All Questions

1
vote
1answer
20 views

Configure USB port as a network

I am trying to get my tablet serve as a screen with VNC connection. After few searches, they pointed me to include these lines to /etc/network/interfaces: iface usb0 inet static address 192.168.42.42 ...
0
votes
0answers
9 views

RetroPi on B+ - Slowness, music glitches when WiFi connected

I have a B+ with retropie 2.3 installed. I've sucessfuly connected a TP-Link TL-WN722N WiFi dongle. It seems that most roms run slower and have music glitches when dongle is connected. When I ...
0
votes
0answers
14 views

Pi as WiFi Repeater

There are many blog posts about using a Pi as an Access Point. But all the posts I read assumed the internet coming from Ethernet. As anyone successfully used the Pi as Wi-Fi Repeater? Other than ...
0
votes
1answer
24 views

Rasperry pi cluster

I'm planning on building or making a raspberry pi cluster. Nothing too fancy just with 3 or 4 nodes. What kind of switch should I use? Thanks!
0
votes
1answer
26 views

External shutdown (properly) button?

I have a R-Pi that I want to mount in an enclosure. The enclosure already has a couple external buttons on it. I'm trying to find some sort of circuit that I could by that I could wire the buttons to, ...
0
votes
0answers
22 views

How to get an IR sensor and motors to work together?

I've managed to connect a IR sensor to GPIO pin 23 and get LIRC to work with one of my remote controls. I've also set irexec up to launch a bash-script that drives motors (connected via open ...
0
votes
1answer
26 views

Send linux command between 2 pis on same network

I was wondering if it was possible to control say RPB (Raspberry Pi B) from RPA, using Linux commands. The two PIs are on the same network 192.168.1.static-ip-address. I log into both of them via ...
0
votes
0answers
12 views

RPI freezes after booting

Recently I bought a raspberry pi B+ and I am very new to it.I installed NOOBS rasbian OS on it every thing works fine. Now I want to build and install kernel image on it.So, for that I downloaded the ...
0
votes
0answers
4 views

Play MIDI from Raspi using external controller

I want to output MIDI fonts from the Raspberry Pi, hopefully able to control it with external sensors. I have timidity installed but get no sound playing the file python_games/tetrisc.mid . Is there ...
0
votes
0answers
21 views

Can Windows 7 run on Banana Pi? [on hold]

I'm curious if I buy a Banana Pi, can I use it as a home computer? Would it very slow or is it a good idea? Anyone tried that earlier?
0
votes
3answers
23 views

Pi Permanent Wiring

I want to finalize my Pi project and am concerned about the wire and connectors, gauge, durability, connection. Do you think that I can use the standard pi jumper connectors as a permanent solution ...
1
vote
1answer
14 views

ttyAMA0 disabled but still shows one boot message

I'm trying to use the UART for my own purposes. I'm using Raspbian I've edited cmdline.txt and inittab but I still get the one line message Uncompressing Linux... done, booting the kernel. How ...
0
votes
0answers
19 views

Pi dead: U3 IC gets extremely hot

I got two Pi's, and both of them have the same problem. To the first one, I connected a 3.3V power supply to pin 1, following which the board didn't boot and no LEDs lit. The board seems to be dead, ...
0
votes
2answers
29 views

may connect 26 pin touchscreen display to a 40 pin raspberry pi A+?

Recently, i've got as a present a raspberry pi a+ (40 GPIO pins) and touchscreen display for older version (26 GPIO pins) I tried to google, but wherever i search it gives me description of the new A+ ...
0
votes
0answers
13 views

Default resolution change between firmware versions

I just updated my Pi image so that I could use the Raspberry Pi B+ and there was a subtle change regarding the default resolution that the Pi uses when it is not plugged into any monitor at boot time ...
0
votes
0answers
11 views

DD Backup on mounted NAS when NAS shutdowns

Hope you guys can help me: I make periodic Backups of my SD Card using dd & gzip directly on my NAS. So my 32GB SD Card becomes a ~ 2,7GB compressed File. But last time my NAS crashed. So the ...
0
votes
0answers
9 views

Raspbian in qemu in the same terminal that started qemu

I am trying to run an emulation of raspbian in quemu in a remote machine without a graphical desktop. The following command works like a charm when I run it on my Ubuntu computer. qemu-system-arm ...
0
votes
1answer
32 views

Resistor calulation for two LED

I want to connect two IR LED to the 3.3v output on the PI in series. I need to reduce the 3.3v to 3.0v. What kind and measure should my resistor be? I swear this is not a word problem from ...
0
votes
0answers
5 views

Fibaro Wall Plug FGWPE_F-101 Node has failed

I have a Fibaro Wall Plug FGWPE_F-101 that I try to connect to my newly established HA system. I use The Domoticz software on a Raspberry Pi w/Razberry HW to manage this. The system discovers the ...
0
votes
2answers
23 views

Read load of battery via USB

I don't know if it is the right forum to ask the question but I just post it here. I have a power bank connected to my rpi b+ and I want to ask if it is in general possible to read the current load ...
0
votes
1answer
18 views

Connecting RFID reader over USB

I just purchased the RFIDRW-E-USB RFID reader from Priority 1 Design (see this page, datasheet available in PDF form.) I have tried to make it work on my computer (Ubuntu), before plugging it to my ...
1
vote
0answers
20 views

Can i setting sampling rate 2k in MCP3008 or python

Can i setting sampling rate 2k in MCP3008 or python. I think to do this a long time but i don't have no idea. please help, thanks.
1
vote
1answer
35 views

My Pi and external hard drive only connects occasionally (other linux machine can read it)

I want to attach a 2x2.5 external drive to my RPi (Raspbian, kernel release 3.12.32+), but I cannot get the RPi to be consistently accepted by the system. It sometimes works, but more often not. The ...
0
votes
0answers
8 views

RPi as Wireless AP but cannot connect

I want to use RPi as wireless AP, to control a RC Car. I install hostapd and udhcpd and config as i read in this site (http://elinux.org/RPI-Wireless-Hotspot). When I try to connect from my laptop ...
1
vote
1answer
39 views

Which cloud storage service will be better for my needs?

I'm using multiple Raspberry Pi devices. I use one for RPi software development (I'm programmer), one for multimedia (RaspBMC), and one for other purposes. The way I'm moving files to these devices ...
1
vote
0answers
29 views

Board-to-Board (B2B) connector for Raspberry Pi

I have a BLE module that connects to its original MCU board with a 30 pin CN2 type board-to-board (B2B) connector. I want to use this BLE module in Raspberry Pi. I've some BLE related code that runs ...
0
votes
0answers
12 views

raspberry pi compute module & i/o board setup

Is there a detailed instruction somewhere on how the compute module with i/o board be setup. I see the standard instructions mentioning the right voltage/jumpers, EN switch to be setup. Wondering if ...
0
votes
0answers
11 views

iptables: cannot open tcp port [on hold]

I'm running a PI B+: Linux pi 3.12.28+ #709 PREEMPT Mon Sep 8 15:28:00 BST 2014 armv6l GNU/Linux My PI is connect via lan (dhcp. ip: 192.168.78.29). I'm trying to open a tcp port (5556) using ...
1
vote
1answer
27 views

rPi B+ Arch Linux running Java application

My customer's java app (.jar) file runs on rPi B+ with arch linux installed. Now, I've also enabled hardware watchdog timer which purpose is to reboot rPi when java app hangs. Now, I've configured the ...
1
vote
0answers
24 views

I2C problem reading data - only sometimes

I'm using this device, that acts as an I2C slave device on the address 0x23, for communicating with an arduino from a RPi model B. This is an nrf24l01 attached to an AT48 that provides an I2C ...
0
votes
0answers
37 views

24 bit recording in raspberry pi

I'm trying to record audio with 24 bit with 32k sample rate in raspberry pi. When I play the recorded file I'm getting glitches. I changed bit clock ratio to 48 (i.e., number of bits* number of ...
2
votes
2answers
67 views

What's the best way to interface RPi with an Android app?

For my university senior project, I've been tasked with creating an Android app that will function as a HUD for the driver of a Formula Hybrid vehicle. The Raspberry Pi will gather all sorts of data ...
0
votes
0answers
14 views

PySerial not responding after 10 seconds of inactivity

I've got the JY-MCU Bluetooth module connected to the hardware serial port on my Raspberry Pi. It seems to be working except for one thing: when there is no communication for about 10 seconds or more, ...
0
votes
1answer
32 views

How to prevent script from repeating on startup?

I have a small bash script which I run at each logon. It is run by adding its path to the end of /etc/profile. My problem is that the script (at the moment it's just a line with echo "running script" ...
0
votes
1answer
46 views

No Video on 4.3" TFT using RCA composite cable on B+

I got a RPi scientific kit from CrazyPi.com. The kit came thru nicely, and upon following the instructions from various forums, I was able to do the following: Connect the RPi to a VGA display ...
1
vote
0answers
36 views

Java app won't start after updating

After updating my raspberry (Raspbian) and everything on it including java my java application won't start anymore, does anyone know what these crashlog mean and how to solve it or create a ...
0
votes
1answer
30 views

crontab versus /etc/cron.d

I tried crontab -e and the file that was edited is /tmp/crontab.vJdE7J/crontab. Is this correct? I read from http://www.devils-heaven.com/raspberry-pi-cron-jobs/ that I should be creating a schedule ...
2
votes
2answers
55 views

Is there a display that can be turned on/off via a Pi?

I have seen many small displays that work with the Pi, however I am wondering if any of them can be turned completely on/off via the Pi. If so, what should I look for? many are GPIO based (especially ...
0
votes
0answers
19 views

Mount error (112) : Host is down

I got this error message after an upgrade. Mount error (112) : Host is down Anybody know why ? My mount cmd worked before... Thanks for fast answer. My media center is down :(
2
votes
1answer
68 views

How to connect a 12V fan sensor wire to the Pi

I have a 3-wire 12v DC fan (Sanyo Denki 9S1212M4011). It's actually getting 15V because my "12V" wall wart isn't accurate. When the fan is not running my multimeter tells me there is 14V on the ...
1
vote
0answers
26 views

Stream and capture video when necessary

Recently I have bought an RaspBerry Pi Model B+ with a camera module and a Wi-Fi USB. It's all working pretty fine and no problems untill now. I'm using GStreamer to stream my video. But I also have ...
1
vote
1answer
30 views

Stackable real time clock?

I'm using Pibrella on my Pi (Model B+) and now I need RTC functionality. Are there stackable RTC modules that you know of? Any help is greatly appreciated. Regards, Kevin
1
vote
1answer
40 views

ADC to capture speech (8khz, 16bit)

I am looking to capture speech and save it as a wav (Wave PCM) in RPi. Ideally the speech should be captured in 8khz with 16bit resolution and saved as a raw file or wav file. I also have a need to ...
0
votes
1answer
19 views

Play music stream via node

Is there anyway for me to play a music stream (google play music, I already got the streamURL) in the raspberry pi via node? (and also, output it to audio port). thanks
0
votes
1answer
38 views

RPi compile under ubuntu

I am trying to compile Raspbian inside of Ubuntu by downloading them through the Git repository, but the tools.git never gets completely downloaded. I followed another article which insisted on ...
0
votes
0answers
30 views

How to scan for wifi devices from a Raspberry-Pi terminal [on hold]

I want scan and get the MAC-Id's of all wifi turned on devices from the terminal.I was able to do this with a bluetooth dongle but still confused on how to implement over wifi
0
votes
1answer
34 views

eth0 interface not starting on boot

I'm running lastest Raspbmc on Raspberry Pi B+. NetworkManager is removed and purged. I have USB wireless dongle which works perfectly and starts on boot. After reboot only lo and ra0 interfaces are ...
0
votes
0answers
26 views

Suitable camera for RPi carputer

I'm trying to build a carputer using a Raspberry Pi (B+ model) and need help deciding on a camera to help me run computer vision algorithms. A normal webcam works fine; however I would like to install ...
-1
votes
0answers
23 views

Camera application request [on hold]

I need to realize a simple image processing device that can be done with PI module with camera. I'm experienced on image processing software on PC, but none experience on PI environment. Is there ...
0
votes
0answers
32 views

CUPS referencing old Gutenprint version

I am trying to get the new Gutenprint 5.2.10 driver to work with CUPS 2.0.0 in my Rasberry Pi, using Raspbian8. I'm still kind of new to the Linux environment so please bear with me if I use the wrong ...

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