How i can send data sensor mqtt to thingsboard

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1

hello , please how i can send data mqtt sensor to I dashboard thingsboard .

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I HAVE ERROR ""TypeError: Cannot read properties of undefined (reading '0')"

2

The first thing to do is to give you nodes names (including the debug nodes). Then you can see which node is generating the error. Next add a debug node to see what is going into that node and check it looks right.