Verhalenmachine (Story Machine)

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Erwin: TODO: Test serial port stuff together with David (check udev serial port for other serial prot) TODO: Check minor todo's across files TODO: Stresstest complete verhalenmachine setup TODO: Complete README TODO: Create documentation

David: TODO: Headphone splitter + slider + VU meter aan USB audio card (output) TODO: VU meter en KAKU aan ander apparaat via seriële poort (input) TODO: Alles inbouwen in kist

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Verhalenmachine (Story Machine) is a RaspberryPi based audio player/ recorder/ Soundcloud uploader.

The player part is implemented on top of Volumio. It controls Volumio via MPD and presumes a custom enclosure outfitted with:

• 2 buttons: For play & stop and next.
• a volume slider: For volume control :) (controlled via Davids work)
• a VU meter: For display of output volume (controlled via Davids work)
• ...

The recorder part is implemented ...:

• 1 button: For record & stop.
• VU meter: For display of input volume (controlled via )
• ...

The Soundcloud uploader ...:

Setup

1. Install Volumio

https://volumio.org/get-started

2. Setup Volumio

Plugin network cable and electricity and startup the device. Connect to http://volumio.local/.

• Select Output Device http://volumio.local/plugin/audio_interface-alsa_controller

• Change Player Name http://volumio.local/plugin/system_controller-system

• Change Hotspot Name & Password http://volumio.local/plugin/system_controller-network

3. Checkout this script

Do this https://help.github.com/articles/generating-an-ssh-key/

cd /home/volumio/
git clone [email protected]:erwinelling/verhalenmachine.git

To update:

cd /home/volumio/verhalenmachine
git pull

4. Install (Python) dependencies

First install pip

sudo apt-get install python-pip

Then install MPD2

sudo pip install python-mpd2

Install Soundcloud

sudo pip install soundcloud

Install GPIO stuff

sudo apt-get install rpi.gpio

Install Serial port stuff (also available through pip)

sudo apt-get install python-serial

Install python development headers

sudo apt-get install python-dev

Install psutil

pip install psutil

Remot3.it

For remote SSH/ web access setup Remot3.it

http://forum.weaved.com/t/how-to-get-started-with-remot3-it-for-pi/1029

sudo apt-get install weavedconnectd

Add FIFO MPD output

cd /volumio/app/plugins/music_service/mpd
cp mpd.conf.tmpl mpd.conf.tmpl.bak
nano mpd.conf.tmpl

Add:

audio_output {
  type    "fifo"
  name    "my_fifo"
  path    "/tmp/mpd.fifo"
  format  "44100:16:2"
}

Change something in Volumio settings

/etc/init.d/mpd restart

Add services

As per http://www.raspberrypi-spy.co.uk/2015/10/how-to-autorun-a-python-script-on-boot-using-systemd/ and Give it the right permissions and enable our unit file as service

sudo chmod 644 /home/volumio/verhalenmachine/verhalenmachine.service
sudo chmod 644 /home/volumio/verhalenmachine/vumeter.service
sudo systemctl enable /home/volumio/verhalenmachine/verhalenmachine.service
sudo systemctl enable /home/volumio/verhalenmachine/vumeter.service

To control or check the service manually:

sudo systemctl start verhalenmachine
sudo systemctl stop verhalenmachine
sudo systemctl restart verhalenmachine
sudo systemctl status verhalenmachine

Add cronjobs

chmod a+x /home/volumio/verhalenmachine/cron_upload.py
chmod a+x /home/volumio/verhalenmachine/cron_recordcheck.py
crontab -e

Make sure to use crontab and not sudo, so the cronjob will run for user pi.

Add:

*/15 * * * * /usr/bin/python /home/volumio/verhalenmachine/cron_upload.py > /home/volumio/verhalenmachine/cron_upload.log
*/15 * * * * /usr/bin/python /home/volumio/verhalenmachine/cron_recordcheck.py > /home/volumio/verhalenmachine/cron_recordcheck.log

Add logs for cron:

sudo nano /etc/rsyslog.conf

and uncomment the line

# cron.*                          /var/log/cron.log

After that, you need to restart rsyslog via

$ sudo /etc/init.d/rsyslog restart

Run player as a service

As per http://www.raspberrypi-spy.co.uk/2015/10/how-to-autorun-a-python-script-on-boot-using-systemd/ and Give it the right permissions and enable our unit file as service

sudo chmod 644 /home/pi/stormy/machine.service
sudo systemctl enable /home/pi/stormy/machine.service

To control or check the service manually:

sudo systemctl start verhalenmachine
sudo systemctl stop verhalenmachine
sudo systemctl restart verhalenmachine
sudo systemctl status verhalenmachine

To check logs:

cat /var/log/mopidy/mopidy.log
``` -->


### TODO: Change default password?


### Handig
python -m serial.tools.miniterm /dev/ttyUSB0 -b 57600
python -m serial.tools.list_ports
192.168.211.1
ps ax | grep arecord
sudo kill <pid>