SlabPi: Difference between revisions

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<div class="borderc5 backgroundc2" style="padding:0; margin:0 0 0.5em 0; border-style:solid; border-width:medium">
{| width="100%" align="center" style="text-align:left; "
| style="align:left;" | [[Image:Nuvola apps important.svg|25px|Outdated]]
| style="padding-left:5px;" | '''IMPORTANT:''' This page about Slabpi is outdated. Now a days, Slabpi is only running a snapcast client and cups for the label and recipe printers.
Please see [[spacesound]] instead
|}</div>
{{Inventory
{{Inventory
|Name=SlabPi
|Name=SlabPi
|Owner=Invict
|Owner=Space
|Status=Infra
|Status=Infra
|Hostname=slabpi.dhcp.nurd.space
|Hostname=slabpi.lan.nurd.space
|Location=Near the amp
|Location=Near the amp
|Picture=Slabpi2.jpg
|Picture=Slabpi2.jpg
|Tool=No
|Tool=No
}}
}}
*** REPLACED BY [[SLABNUC]] ***
==What==
==What==
SlabPi is the replacement for [[Slab]] on a [https://www.raspberrypi.org/products/raspberry-pi-3-model-b/ Raspberry Pi 3]. It has been moved, because of [[downscaling]].
SlabPi is the replacement for [[Slab]] on a [https://www.raspberrypi.org/products/raspberry-pi-4-model-b/ Raspberry Pi 4]. It has been moved, because of [[downscaling]]. And recently got upgraded from a rpi3 to a rpi4, it has a DAC+ Hat for better audio quality.
It will be challenged with as much infra a Raspberry Pi can handle.


It runs the MPD Server and espeak. It is running on [https://www.raspberrypi.org/downloads/raspbian/ Raspbian Stretch Lite].
*OS: [https://wiki.ubuntu.com/ARM/RaspberryPi Ubuntu 20.04 aarch64]
*Rpi: Raspberry pi 4 4GB
*SD: 32GB


A DAC+ Hat has been added for better audio quality.
== Setup ==


==DAC+==
=== Disabled/removed services ===
* disabled unattented-upgrades
* disabled wpa_supplicant
* disabled accounts-daemon
* disabled multipathd
* ubuntu motd spam
* removed snapd


PiFi HIFI DAC+ Digital Audio Card added for better audio quality.
=== Networking ===
It is hooked up with UTP. WLAN has been disabled.
===DAC+===
 
[https://www.itead.cc/hifi-dac-for-raspberry-pi.html PiFi HIFI DAC+] for better audio quality.


Installation:
Installation:
Line 30: Line 53:
  dtoverlay=hifiberry-dacplus
  dtoverlay=hifiberry-dacplus


==MPD==
===MPD===
 
Currently runs through LiquidSoap, so there is a +- 30 second delay. Ask [[User:R3boot|r3boot]] ;).
 
Fixed an issue where MPD hangs on song change. Fix it by uncommenting "device" option in the "audio_output" block (in my case ALSA) in mpd.conf.
This is a common error.
 
Connection through client.


Host: slabpi.dhcp.nurd.space
Host: slabpi.dhcp.nurd.space


Port: 6600
Port: 6600 (Technically 6005, see the mpd proxy service)


It is integrated with Home Assistant view on [[Jarvis]].
It is integrated with Home Assistant view on [[Jarvis]].


==espeak==
HTTPD outputs:
* port 6666 (8000:16:1) used by the VOIP system
* port 7777 (44100:16:2) used by Audiophiles


Espeak is now functional, there were ALSA problems.
===PulseAudio===
All pulseaudio changes need to be made in /etc/pulse/system.pa (default.pa isn't used)


==Motion webcam==
Pulseaudio is running as a system-wide daemon, it's default sample rate is set to 48Khz and priority has been set to real time.
Running motion for webcam, see [http://slabpi:8081/ this link]


Possible resolutions:
===Icecast===
There is an icecast server on port 8000. It's a direct feed from Pulseaudio so all sounds (Entrance themes, speak commands) will be heard on the stream.


* 160x120
Mount point(s):
* 320x240
* /nurds (Pulseaudio)
* 640x480
Can be checked with:
v4l2-ctl --list-formats-ext


It is included in the Home Assistant view of [[Jarvis]].
== MPD Control ==
For those not wanting to install a MPD client, there's a stand alone MPD web interface running called [https://github.com/jcorporation/myMPD Mympd] on port 80


==Labelprinter implementation==
==Labelprinter implementation==
Line 67: Line 84:
See [[Labelprinter]].
See [[Labelprinter]].


==Entrance Themes==
== Services ==
 
===Entrance Themes===
* Location: /home/pi/scripts/theme_songs.py
* Systemd-service: themesongs.service
* Programmer: [[User:Melan]]
 
A script which plays a part of a song for each individual member entering the space. See [[Entrance themes]].
 
=== MPD Icecast update ===
* Location: /home/pi/scripts/mpd_icecast_update.py
* Systemd-service: mpdicecastupdate.service
* Programmer: [[User:Melan]]
 
Updates the current now playing song from MPD to the icecast mount /nurds
 
=== Vu Meter ===
* Location: /opt/vu
* Systemd-service: vu.service
* Programmer: [[User:Zarya]]
 
https://gist.github.com/zarya/3d5447556296d6923bee232e4cc7fca1
 
=== LedFX ===
* Location: /home/pi/.ledfx.sh
* Systemd-service: ledfx.service
* http://slabpi:8888/dashboard
 
=== Pixelvloed FFT ===
* Location: /opt/pulse-pixelvloed-fft
* Systemd-service: fft.service
* Programmer: [[User:Zarya]]
 
=== Pixelvloed waterfall ===
* Location: /opt/pulse-pixelvloed-fft
* Systemd-service: waterfall.service
* Programmer: [[User:Zarya]]
 
=== hass-systemd-manager ===
* Location: /opt/hass-systemd-manager
* Systemd-service: manager.service
* Programmer: [[User:Zarya]]
* git: https://github.com/NURDspace/hass-systemd-manager
 
A python tool for starting and stopping systemd services via mqtt using homeassistant (ledfx, waterfall etc)
 
=== Soundboard ===
* Location: /home/pi/soundboard
* Systemd-service: soundboard.service
* Programmer: [[User:Melan]]
 
Allows samples to be triggered through MQTT, also handles the doorbell sound.
 
Als 't niet werkt, dan even inloggen op coherence en vanaf daar op vm 107 en daar proces 'python main.py' afschieten. Dat helpt soms na 1 of meer keer.
 
===  MPD Vol Proxy ===
* Location: /home/pi/mpdVolProxy
* Systemd-service: mpdvolproxy.service
* Programmer: [[User:Melan]]
 
A small script that intercepts all the clients connecting to MPD on port 6000 and intercepts all setvol commands and instead delegates it to Pulseaudio, meaning that any volume command will not adjust MPD's output, but the output to the amplifier instead.
 
=== MPDTube ===
* Location: /home/pi/mpdtube
* Systemd-service: mpdtube.service
* Programmer: [[User:Melan]]
* Git: https://github.com/NURDspace/MPDTube


It has a script running which plays a part of a song for each individual member entering the space. See [[Entrance themes]].
This project has its own wiki page, [[MPDTube]]


==WIP==
=== PulseControl ===
* Location: /home/pi/pulseControl
* Programmer: [[User:Melan]]


* espeak [[Nurdbot]] implementation
Part of the multi-room audio setup, it will ping if any of the defined hosts are up and once they are it will add their pulseaudio instance to the output.
* Moar cams
* Move logging to mounted location to preserve the micro SD card quality.
* Backups

Latest revision as of 16:53, 25 March 2024

Outdated IMPORTANT: This page about Slabpi is outdated. Now a days, Slabpi is only running a snapcast client and cups for the label and recipe printers.

Please see spacesound instead


SlabPi
Slabpi2.jpg
Owner Space
Status Infra
Hostname slabpi.lan.nurd.space
Location Near the amp
Tool No
Tool category

SlabPi

Slabpi2.jpg {{{InventoryOwner}}}Property "Tool Owner" (as page type) with input value "{{{InventoryOwner}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process. Near the amp


What

SlabPi is the replacement for Slab on a Raspberry Pi 4. It has been moved, because of downscaling. And recently got upgraded from a rpi3 to a rpi4, it has a DAC+ Hat for better audio quality.

Setup

Disabled/removed services

  • disabled unattented-upgrades
  • disabled wpa_supplicant
  • disabled accounts-daemon
  • disabled multipathd
  • ubuntu motd spam
  • removed snapd

Networking

It is hooked up with UTP. WLAN has been disabled.

DAC+

PiFi HIFI DAC+ for better audio quality.

Installation:

Edit /boot/config.txt

Disable the line 

#dtparam=audio=on

add 

dtoverlay=hifiberry-dacplus

MPD

Host: slabpi.dhcp.nurd.space

Port: 6600 (Technically 6005, see the mpd proxy service)

It is integrated with Home Assistant view on Jarvis.

HTTPD outputs:

  • port 6666 (8000:16:1) used by the VOIP system
  • port 7777 (44100:16:2) used by Audiophiles

PulseAudio

All pulseaudio changes need to be made in /etc/pulse/system.pa (default.pa isn't used)

Pulseaudio is running as a system-wide daemon, it's default sample rate is set to 48Khz and priority has been set to real time.

Icecast

There is an icecast server on port 8000. It's a direct feed from Pulseaudio so all sounds (Entrance themes, speak commands) will be heard on the stream.

Mount point(s):

  • /nurds (Pulseaudio)

MPD Control

For those not wanting to install a MPD client, there's a stand alone MPD web interface running called Mympd on port 80

Labelprinter implementation

Labelprinter is up and running. See Labelprinter.

Services

Entrance Themes

  • Location: /home/pi/scripts/theme_songs.py
  • Systemd-service: themesongs.service
  • Programmer: User:Melan

A script which plays a part of a song for each individual member entering the space. See Entrance themes.

MPD Icecast update

  • Location: /home/pi/scripts/mpd_icecast_update.py
  • Systemd-service: mpdicecastupdate.service
  • Programmer: User:Melan

Updates the current now playing song from MPD to the icecast mount /nurds

Vu Meter

  • Location: /opt/vu
  • Systemd-service: vu.service
  • Programmer: User:Zarya

https://gist.github.com/zarya/3d5447556296d6923bee232e4cc7fca1

LedFX

Pixelvloed FFT

  • Location: /opt/pulse-pixelvloed-fft
  • Systemd-service: fft.service
  • Programmer: User:Zarya

Pixelvloed waterfall

  • Location: /opt/pulse-pixelvloed-fft
  • Systemd-service: waterfall.service
  • Programmer: User:Zarya

hass-systemd-manager

A python tool for starting and stopping systemd services via mqtt using homeassistant (ledfx, waterfall etc)

Soundboard

  • Location: /home/pi/soundboard
  • Systemd-service: soundboard.service
  • Programmer: User:Melan

Allows samples to be triggered through MQTT, also handles the doorbell sound.

Als 't niet werkt, dan even inloggen op coherence en vanaf daar op vm 107 en daar proces 'python main.py' afschieten. Dat helpt soms na 1 of meer keer.

MPD Vol Proxy

  • Location: /home/pi/mpdVolProxy
  • Systemd-service: mpdvolproxy.service
  • Programmer: User:Melan

A small script that intercepts all the clients connecting to MPD on port 6000 and intercepts all setvol commands and instead delegates it to Pulseaudio, meaning that any volume command will not adjust MPD's output, but the output to the amplifier instead.

MPDTube

This project has its own wiki page, MPDTube

PulseControl

  • Location: /home/pi/pulseControl
  • Programmer: User:Melan

Part of the multi-room audio setup, it will ping if any of the defined hosts are up and once they are it will add their pulseaudio instance to the output.

Retrieved from "https://nurdspace.nl/index.php?title=SlabPi&oldid=14000"
Last modified
This page was last edited on 25 March 2024, at 16:53.