SmartThings Community

Soundbar HW-N850 Integration

(Christian Riedl) #1

I am trying to control the Soundbar via Smarthings API from my own Smarthome system with my own API implementation…

Using iPhones Smarthings App everythings works fine but it uses probably a Device Plugin.

Controlling a Series Q9 TV also works fine with my API implementation.

For the soundbar only the switch and refresh command works correct and I can get all capabilities as expected.

But the setVolume and setInputSource does not work. They deliver http Status OK but have no effect.



JSON payload for setVolume :


JSON payload for setInputSource :


I hope somebody can help

(Stefan) #2

Hi! Did you ever figure this out? I have an HW-N950 and the setVolume works just fine, however the setInputSource does not :frowning:

Here are my commands:

curl -H “Authorization: Bearer: token” -d ‘{“commands”:[{“component”:“main”,“capability”:“audioVolume”,“command”:“setVolume”,“arguments”:[10]}]}’

curl -H “Authorization: Bearer: token” -d ‘{“commands”:[{“component”:“main”,“capability”:“mediaInputSource”,“command”:“setInputSource”,“arguments”:[“HDMI2”]}]}’

(replace secret and token with device id and token)

Any help is greatly appreciated!

(Marcus) #3

Same for me… setVolume, Switch etc work fine. setInputSource does not.
However, it works perfectly fine on a different soundbar (MS650)…

However the N950 always responds back in the log as having changed the input… while it actually doesnt…

(Stefan) #4

Great… Can we report a bug so this can be fixed in the next firmware?

Also, what log are you referring to?

(Marcus) #5

Dont know where to report it…
I mean the live logging tool on the Smartthings Website.

Actually… now i get an error… maybe we can use this to fix it…

This is what i get now:

 10:33:39 AM: error groovy.lang.MissingPropertyException: No such property: statusCode for class: physicalgraph.scheduling.AsyncResponse @line 241 (postOcfCommandHandler)
 10:33:29 AM: debug postOcfCommand(/oic/route/DEVICEID/sec/networkaudio/mode, [mode:HDMI])
 10:33:29 AM: debug Input Source is being set to HDMI

So the command gets recognized and interpreted by Smartthings, but then there is a problem with sending it to the Soundbar via OCF. However, also the AudioVolume does not work anymore today… only the switch (On/off)

(Stefan) #6

Volume control still works fine for me on my HW-N950. It is just the input that doesn’t work.

Perhaps we can try to report this as a bug here: At the bottom there is also Email support available.

(Stefan) #7

I have now access to an Q9F 2018 QLED Smart TV from Samsung. So I tried the same command for changing inputsource on this TV. This is the command used:

curl -H “Authorization: Bearer: xxxxx” -d “{“commands”:[{“component”:“main”,“capability”:“mediaInputSource”,“command”:“setInputSource”,“arguments”:[“HDMI”]}]}”

And here is the result:

{“requestId”:“xxxxx”,“error”:{“code”:“ConstraintViolationError”,“target”:null,“message”:“The request is malformed.”,“details”:[{“code”:“NotValidValue”,“target”:"[0].capability",“message”:“mediaInputSource is not a valid value.”,“details”:}]}}

It looks line mediaInputSource is simply not an accepted capability???

(Christian Riedl) #8

When I query the Q9F device capabilities I get “switch”, “refresh”, “ocf” ?, “audioVolume”, “execute”, “tvChannel” but no "mediaInputSource". Clear that the command whil fail. The HW.N850 soundbars capabilities include “mediaInputSource”.

When I send this command to the soundbar I get “good” answer. But nothing happens.


I already reported the bug in november 2018, they informed me that they forwarded it to engineering in Korea.