Custom Widget - Tachometer

[George_Santiago]

This question is related to another post below:

HTML widget on Dashboard. Using {{value}} in the JavaScript block

I try to write HTML widget with JavaScript code in the Dashboard. The data from the thing can be used in the HTML by inserting the next code {{value}} into some HTML tag body. But, I cannot use it in the JavaScript block . Pure HTML widget: For example use in the HTML widget: <h1>Millis data</h1> <p>Millis value is </p><b>{{value}}</b> Widget with JavaScript block (don’t work as needed): I tried to use the same data for plotting (Plotly example). I can use in the HTML tag id=dat…