Custom user scripts i.e. audio is playing tigger to turn on amp

Audio Gear Talk RoPieee
1

Is there a preferred way to include custom scripts with Roieee? Perhaps something like AUR for ropieee where users can contribute extensions? Or another way all together within roon that I’ve missed?

For a bit of background, I wanted a way to turn on the amp connected to my ropieee when music is playing and turn it off when it’s not. I have various mqtt enabled switches and relays to turn the devices on and off this accomplished easy enough with the shell script below.

#!/bin/sh

SND_STATUS="/proc/asound/card1/pcm0p/sub0/status"
MQTT_TOPIC="shellies/shelly1-XXXX/relay/0/command"
MQTT_HOST="mqtt.local"

while true ; do
    value=`cat $SND_STATUS | egrep 'state|closed'`  
    if [[ "$value" =~ "RUNNING" ]] && [[ "$status" != "on" ]] ; then
        status=on
        [[ -t 1 ]] && echo $status 
        # Fire MQTT to turn amp on
        mosquitto_pub -h $MQTT_HOST -t $MQTT_TOPIC -m $status
    elif [[ "$value" =~ "closed" ]] && [[ "$status" != "off" ]]; then
        status=off
        [[ -t 1 ]] && echo $status
        # Fire MQTT to turn amp off
        mosquitto_pub -h $MQTT_HOST -t $MQTT_TOPIC -m $status
    fi
    sleep 1
done
1 Like
2

Not quite what you were looking for - but I do exactly this using Home Assistant

Of course you need to run a home assistant server to do this.

3

@GregD Thanks for that, I had a very simple hassio setup and just expanded to add this it works great.

The automation I’ve settled on in case others are wondering is:

- id: amp-off                                  
  alias: livingroom-roon-amp-off          
  description: turn off amp when roon is idle or paused
  trigger:                                     
  - platform: state                            
    entity_id: media_player.living_room        
    to: idle                                   
  - platform: state                            
    entity_id: media_player.living_room        
    to: paused                                 
  condition: []                                
  action:                                      
  - type: turn_off                     
    device_id: 02a29b23d46740bffa6fac5d87127a91
    entity_id: switch.livingroom_amp           
    domain: switch                             
  mode: single
4

Really glad that worked for you.

In case it helps - here is one of mine. The script pauses the player long enough for the tubes in the amp to warm up.

- alias: Hi Fi - power amp on for roon
  id: roon_01
  trigger:
  - platform: state
    entity_id: media_player.hi_fi
    to: playing
    for:
      seconds: 3
  condition:
    condition: state
    entity_id: switch.hi_fi_power_amp
    state: 'off'
  action:
  - service: script.turn_on
    entity_id: script.roon_hi_fi_on

And

roon_hi_fi_on:
  sequence:
  - data:
      entity_id: switch.preamp_228
    service: switch.turn_on
  - data:
      entity_id: switch.hi_fi_power_amp
    service: switch.turn_on
  - data:
      entity_id: media_player.hi_fi
    service: media_player.media_pause
  - delay: 00:00:40
  - data:
      entity_id: media_player.hi_fi
    service: media_player.media_play
  mode: single

I have some pending changes to the HA roon integration - which will add discovery - and a more sophisticated play_media command - which should allow you to play anything from a script.