Unanswered Questions

8
votes
0answers
1k views

Outputting audio to multiple sound devices simultaniously

I'd like my RasPi to send audio to my on board audio out port, and also to my Digital out card (an I2S Hifiberry Digi). This ought to be possible with ALSA. I have the drivers loaded and can send ...
6
votes
1answer
941 views

How can I cross-compile to the Raspberry Pi using Clang/LLVM?

I would like to cross-compile C-family languages (C, C++, Objective-C, and Objective-C++) to the Raspberry Pi using Clang and LLVM on a build computer of a different architecture. How may I do this?
5
votes
0answers
132 views

Playing sound through /dev/dsp?

I have a USB soundcard attached to my RPi. I used the command sudo modprobe snd_pcm_oss which created /dev/dsp and /dev/dsp1. /dsp corresponds to the internal soundcard whereas /dsp1 corresponds to ...
5
votes
3answers
4k views

RF24 communication with Arduino

I have been trying for ages to work this problem out and can't figure it out. I have two nrf24 transceivers, one connected to the raspberry pi and the other connected to an Arduino. My code for the ...
5
votes
3answers
393 views

powering pi with a 5v regulated power supply

I am considering the following 5v regulated ps module. I have a coin acceptor that connects to a board. I am going to cut the coin acceptors 12v cable and put the -ve and +ve behind the regulated ...
5
votes
1answer
8k views

Bluetooth device is not available?

I followed this tutorial to set up my Bluetooth dongle and get it running. I have the same Bluetooth dongle that is in the tutorial, yet I can not seem to get it to work. I get to step "C" and then ...
4
votes
0answers
60 views

How to add a package to official raspbian repositories?

How to add a package to official raspbian repositories ? Debian has a very extensive guide into the matter : ...
4
votes
3answers
172 views

Cannot open 12V Solenoid Valve

I am a beginner in DIY electronics, and I am attempting to control a 12V Solenoid valve from a Pi B2 connected to a 12V Battery and WiringPi Pin 1. I am using a 1kOhm Resistor between the gpio pin ...
4
votes
0answers
59 views

RaspberryPi A+ USB Data Lines shorted

This is kinda weird problem. I used Raspberry Pi A+ for my small projects. I did all the programming using a USB WiFi dongle via SSH. It all went happy and fine until one fine day the dongle stopped ...
4
votes
1answer
189 views

RPi.GPIO under Python 3

Raspberry Pi2 B, standard Raspbian. Using RPi.GPIO, V3 installed as: sudo apt-get install python-rpi.gpio python3-rpi.gpio On line import RPi.GPIO I get ImportError: ...
4
votes
1answer
121 views

Webcam color issue with mplayer

I try to display (multiple) webcams on a hdmi screen with my Raspberry Pi B. At first I used (since some month ago) OpenCV solution for 2x C170 Logitech Webcam -> works flawless (5-6fps). Now I ...
4
votes
0answers
336 views

Video and audio out of sync when playing 1080p 60fps on Raspberry Pi 2

I have a 1080p @ 60fps mp4 video saved in a external USB HDD. I've tried playing it on Raspbian in my Pi 2 (the new one, 1 GB RAM, 1 GHz) with Omxplayer, but the audio and video are out of sync. The ...
4
votes
1answer
264 views

Move OS to new USB stick in Berryboot

I am running Berryboot v2.0 with Raspbian and OpenELEC v4.0.6 installed. Initially I selected a usb stick (USB-A) as the destination drive. I want to install more OS's but USB-A is too small (4GB) so ...
3
votes
0answers
26 views

8 Bit / 256 Colors

I'm using a Raspbery Pi 2 as an X Window Server to replace some legacy devices. However the X window program only supports 256 colors and will throw an error if the color depth is set higher. I've ...
3
votes
2answers
166 views

/etc/network/interfaces missing on Raspbian

I am confused by Raspbian network configuration. I'd like to edit /etc/network/interfaces to setup the loopback interface to start automatically but I cannot find the configuration file. ...

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