Announce: new node: @korve/node-red-convert-unit

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1

i hope someone can use this. This node converts from one unit to another unit:

example

I've needed such a functionality for my smart plugs to convert units of energy. The conversation is done by the excellent library convert-units package.

Any thoughts on this?

Cheers

Link to node: node-red-convert-unit (node) - Node-RED

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2

Looks to be quite thorough. I'm certain it will be useful to many folk. Thank you very much for your contribution. Keep em coming :slight_smile:

3

Hi @korve,
Thanks for contributing!!
Just one question: is there any particular reason why you decided to create a new node, instead of using my node-red-contrib-unit-converter (which is based on the same converts-units library as yours)?
Bart

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4

Hi Bart, tbh. i did briefly look at this plugin and only saw that it was updated 5 years ago and assumed its abandoned. :sweat_smile: Also there was no description on the nodered flow registry.

5

Which energy features in your node are you using in your 'smart plug' example that you mentioned above.
Wh to kWh??

6

I wanted to convert from Wm to kWh. Which doesn't work currently but i hope it will work soon :slight_smile:

7

You could put this in a function node;

let Wm = msg.payload  // example 60000
let kWh = (Wm * (1/60))/1000
msg.payload = kWh
return msg // returns 1
8

Ah yes that is very annoying. I always spend a lot of free time on the documentation for my readme pages, and for some reason some of them are completely empty on flows.nodered.org. And indeed if people don't have a look at the same page on Github or npm, then they assume there is no documentation at all...
Thanks for the clarification!

9

Or if you don't want to get into function nodes then a Range node configured as

image