Hi Andy, great post and it gave me a hint to be able to do the same with Home-Assistant which I find a bit easier to navigate and link than OpenHAB.
Installing home-assistant was straight forward, i had a pre-existing media server running Ubuntu Server 20.04. Created groups and users, create the directory for the application and configuration then install the docker container.
~$ sudo groupadd -g 1002 homeassistant
~$ sudo useradd -s /usr/bin/bash -m -d /opt/homeassistant homeassistant
~$ sudo su - homeassistant
bash-5.0# mkdir /opt/homeassistant/config
bash-5.0# exit
~$ sudo docker create \
--name="home-assistant" \
--net=host \
-e PUID=1002 \
-e PGID=1002 \
-e "TZ=Australia/Melbourne" \
-v /opt/homeassistant/config:/config \
homeassistant/home-assistant:stable
After installing Home Assistant and importing the devices it found for home-automation on my network, most importantly the Harmony Hub, i created/edited these files to build my configuration and automations:
/config/soundbar/curlhdmi1
/config/soundbar/curlhdmi1
/config/soundbar/curlarc
/config/shell_commands.yaml
/config/automations.yaml - this already existed but was empty.
/config/configuration.yaml - this already existed but added configuration to it.
/config/soundbar/* contains a file each for each of the Web URL calls require to change to that input that I want, which is (based on your submission):
bash-5.0# pwd
/config/soundbar
bash-5.0# cat curlhdmi1
http://SamsungN950:56001/UIC?cmd=<name>SetFunc</name><p%20type="str"%20name="function"%20val="hdmi1"/>
bash-5.0# cat curlhdmi2
http://SamsungN950:56001/UIC?cmd=<name>SetFunc</name><p%20type="str"%20name="function"%20val="hdmi2"/>
bash-5.0# cat curlarc
http://SamsungN950:56001/UIC?cmd=<name>SetFunc</name><p%20type="str"%20name="function"%20val="arc"/>
From there I can show the calls made using the CLI command 'curl' to make a http call to change the input from the /config/shell_commands.yaml file:
bash-5.0# pwd
/config
bash-5.0# cat shell_commands.yaml
set_soundbar_hdmi1: 'curl --connect-timeout 2 $(cat /config/soundbar/curlhdmi1)'
set_soundbar_hdmi2: 'curl --connect-timeout 2 $(cat /config/soundbar/curlhdmi2)'
set_soundbar_arc: 'curl --connect-timeout 2 $(cat /config/soundbar/curlarc)'
I then used an example from the home-assistant website about using triggers from harmony_hub to then run an action. This is what i've got in /config/automations.yaml (i don't have an ARC input configured yet, but I have the shell command built to use it in the future).
bash-5.0# pwd
/config
bash-5.0# cat automations.yaml
- alias: "Watch PayTV started from harmony hub"
trigger:
platform: state
entity_id: remote.harmony_hub
condition:
condition: template
value_template: '{{ trigger.to_state.attributes.current_activity == "Watch PayTV" }}'
action:
service: shell_command.set_soundbar_hdmi1
- alias: "Switch to SHIELD TV started from harmony hub"
trigger:
platform: state
entity_id: remote.harmony_hub
condition:
condition: template
value_template: '{{ trigger.to_state.attributes.current_activity == "SHIELD TV" }}'
action:
service: shell_command.set_soundbar_hdmi2
- alias: "PowerOff started from harmony hub"
trigger:
platform: state
entity_id: remote.harmony_hub
condition:
condition: template
value_template: '{{ trigger.to_state.attributes.current_activity == "PowerOff" }}'
action:
service: input_boolean.turn_off
entity_id: input_boolean.notify
The names for the 'variables' in the value_template trigger.to_state.attributes.current_activity are from the harmony_DEVICENAME.conf which comes down from the harmony hub discovery. This is in the /conf directory.
bash-5.0# pwd
/config
bash-5.0# head harmony_13095281.conf
{
"Activities": {
"-1": "PowerOff",
"34322322": "Watch PayTV",
"34322331": "SHIELD TV",
},
...
The final configuration is to update the /config/configuration.yaml to be sure it can inherit the shell_commands.yaml file:
bash-5.0# pwd
/config
bash-5.0# cat configuration.yaml
# Configure a default setup of Home Assistant (frontend, api, etc)
default_config:
# Text to speech
tts:
- platform: google_translate
group: !include groups.yaml
automation: !include automations.yaml
script: !include scripts.yaml
scene: !include scenes.yaml
shell_command: !include shell_commands.yaml
As a result when Logitech fires a change of activity which requires a change in input on the Samsung N950 soundbar, it fires the line:
action: service: shell_command.set_soundbar_hdmi2
which essentially runs the commandline equivalent (with http return data):
bash-5.0# curl --connect-timeout 2 'http://SamsungN950:56001/UIC?cmd=<name>SetFunc</name><p%20type="str"%20name="function"%20val="hdmi2"/>'
<?xml version="1.0" encoding="UTF-8"?><UIC><method>PowerStatus</method><version>1.0</version><speakerip>10.0.0.61</speakerip><user_identifier>public</user_identifier><response result="ok"><powerStatus>1</powerStatus></response></UIC>
This also turns on the soundbar if it is off which is a benefit.
Now if only the Harmony could embed Web Calls like this, i wouldn't have to do this and it would be IMMENSELY easier out of the box for direct input change rather than input cycling. Hopefully a FW update in the future for the N950 doesn't break this access.
With all this information, and an existing media center that is docker enabled, I could get this up and running in under 10 minutes now.
