Flowchart for Temperature, Humidity and Luminosity


I'm new in this software, and i'm doing a app to show the values of temperature, humidity and luminosity. I get the values from a dht11 sensor and these values are published in MQTT Explorer. I have the extension to get the values, but i'm having trouble in the graph building. In attachment i have my layout, blocks, and error message.

Thanks for your help and a happy new year!


in your designer you are using native chart component, but in your blocks you are using a chartMaker extension.?

yes, but how i use chartmaker in designer? It shows as a non visible component...

Chartmaker uses a webviewer component to display its chart