I want the duration is 10 minutes as the configuration (red circle mark), but why the dashboard lasts many hours.

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LepAuthor

Senior

The chart will keep a lot of data points (history points), but in practice I only need the chart to keep the last ten minutes.

LepAuthor

Senior

I actually want the red pen to draw a square wave effect instead of the one circled on the left

ST Technical Moderator

Hi @�?� 丫饼

I'm afraid not being able to helps as you're using stander Chart and not ST one, may be you can ask node red community for help.

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