MQTT Publish to TAGO.io

Hi,

I'm trying to publish to Tago using RaspberryPi MQTT Publish block, but I haven't had any success, yet. I'm getting status -1 from the block.

I set the mqtt details in Target hardware resources as:

mqtt.tago.io

Username: Any value

Password: my device token

Client ID: Any value

MQTT Publish Block:

topic: tago/data/post

TAGO expects a json string vector. I tried to convert a string vector to ASCII, but it didn't work. Any idea on how to solve it?

Thanks

Answer 1

[Rodrigo Botelho]

I have figured out one way of solving it.

Since the MQTT Publish block does not support Strings, it's possible to send raw data to Tago.io platform and use the Payload Parser to format the data being received.

In Simulink, one should add the String to ASCII block before the Publish.

On Tago.io parser, one should write a small script in JS getting the data from a raw payload and comnverting to desired data type. Then it will be trivial to find the new variable for plotting.