started blinking. I changed power supply. Red light is stable now but ports ...
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1answer
10 views

Auto Start a .py file with LXTerminal

I want to start a .py file after booting with LXTerminal. I'm using raspbian OS I try these steps: I edited sudo nano /etc/xdg/lxsession/LXDE-pi/autostart with @lxterminal and this is open ...
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12 views

Running a Pi2 with berryboot rasbian/openelec/retropi on a old-fashoned composite TV

Is there a way to get Berryboot to start with composite output? And if so, do i also need to reconfigure every OS on the SD card to output video on composite? (im pretty sure its a yes on the 2nd ...
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26 views

Access Raspberry Pi from anywhere does not work [on hold]

I'm trying to access my rpi from anywhere and not just from my local network. I have installed Raspbian and then install php-fpm and nginx. When i'm logged in my rpi and execute "wget 127.0.0.1" it ...
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0answers
10 views

Giving permissions to user for samba [on hold]

I am using Samba to share a folder on a USB drive from my Raspberry Pi and it works except for the permissions. From my windows computer, I cannot write to the folder with the issue: I am following ...
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1answer
9 views

mcp adc3903 interface with Rpi

I am interfacing mcp3903 adc with Rpi for my final year project which is phasor measuremenrt unit.i found a code given below.can anyone kindly help me in understanding this
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1answer
19 views

Python CGI not working correctly from web browser [on hold]

I am new to python , I am trying to write my first python-cgi program I edited the default file inside the sites-avilabe directory and here it is: <VirtualHost *:80> ServerAdmin ...
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1answer
32 views

Truncating SD image

I backed up my raspbian with dd dd id=/dev/sdb of=/home/user/raspbian-backup.img That gives me a img of the whole card (16gb). Then i followed the tutorial in raspberry.org to resize the image and ...
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18 views

Raspberry Pi and Serial Communication

Have you heard of MOXA? I have 2 Uport MOXA devices that would simulate as devices to be connected to com ports. Before this I use these 2 devices to create a program on windows that is able to send ...
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1answer
40 views

What is Mathematica For?

I recently started looking into the pre-installed programs that come with Raspbian,and I saw Mathematica. I opened it and it was some sort of terminal. My question is what is the use of this program? ...
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3answers
37 views

I cannot open any ports on my router. So is there anyway that I can still use Lighttpd server to display my over web?

My ISP does not allow port forwarding and therefore I cannot open any ports on my router. So is there any way that I can still use Lighttpd server to display my database over web? I am writing a ...
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1answer
57 views

Optimal boot time

As I'm designing an embedded product, I really need fast boot. I have: between 20 and 25 seconds with standard Raspbian Wheezy from raspberrypi.org, around 10 seconds with ArchLinuxArm ...
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3answers
33 views

RaspberryPi (Rasbian) name resolution does not work in a non-internet network

My raspberrypi (Raspberry Pi 2, Model B) has a network name (raspberrypi). I did not do any changes on the network configuration. When I connect the Pi to a network that has internet connection, I ...
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1answer
74 views

Error “/lib/modules/3.18.7-v7+/build No such file or directory” when compiling drivers for wifi dongle

I'm trying to follow this instruction: $ git clone https://github.com/porjo/mt7601.git $ cd mt7601/src $ make $ mkdir -p /etc/Wireless/RT2870STA/ $ cp RT2870STA.dat /etc/Wireless/RT2870STA/ $ insmod ...
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4 views

Can an RPi2 core be dedicated to one user-space app? [migrated]

Can an RPi2 core be dedicated to one user-space app, for the purpose of bit-banging GPIO without any interruptions?
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16 views

How to get correct partitioning without“.img” file?

I had an image file which I wrote to a micro sd card(for the Raspberry Pi). However, I deleted the .img file when I was done, thinking I would not need it again. Then I decided I wanted a new image on ...
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12 views

Errors with ZTE modem on Raspbian/RPi2

I'm having serious trouble getting a ZTE Mf180 USB modem to work on a Raspberry Pi 2 with Raspbian, using pppd to connect. Usb_modeswitch is working almost flawlessly (sometimes I have to re-plug the ...
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0answers
16 views

Use buzzer on ttyUSB [closed]

I have a device mounted on /dev/ttyUSB0 (This is a PN. This device has a speaker (PK12n40peq). How can i play a beep on this buzzer with Raspberry ?
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32 views

WiFi turns off automatically on raspberry pi

My pi's wireless network go off after 12 hours. I have a cron job which sends some data to a web address each 15 minutes, so the internet connection is always active for my Raspberry pi, and logically ...
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1answer
74 views

Is it possible to install Qt5 on Ubuntu MATE or Raspbian with Raspberry pi 2?

First of all, I'm not sure if I should be asking this here, or on stackoverflow. But, here will be my first shot, if it's not the right place, just tell me and I'll move the question elsewhere. Ok, ...
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8 views

IRW does not show any thing

I want to use an infrared remote control. I'm using an infrared diode tsop38238. first I disabled the device tree because mode2 did not work at the beginning. After disabling I recorded my remote ...
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1answer
32 views

Pub/Sub between computer and Raspberry Pi

So I am using the python bindings for ZeroMQ in an attempt to send messages to several raspberry pis on a network for an art project. The issue is that I am not receiving any messages on the raspberry ...
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1answer
29 views

Raspberry pi B+ freezing while update

It's already 2nd time of same occurrence. I was performing sudo apt-get update and in the middle of downloading package, it freezes. Is this a device problem or some kind of my setting problem? All I ...
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15 views

Raspberry pi ROS rviz segmentation fault [closed]

i recently installed ROS on Raspberry pi 2 in order to implement SLAM algorithm on it every thing went verry well until i run the rviz (rosrun rviz rviz ) i get segmentation fault msg . any body have ...
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2answers
44 views

Network doesn't work, new raspbian on pi2

i do not seem having luck with my raspberry pi 2. So basicly i have no possibility to connect my rasppi to a monitor or tv, so there is no way i can find out whats wrong. Next thing is that i also ...
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2answers
41 views

What are the possible ways to control raspberry pi over internet rather than static ip?

I mounted a raspberry pi B+ with gps in my car. And I'm using 3G Modem to send data from raspberry to my server. But I want to control raspberry pi over internet. For instance, sometimes I need to ...
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1answer
24 views

How do I install the Zenvoid desktop on Raspbian?

I am trying to create a touch friendly mobile device. To achieve this, I need a touch-friendly desktop environment. Based on my findings, it appears that the Zenvoid desktop would be the best option, ...
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7 views

Are images built on a B2 the same as images on the B+?

I have a stock Raspbian image I built on my B+ a few months ago. I now have a B2. Does downloading the latest Raspbian image result in the same system as running sudo apt-get update && ...
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15 views

Raspberry already compiled opencv no working

I tried to compile opencv but at 55% I get some sort of error about not enough physical memory, so I tried a compiled library for raspberry from this link. After I moved *.so files into ...
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1answer
86 views

How to change raspberry pi 2 overclock to default on Raspbian

I've been wondering how I could reset my raspberry pi 2 to its stock clock after I used the raspi-config utils. The only options I had were primarily for the first Raspberry. There's no "default" ...
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1answer
30 views

What File is responsible For the Login Script

My question is simple; what file(I assume it is a single file) is responsible for the login Interface you see when you try to log into the pi? I have not been able to locate it and all my searches end ...
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0answers
28 views

can't install node epoll

I'm trying to install epoll on my pi(RPi 1 model B 700Mz 256MB). And only because it's a dependency of onff. It's related to this question. My node version is:v0.12.0 I'm running this command: sudo ...
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2answers
54 views

Random Freezes on B+

My Raspberry Pi B+ has started to freeze randomly for a few seconds only to continue as if nothing has happened. I'm connecting over SSH only (no keyboard/monitor) and at least once a minute it will ...
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2answers
39 views

Raspberry Pi 2 flashing Rainbow Screen during setup

Ok, so this is my first ever time using a raspberry pi and I really need some help with the setup. I am connected to a monitor and trying to install the NOOB and Raspbian software on to the rPi. I ...
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27 views

how to raspberry pi hindi language with speech recognition [closed]

My project is home appliance by speech recognition So I am leaving form India That are not understand people like us tone English by speech properly. Plz help how to Hindi speech in raspberry pi and ...
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1answer
25 views

execute GTK app from SSH terminal

I installed bluetooth-sendto in raspberry. but when i want use this app via bluetooth-sendto --device=6C:0E:0D:3A:1F:90 ~/WORK/TEST.mp3 give me error : ** (bluetooth-sendto:28746): WARNING **: Could ...
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0answers
67 views

Pi stuck in a DHCP loop

I have a Raspberry Pi running Raspbian, connected to a PC via its ethernet NIC and set to DHCP. /etc/network/interfaces on the Pi: auto lo iface lo inet loopback auto eth0 allow-hotplug eth0 iface ...
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1answer
45 views

Broadcasting Raspberry Pi Camera Over Hotel Wireless Internet [closed]

I am interested in configuring my Raspberry Pi to be able to stream video from the standard Raspberry Pi camera to a website. However, I am on travel with my Raspberry Pi and will be limited at times ...
1
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1answer
67 views

Proper configuration for wpa_supplicant.conf

From my Raspberry Pi 2, I can't connect to my wifi college: sudo ifup wlan0 returns: ioctl[SIOCSIWAP]: Operation not permitted ioctl[SIOCSIWENCODEEXT]: Invalid argument ioctl[SIOCSIWENCODEEXT]: ...
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0answers
35 views

/dev/lirc0 does not exist

I want to use an IR diod receiver. I installed lirc but when I write to terminal this code: mode2 -d /dev/lirc0 it says mode2: could not get file information for /dev/lirc0 mode2: ...
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1answer
55 views

Raspberry Pi2 crashing when running camera (streaming video)

Running headless with: Linux weatherpi 3.18.11-v7+ #781 SMP PREEMPT Tue Apr 21 18:07:59 BST 2015 armv7l GNU/Linux I am using the raspberry camera module. I can stream video, I've tried both motion ...
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1answer
24 views

Edit size of /root partition BEFORE writing it to SD card?

I have downloaded the latest Raspbian IMG (not NOOBS) onto my Raspberry Pi using wget http://downloads.raspberrypi.org/raspbian_latest I then extracted it. I can mount the root partition to see ...
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25 views

VCHI initialization failed

When I run vcgencmd measure_temp in the terminal, it gives the temperature reading of the Pi cpu. But when iI use the same command in php exec('vcgencmd measure_temp 2>&1') it gives followwing ...
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2answers
43 views

Timeout issues with Raspberry Pi 2 on network

I am running a small web application on Raspberry Pi 2 (OS latest Raspbian, and no overclocking, samba installed) which runs on Apache, PHP, and MySQL. The web app lets users punch a simple tickets ...
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3answers
41 views

Raspberry Pi streaming without being connected to Monitor or TV possible? [closed]

I'm working on a project for my undergraduate studies in which I will mount a raspberry Pi on a RC car and hopefully get it to stream to a laptop using wireless adapter. My question is that is it ...
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1answer
48 views

Raspbian: reduce number of tty

When my b+ (raspbian 3.18.12+) boots, it actually loads 6 tty. Is there a way to reduce the number of tty?
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4 views

wpa_supplicant.conf with two network cards not working when wpa-roam

I need to use two different network dongles in a Raspberry Pi (one realtek and one tplink) for two different networks. My wpa_supplicant.conf looks like this: ...
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2answers
50 views

Terminal command will not execute after boot

I have a raspberry pi which I want to turn into a web server. I have installed everything needed. Now my problem: I am using ngrok to get the server online. To do this all I have to do is running the ...