Integration of microphone on Node Red dashboard

[Pablo Vicente García]

Hi all!!

I am developing an IoT project based on Bluemix and Node Red and I wanted to integrate a microphone input on my dashboard.

I think the correct way to do it is by using this node:

https://github.com/MattVador/node-red-contrib-mic

which has an input that can be a button in my dashboard.

This is how I configured the node:

The Node Red crashes as soon as I press the button.

Dows anyone have experience with this node so I can ask a few questions?

Thank you in advance.

[Glenn]

Have you considered using a MQTT service

Mic to MQTT and MQTT to Dashboard?

[Nick O'Leary]

Pablo,

Looking at that node, it expects to access a microphone connected to the computer running node-red. I doubt you have a lead long enough to plug into the bluemix server running your app.

I know this set of nodes: http://flows.nodered.org/node/node-red-contrib-browser-utils : includes one that accesses the microphone; the node has a button in the node-red editor (like the inject node does) which will use the browser's access to your microphone to capture sound when it is clicked.

If you want to do this from a node-red-dashboard page, you'll need to create a custom widget in a ui_template node that uses javascript to access the microphone within the browser. I don't have an example of that to hand - someone else in the community may do.

Nick

On 21 June 2017 at 13:07, Glenn <glo...@gmail.com> wrote:

Have you considered using a MQTT service

Mic to MQTT and MQTT to Dashboard?

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[Pablo Vicente García]

I haven't. I have recently started in this IoT world so I am not very familiar with the tools. I know what MQTT is but I have never implemented it.

Wouldn't you have a useful example in hand?

Thank you.

[Pablo Vicente García]

Nick,

That microphone node actually works. I can even send it to a Speech to Text node and get the transcription without a problem.

I will investigate the ui_template node and see if I can get something with it. Anyway, if someone has an example, it would be awesome.

Thank you.

El miércoles, 21 de junio de 2017, 14:30:10 (UTC+2), Nick O'Leary escribió:

Pablo,

Looking at that node, it expects to access a microphone connected to the computer running node-red. I doubt you have a lead long enough to plug into the bluemix server running your app.

I know this set of nodes: http://flows.nodered.org/node/node-red-contrib-browser-utils : includes one that accesses the microphone; the node has a button in the node-red editor (like the inject node does) which will use the browser's access to your microphone to capture sound when it is clicked.

If you want to do this from a node-red-dashboard page, you'll need to create a custom widget in a ui_template node that uses javascript to access the microphone within the browser. I don't have an example of that to hand - someone else in the community may do.

Nick

On 21 June 2017 at 13:07, Glenn <glo...@gmail.com> wrote:

Have you considered using a MQTT service

Mic to MQTT and MQTT to Dashboard?

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[Fatima Zahrah]

Hi Pablo,

I was wondering if you managed to integrate the microphone node with the dashboard properly. Did you manage to successfully use the ui_template node to do this or did you find another way?

[Dave C-J]

Hi

I have updated the play audio node to add status to it while it is playing audio - you can now use a status node to monitor the status and detect end of play and then trigger the next...

node-red-cont...@2.3.0

[Zenofmud]

oooh I have to play with this. My skeleton head might be vastly improved!!

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[Zenofmud]

Dave, 

Two issues:

1) node-red-contrib-play-audio is sending out a status when it starts and another one when it finishes.

2) if I add a second copy (N2) in the same tab and have it speak the payload then the original node (N1) only spits out a status at the start of the .wav - this won’t change till you restart NR.

 

if you have two copies of the node on two different tabs, they both seem to work - the TTL one sends the status when it is finished, but the .wav one still sends out two status’s - at start and end.

Paul

On Mar 13, 2018, at 5:43 PM, Dave C-J <dce...@gmail.com> wrote:

node-red-cont...@2.3.0

[Zenofmud]

should have mentioned I did an apt-get update/upgrade and an update of NR before testing.

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