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netPI I/O
#1
Hello,

i have a question regarding the  NIOT-E-NPI3-51-EN-RE.
Is it possible to switch the I/O on/off via MQTT?
And are there other ways to switch the I/O on/off.


The logic: a component(sensor/raspberry) sends a MQTT command, a certain I/O port is switched off/on.

"i have the expansion module"



Thanks.
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#2
Which I/O do you mean exactly? netPI can be extended with the module called NIOT-E-NPIX-4DIDO https://www.hilscher.com/products/produc...Lang=false. Do you mean this IO?

A word to MQTT itself. MQTT cannot switch on or off any IO. MQTT is just a transport protocol to transport data from a server to a broker and from a broker to a server.

So here is a proposal how I would to it: I would use Node-RED as an instance to control the IO. In Node-RED there is a node to control the IOs of NIOT-E-NPIX-4DIDO and also an MQTT node. Both nodes can be combined together and you can control the IO over MQTT. The Node-RED you need to load on netPI is this one here: https://hub.docker.com/r/hilschernetpi/netpi-nodered
You never fail until you stop trying.“, Albert Einstein (1879 - 1955)

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