Big shout out to the amazing guys on Node-Red forum who did and continue working on these gauges. See the entire discussion here: https://discourse.nodered.org/t/first-september-give-away-lets-create-one-gauge/50507
In this video I compiled some of my favourite designs and explaining how to use and customize them.
My example flow: https://drive.google.com/file/d/1kv0zYx074NU1-lW9_P4HGgmFiagfPYib/view?usp=sharing
Chapters:
0:00 Intro
2:36 How these gauges work?
5:52 Gauge size
7:49 Gauge labels
11:20 Ticks, value labels
13:46 Different tick colors
16:08 Color sectors
19:19 Fewer ticks on the faceplate
21:07 Backlight
22:45 Two needles
27:52 Max value higher than 100
29:52 Starting from non-zero value
31:26 Smaller tick area
34:38 Outro