Doubt with data from Mysql A NodeRed and graph it

[jbudd]

Although you have debug nodes in your flow you have not shown us what they output, so we are guessing.

However, maybe this post will be helpful:

Convert object from sqlite to use in line graph

Assuming that you are using node-red-dashboard v1... You need to send your data to the chart node in a specific format: An array containing a single object with properties "series", "data" and "labels". "series" is an array of the names of lines on the chart. For a single line, just one element in the array. "data" is an array of arrays, one array per line on the chart. Each array element is an object with x and y properties to define the points on the line. "labels" - Actually I'm not sure …