IQAudIO Pi-DAC+ "plus"

Fin

gswg wroteRotary encoder - there are loads of examples on the web and I've placed code (source and pre-compiled) on github.com/iqaudio/tools

just connect the three legs of the encoder to gpio23, ground (normally the middle pin of the rotary encoder) and gpio24, and run the pre-compiled code (IQ_rot) with root privileges from the Pi's terminal and you should be good to go.

PM me if you need an encoder and are in the UK - I may have one lying around somewhere.

Gordon

Hi Gordon, I'm trying to get a rotary encoder running and am not having any luck running your compiled code.

1. Connected rotary encoder to IO23, IO24, 0V pins on the Pi-DAC, powered up the Pi.
2. Grabbed your files

git clone https://github.com/iqaudio/tools.git

3. Run IQ_rot

[root@runeaudio tools]# sudo IQ_rot&
[1] 854
[root@runeaudio tools]# -bash: sudo: command not found

[1]+  Exit 127                sudo IQ_rot

4. Tried running this way instead:

[root@runeaudio tools]# ./IQ_rot
./IQ_rot: error while loading shared libraries: libwiringPi.so: cannot open shared object file: No such file or directory

5. Grabbed wiringPi via git clone, try to build:

[root@runeaudio wiringPi]# ./build
wiringPi Build script
=====================


WiringPi Library
./build: line 53: sudo: command not found
./build: line 59: make: command not found

Make Failed...
Please check the messages and fix any problems. If you're still stuck,
then please email all the output and as many details as you can to
  projects@drogon.net

It seems to do with using sudo on RuneAudio, but I don't have the knowledge on what else to try or change. Can you point me in the right direction?

Stwert

I found that sudo wasn't installed on my pi with the 0.3-beta.
I can't remember the exact commands cause I'm not used to arch linux, but you have to update the repositories with a pacman command and then install sudo with another pacman command. Hopefully someone else can chime in.

Not sure why sudo doesn't come with the latest version, it seems that's a standard command?

Fin

Stwert, cheers heaps for the input.

Made more progress, used these commands to update repositories, install sudo and install wiringpi:

pacman -Syu
pacman -S sudo
pacman -S wiringpi

So now I am able to run the compiled code like so, but it unfortunately fails:

[root@runeaudio tools]# ./IQ_rot&
[1] 702
[root@runeaudio tools]# IQaudIO.com Pi-DAC Volume Control support Rotary Encoder) v1.0 July 10th 2014

IQ_rot: simple.c:282: snd_mixer_selem_get_playback_volume_range: Assertion `elem' failed.

[1]+  Aborted                 (core dumped) ./IQ_rot

gswg

Just to clarify - the Pi-DAC+ does not passthrough all signals - the Serial pin signals, for example, are not routed. If you need to use the serial port then please remove the Pi-DAC+ and use the standard Pi's GPIO signals.

Best regards,

Gordon

lagrange

Fin wrote IQ_rot: simple.c:282: snd_mixer_selem_get_playback_volume_range: Assertion `elem' failed.

Although the post is a bit dated, maybe this helps someone as I've struggled with this over the past few days. For me the problem was a wrong const char *selem_name definition. Check alsamixer for the correct one, in my case it was "Master" and not "Digital".

Cheers

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