Monday, March 4, 2013

Compiling Multimon-NG for the Raspberry Pi

EDITED 26-Nov-2013: Minor bugfixes on commands, added more explanation.

Got my mouth all ready to do some POCSAG decoding on the Pi, running Raspbian Wheezy.

Enter Multimon-NG. I tried compiling it as per this page. Had no problems. In summary:

sudo su -
apt-get install libpulse-dev libx11-dev qt4-qmake
apt-get install git cmake build-essential
git clone https://github.com/EliasOenal/multimonNG.git
cd multimonNG/
mkdir build
cd build
qmake ../multimon-ng.pro
make
make install

A previous version of this post listed lots of problems, mainly due to the lack of qmake. I later found that it's included in the qt4-qmake package. I used the latest (2013-09-25) version of Raspbian, which may have also helped.

5 comments:

  1. So far your post here is the most promising. I compiled without error. I didn't even get his fall over problem.. However:

    root@raspberrypi:~/multimonNG# multimon -a DTMF
    multimonNG (C) 1996/1997 by Tom Sailer HB9JNX/AE4WA
    (C) 2012 by Elias Oenal
    available demodulators: POCSAG512 POCSAG1200 POCSAG2400 EAS UFSK1200 CLIPFSK AFSK1200 AFSK2400 AFSK2400_2 AFSK2400_3 HAPN4800 FSK9600 DTMF ZVEI SCOPE
    Enabled demodulators: DTMF
    unixinput.c: pa_simple_new() failed: Connection refused
    root@raspberrypi:~/multimonNG#

    Any ideas?

    ReplyDelete
  2. Hi Steve,
    I won't be able to get back to the Pi until at least the weekend, so I'm only guessing here:
    I think you need to specify the input source when running multimon. There should be a /dev/stdin on the end (as in my post re putting rtl_fm and Multimon together). You won't get any output, but the error message should disappear. Ctrl-C stops the program.

    ReplyDelete
  3. Greetings. Getting hung up on MAKE:

    root@raspberrypi:/home/pi/multimonNG# make -f Makefile.legacy
    make: *** No rule to make target `bin-armv6l/demod_zvei.o', needed by `bin-armv6l/multimon'. Stop.
    root@raspberrypi:/home/pi/multimonNG#

    ReplyDelete
  4. Maybe scratch that.... used qmake instead. seems to have compiled ok.. not sure if it is working or now yet.

    ReplyDelete
  5. hello.
    I have a big problem about multimon-ng. I want detect dtmf from mic(walkie talkie). I test detect dtmf by multimon-ng on ubuntu(notebook) ,it work but i test on raspberry pi,it not work.

    I use arecord for record sound to wav file ,next decoder from wav,it work. Can you help me,please.
    **** sorry for english.
    thank you.

    ReplyDelete