Hello everyone, i try to play music with the raspberry and also play random sound effects at the same time. i followed this tutorial: http://pacmans-revenge.blogspot.com/2018/08/raspberry-pi-bluetooth-speakers.html but it doesnt work like i want it to. while i am connected with my mobile to the r…

okay i made a little work around ... my new strategy is to just build up an ssh connection inside nodered and send the play commands via that method. now the only problem i got is that the ssh connection does allways close after one command. anyone knows a strategy ? iam currently useing sshpass.

You can send commands one at a time using ssh using ssh user@server "some_command to execute remotely with params" That way you don't need to build and maintain the connection.

Hi, thanks for your help. Now it open the ssh connection without authentification via passwort and uses instead a key file. My problem is, that everytime it open the connection, there is about 500ms delay. if i want to play an audiosample just in time, this is a problem. so i need to have an conne…

You could use mqtts to send the commands instead.

i can play sound just via and established ssh connection, mqtt wont help me in that case i think.

It means you don't need an ssh tunnel. Much simpler.

how can i use my "play" function via mqtt ?

Pick it up in node-red at the other end and run the command in an exec node.

but that is just another way to pump a command to the exec node. the problem still is, that the command "play /dedo.wav" pumped in the exec node doesnt work. i have to use a terminal or a ssh connection to be able to play a soundfile. i still got the problem which i mentioned in the picture i post…

Oh, sorry, I thought you were using a tunnel to get to another machine. Can you give us a translation of the error message you showed earlier please.

Exec Node and Terminal Problem ( Alsa)

General

zenofmud 19 April 2020 19:23 12

If you are playing the music on the Pi and have the speakers attached to it, have you tried using node-red-contrib-playsound? Not sure if it will work with bluetooth speakers, but it worked fine in my Music Player project

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Exec Node and Terminal Problem ( Alsa)

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