0
votes
0answers
4 views

Boot Problems sh: can't access tty: job control turned off

I had one of the rf24 transceivers connected directly to the pi using jumper cables and everything worked fine. then I bought a case and was forced to use a ribbon cable. With out the transceiver ...
1
vote
0answers
10 views

Should I remove fake-hwclock because my i2c RTC isn't always plugged in?

I have a i2c RTC (rtc-pcf8563) that runs great, but I don't always have it plugged in; is there a way to test to see if the RTC is plugged in and, if not, start fake-hwclock or will I have to dpkg ...
0
votes
0answers
9 views

Arduino-Raspbery Pi bridges

I am building a small wireless controlled robot using the Arduino and the raspberry pi. It works by the user wirelessly connecting through to the raspberry Pi (using vnc or some other form wirelessly) ...
0
votes
0answers
11 views

Choosing an OLED / LCD Dispaly

I'm building a simple device where my Raspberry Pi talks to Google Calendar, and displays information about where I'm at on my office door. My code is all in Python It was simple until I started ...
0
votes
0answers
10 views

Wifi dongle not associating with driver

So I got one of those standard USB wifi dongles that just say 802.11n on them. I know it's a Realtek chipset, but I don't know exactly which one. Anyway, when I bought it I was told its was plug and ...
0
votes
0answers
6 views

External Hard Drive not recognized on reboot

Right now, I have an external hard drive that has its own power supply. When I first installed the system, it was able to recognize the hard drive, which I mounted and then added to the fstab. Every ...
0
votes
0answers
6 views

Curl/wget over wifi sporadically doesn't work

I'm using a Raspberry Pi model B with Raspian Debian Wheezy and a Edimax wifi usb dongle. Very often all 'web' traffic stops working on my RPI. I can ssh into it, DNS works, ping works, but curl'ing ...
1
vote
0answers
10 views

Processing keystroke input on startup

I am currently working on a project where I am using a Raspberry Pi (running Raspian Wheezy) to handle authentication to a locked door. I have a usb numeric keyboard plugged into my pi, and I have ...
0
votes
0answers
17 views

LED Printed Circuit for RPI

I have searched high and low for this but I have not been able to find anything close. Basically what I am looking for is a PCB which has a red and a green LED on it and already has the appropriate ...
0
votes
2answers
27 views

ImportError No module named thread

I want to make a simple thread that listens if a Button is pressed or not. I receive the error ImportError No module named thread. import RPi.GPIO as GPIO import time import thread ...
0
votes
0answers
7 views

What exactly is a DataFlash Board (AT34DBXX) and what use is just 4MB?

Along with my DVK511 board (which I am loving), one of the boards that came with it is a SPI interfaced AT45DBXX DataFlash Board (DataFlash Board ) it came with some sample source code, and via ...
0
votes
0answers
7 views

Raspberry Bluetooth dongle not detected by Android phone

I want to communicate between android phone and Raspberry via Bluetooth, the Raspberry can discover the android phone tutorial code . but the android didn't discover the Bluetooth dongle on RPI ...
3
votes
1answer
71 views

Play video from ssh to TV

I'm trying to only use my ssh console from android to remote control the pi, and I'd love to be able to play a video on my TV. My pi is HDMI conntected to TV always prompting for username. I'd like ...
1
vote
2answers
27 views

Can I use my Raspberry Pi as an AirPlay receiver?

Can the Raspberry Pi be used as an AirPlay receiver for video? Can I stream media from my iTunes library, or play a video from an iOS device via Airplay on the Pi?
6
votes
2answers
370 views

What hardware do I need to turn Raspberry Pi into a TV remote controller?

I would like to control my TV using a Raspberry Pi. I would like my Raspberry Pi to act like a TV remote controller. What kind of hardware do I need to make it? Do I need something like IR emitter, ...
1
vote
0answers
10 views

Trying to install Apache Traffic server armhf to raspberry pi

I have installed Apache Traffic Server into my raspberry pi. But whenever I try starting it i get segmentation error. anyone has any SD images that I can use that already has the Apache Traffic Server ...
1
vote
1answer
29 views

Permissions & Scripts

I am trying to run camera.sh which I made executable by chmod 755 camera.sh It works okay, but when I run it I get the error... root@raspberrypi:/home/pi/timelapse# ./camera.sh -bash: ./camera.sh: ...
1
vote
0answers
29 views

Wifi connection stops working

I am using a raspberry pi model b 512 MB with an Edimax EW-7811Un wifi stick and the raspberry pi camera. Power adapter has 2A/5V. OS is latest raspbian, kernel 3.12.25+. For the wifi stick, I have ...
1
vote
0answers
17 views

How to interface a Programmable Logic Controller (PLC) and Raspberry Pi?

I am currently doing a project in image processing using OpenCV and I will be cross compiling the program in Raspberry Pi and it has to communicate to a Programmable Logic Controller (PLC) for further ...
0
votes
1answer
16 views

Small display with no assembling

I'd like to buy a display for my pi (B+, I will by it as fast I can). But I can't find any options that does not require assembling. Display can be "anything", like character lcd ...
4
votes
2answers
36 views

What power supply should be used for the B+ model?

So I'm thinking about purchasing a RPi B+ model, and the Pi website states that the power supply should output 2A through a Micro USB supply. OK, but in terms of volts what should it be? Is 5V ...
2
votes
3answers
32 views

Shutdown, reboot not working

I often SSH into my Raspberry Pi, which is connected to my network via a wired connection. The last time I tried to reboot it, though, it failed: pi@raspberrypi ~ $ shutdown now -bash: ...
0
votes
0answers
9 views

Can I use auditd on a Raspberry Pi?

auditd is a kernel demon that can snoop on users using your server. Can it be used on a Raspberry Pi?
0
votes
0answers
6 views

Run Hamachi and Tightvnc on startup without logging in on raspberry pi

I have a raspberry pi with hamachi, haguichi and tightvnc installed. I have these 3 setup already, but I'd like to configure to run hamachi and tightvnc on startup withouth the user logging in on the ...
0
votes
0answers
17 views

Controlling ac home devices via gpio and relays is that hard?

Is it possible that I solder some relays into the elecrical switches in the house (in each one) and control each rooms devices with a raspberry pi (a rpi for each room)? I think I'll be needing a ...
0
votes
1answer
20 views

Colored screen when booting raspbian from noobs

i have a raspberry pi model b with noobs and raspbian installed on the sd card. ive used it for quite a while but today when i boot the pi it just shows me a colored screen and i cant do anything. i ...
0
votes
0answers
16 views

apt-get can't find packages

I've tried sudo apt-get install htop as per here. It doesn't return results: E: Unable to locate package python-software-properties. I've tried sudo apt-get update! Why doesn't this work?
0
votes
0answers
24 views

Official MongoDB Repo for ARM Processor

Is there an official MongoDB repo for the Raspberry Pi Following: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-debian/ Got this issue: W: Failed to fetch ...
0
votes
0answers
8 views

Automount NTFS HDDs in specific locations and share them in LAN

O.S: Raspbmc I need to share 4 HDDs over my LAN, but the fstab I wrote does't work as I aspected. Here's the part of fstab made for those HDDs: #External HHDs LABEL=Incompleted\040Seasons ...
0
votes
0answers
15 views

ecryptfs on raspbmc

Trying to get ecryptsfs on a RaspBMC install and having trouble. Reason: Ideally want single RPi to perform both as a media center and backing up another NAS (Synology via NFS) to encrypted external ...
1
vote
0answers
23 views

Error git clone git@github.com/felixge/node-mysql

I would like to seek help on npm install felixge/node-mysql. I been trying to install mysql into Raspberry PI so that I can do node.js with mySQL for my REST API but this problems been there for 2 ...
0
votes
0answers
31 views

Rs232 - Why do I read what I just wrote?

I have connected my RPi to my laptop via an RS232 to TTL adapter and a RS232 to USB cable and tried to write to it in C. On my laptop everything worked just fine. But when I move to the production ...
6
votes
2answers
1k views

What's the difference between the Model B and B+?

I have a Model B Raspberry Pi, but what are the differences between this and the new Model B+? Also apart from the physical differences, what could I do with a B+ that I can't do with my Model B?
1
vote
0answers
24 views

Reliable timed system with low power consumption over rasbpian [on hold]

I'm building a simple irrigation system which uses a Raspberry Pi to open and close a solenoid water valve. In general, the system should open the valve for set intervals of time every so often (E.g. ...
1
vote
2answers
42 views

Sound card for raspberry pi?

Can anyone recommend the best way of recording audio input? Are there any "sound cards" for raspberry pi's?
0
votes
0answers
22 views

Raspberry Pi as a internet radio server?

I'm looking for a way to stream audio mp3's and spotify to my internet radio from my Pi. I've have looked and can only find things that play it on the Pi. I also need a way of controlling what's being ...
0
votes
0answers
32 views

how to read from a GPIO pin when it changes?

I create an app that must detect when the lights(LEDs) changes their status (on->off or off->on) monitor this to a site.I create this app in client side with node.js and use rpi.GPIO package from ...
1
vote
1answer
38 views

Type of cable needed for new audio/video port on Model B+?

Just wondering what kind of cable I need to output audio and video using the new AV jack on the RPi model B+. I'm assuming it would look like a headphone cord but split to RCA or similar?
0
votes
1answer
16 views

ssl certificate on apache

I am following this tutorial to setup ssl on a raspbian. http://www.flatmtn.com/article/setting-ssl-certificates-apache The guide is for red hat. Where is the default location to copy the key and ...
1
vote
0answers
34 views

Shell and ssh locale issues on Raspbian

I'm trying to configure my Raspbian to support console output in my native language (Polish). After updating my locale preferences (I chose pl_PL.UTF-8 as my default locale), I ran a test - I typed ...
0
votes
1answer
23 views

wiringPi interrupt not working

this program is supposed to blink led when I press button, but the led start blinking with the start of program and never stop. button wired to gpio 17 and ground (0 in wiringPi map) led wired to ...
1
vote
0answers
31 views

Using the UV4L driver to stream video from the raspberry pi camera to android phone

Hello raspberry people! I'm posting a new question because I don't have enough rep on raspberrypi.stackexchange to post a comment on this post: Stream video from RPI Cam to Android Phone which sort ...
-1
votes
0answers
16 views

Can I use RPi for a Connected sensors Project? [on hold]

I am currently in my third year of my UG course in Computer Science. As a mini project, I am working on a Connected sensors for Home automation. The project was to use arduino to collect data from ...
5
votes
5answers
1k views

Why do people use powered usb hubs?

I have the RPi B+. It has four usb ports. At the moment I am powering an Arduino Mega, a small RFID reader and a keyboard. I plan to also power a wifi dongle and an arduino uno. Will this just work? ...
0
votes
0answers
16 views

Can I automate raspi-config partition resize?

I understand the process of resizing the disk partition to use the full disk size via raspi-config. Wanted to know a way to automate this process. Here is what I'm trying to do. I'm trying to do a ...
0
votes
1answer
21 views

Why is there a difference in USB HDD speed in my two Raspberry Pis?

Summary USB drives connected to the rev2 running Raspbmc read/write twice as quickly as the rev1 running Raspbian. Why is there a difference in speed? Testing I tested the same external USB hard ...
0
votes
2answers
36 views

Using a Generic Switching Power Supply

I have a generic 5V 10A switching power supply with screw terminals, that looks kind-of like this: Is it safe to use the output from here to drive the Pi by cutting a USB cable and connecting the ...
1
vote
1answer
66 views

wifi dongle not working

I have followed numerous tutorials to get my wifi dongle working on my raspberry pi, and when i use this command: iwconfig I get what almost all the tutorials show me, but i still can't get to ...
0
votes
1answer
30 views

encryption of database [on hold]

Is there some way to encrypt only the Mysql Database and the public_html folder of a lamp installation ? after reading a bit online it looks like encrypting the whole filesystem will slow down the ...
1
vote
2answers
31 views

PIC Microcontroller to Raspberry Pi Communication

I am designing a smart energy monitoring system as my FYP, I have used two pic18f452 microcontrollers to monitor the electric parameters and they are doing it successfully. now to make it more user ...

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