• Raspberry Pi - Image Processing

    Hi everyone.
    I am actually working on real time image / video processing..?
    What versions / models of Raspberry Pi are suitable for this..?
    Is that be possible on Raspberry Pi Model B element 14 ..?

    Kindly please help.

  • Can a SATA to USB converter from an old 5" HD used for SATA SSD ?

    Hi to all.


    I have got just today the 120 Gb SSD SATA disk that will be the definitive external storage support for the PI master of the Meditech project. At home I have some SATA to USB converter boards recovered from old external USB HDD boxes that hosted…

  • X300 for Rasperry PI - Does someone knows it ?

    Hi to all,


    discussing with a friend that has recently bought a PI (B 2) he told me that he has found on aliexpress (see the link below: Online Shop X300 Raspberry Pi Expansion Board Adds Bluetooth, Microphone input, stereo audio output, WiFi, RTC, IR recei…

  • PiFace CAD: What are the really used PINs on the PI

    I have investigated here and there without success until now. There is a lot of (good) documentation about the usage of the PiFace CAD display but I can't find what are the really used PINs on the Raspberry PI. In fact I see that this add-on board can…

  • Programming- Detecting Current Through Circuit



    I am a very new beginner to the Raspberry Pi, and I am wondering how I can programmatically detect if there is a current flowing through the circuit I built, connected to my Raspberry Pi 2 Model B. My circuit consists of a wire connected to the 3.3V…

  • Raspberry PI IR receiver needs some extra component ?

    Hi to all,


    I have a doubt about the use of a IR receiver connected to the Raspberry PI GPIO. Is it sufficient to connect the data pin to the GPIO port and power the sensor of some pull resistor is the worth to use?


    I am using the TSOP312 hat is 3.3V compatible…

  • Raspberry Pi 2 Model B Switches/Door Contact Switches



    I am new to the Raspberry Pi and I was wondering how I would connect door contact switches (or any kind of switch) to the pins on my Raspberry Pi. I have a Raspberry Pi 2, Model B. The purpose of this so that I could read if the door switches are together…

  • How can I set the SPDIF Out of a Wolfson card for 48KHz output

    Just registered and after a long research...


    The set:

    • Wolfson card on Raspberry Pi B
    • Volumio 1.55 with the patch of Ragnar
    • Yamaha RX-V595RDS
    • very cheap cinch auido cable, about 1.5m (for sure not a chance to be 75 Ohm)
    • some mp3, FLAC files


    The history:

    • Headset…
  • Qt 5.3 on raspian: Probelm witqh QtQuick / QML

    I have successfully installed Qt 5.3 on raspbian and it works fine. This will be definitely the environment I will develop the Meditech main interface. The problem is that I was not able to install in any way the QtQuick / QML environment. Does someone…

  • Problem running MENCODER or AVCONV from Cron

    I have a project where my Raspberry Pi starts taking pictures at 4:30AM and stops at 7:30AM everyday.  Then MENCODER or AVCONV should turn on to stitch them together into a movie.  Then a Dropbox Uploader uploads the movie to my dropbox account, and another…

  • Custom desktop on raspian

    This is half a question and half to start a discussion open for any kind of suggestion. If I have the need to start the Raspberry PI raspian with a customized desktop, including some parts and reoving others. Does someone has this kind of experience?…

  • PI Face Digital 2 with real PWM

    It's just an idea and before trying to make tests i'd like to ask your vision.


    The power of the PI Face Digital is that there are a certain number of elements, including a couple of good quality relays, ready to use. Then there is a missing component…

  • MPIDE for Chipkit PI on Raspberry PI running Raspian

    How do someone of you has setup the Raspberry-PI (no matter the model) to run the MPIDE under Raspian to program and manage the Chipkit PI ? I have read in various places about a raspian version with the preinstalled MPIDE but the few links I have found…

  • Raspberry Pi 2 Model B only shows 371 MB total RAM

    pi@raspberrypi ~ $ free -m

                 total       used       free     shared    buffers     cached

    Mem:           371        331         40          0         18        198

    -/+ buffers/cache:        114        257

    Swap:           99         15         84

    pi@raspberrypi ~ $



    and there should be 1GB. Totally puzzled. I formatted the SD card and wrote Raspbian to it ...NOT NOOBS.…

  • Using a Membrane Matrix Keypad to operate a lock with Raspberry Pi

    I am very basic with the language of python but I am trying out a project which is an electronic lock.


    But the problem is that I cant seem to work out how to make a program that asks for a four digit number password and when the correct digits are entered…

  • What is a good waterproof case for a Raspberry Pi and NoIR PiCam?

    I have built a birdhouse, with a Raspberry Pi and NoIR in it. But I am having issues with sealing it from the elements.

    I had an IR Led light ring that burned out part of circuit. Not sure if it was because of elements.

    Also looking to seal up the PiCam…

  • Charging NiMH Battery while in Use

    I have been trying to figure out if I could use my NiMH battery while it is in use for my current project.  If it is possible, how would I go about doing this?

    I am currently making a handheld retrogaming system using Raspberry Pi, a rear view camera monitor…

  • Realtek RTL8192EU ID 0BDA:818B RPI2

    Hey guys,


    So I've been spending a lot of time trying to get this to work and I'm now stuck. This is what I've done so far. I got this from http://sprabhu.blogspot.in/2012_07_01_archive.html#4273048004731121321 and had to modify some of it.

  • raspberry pi touch screen issue

    our touch screen will not boot the image on the sd card,  we've loaded raspiban onto it  but haven't been able to get anything to display on the actual touch screen. we've confirmed that the unit itself is operational and is able to read the sd card…

  • Wireless keyboard and mouse for raspberry pi

    I was planning to buy an HP wireless mouse and keyboard combo like this one. I want to attach it with my raspberry pi model b (2nd gen). I just wanted to confirm whether it would be compatible with the pi or not. Please reply

  • Noise from DMICs on Wolfson Sound Card

    Hi. I have been working on the audio recording on Raspberry Pi with Wolfson Sound Card. The problem is that I get high noise from DMIC such that sox cannot do silence trimming. I tried both low high-pass filters but no use. I am wondering if there is…

  • TCP/IP commnunications while GPIO interrupt



    I am developing an audio recording system using Raspberry Pi B+.


    To guarantee the sampling rate, an external GPIO interrupt with 16 kHz  was implemented.

    Then, for each interrupt, A/D conversion having 16-bit resolution was followed to get a sample.


  • CarPi

    Hello chaps,


    I have seen quite a few people implement their Pi's in to their cars in some way or another and I too want to do the same, however, apart from never having done anything like this before I'm also a noob when it comes to the electrical intricacies…

  • Wrong SD Card

    I just bought my first Raspberry Pi, the Media Center B+ edition. It came with an SD card, but it seems to be a full size SD card rather than a micro SD card. Has anyone else had this issue or am I missing something?

  • Boosting Line Input of the Wolfson Audio Card as the Cirrus Logic

    Hi, I already see the comparison chart between the Wolfson Audio Card and the new Cirrus Logic.

    I liked the new one allows to connect more GPIOs because the new RPi B+ have more pins available.

    Since i still have the earlier Model B and the original Wolfson…