Tutorial de Node-RED: Cómo reproducir audio en su PLC / Panel PC basado en Raspberry Pi

Así, utilizaremos el nodo de audio que viene con los nodos de node-red-dashboard.

Para instalar los nodos del cuadro de mando, haz lo siguiente:

1.  Asegúrate de tener una conexión a internet con el controlador industrial Raspberry Pi PLC.

2. Dirígete al menú de Node-RED > Gestionar Paleta > Instalar > Escribe: node-red-dashboard > Haz clic en Instalar.

3. Una vez descargados los nodos, arrastra y suelta el nodo de audio en tu flujo.

4. Haz doble clic para configurarlo: establece un grupo y selecciona el idioma TTS Voice.

5. Añade un nodo de conmutación de tablero y conéctalo al nodo de salida de audio.

6. Haz doble clic en el nodo de conmutación y configura un grupo, establece una etiqueta y establece un mensaje para cuando se haga clic para enviar la carga útil de encendido y apagado.

Por último, ve a tu tablero de mandos, cambia el estado del nodo switch, speakers on y ¡escucha!

Si quieres comparar tu flujo con el nuestro, ve al menú de Node-RED > Haz clic en Importar > Y pega este flows.json:

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