Firstly, that flow cannot be imported as you did not format your post correctly. In order to make code readable and usable it is necessary to surround your code with three backticks (also known as a left quote or backquote ```)
```
code goes here
```
You can edit and correct your post by clicking the pencil 
icon.
See this post for more details - How to share code or flow json
That statement is a little muddled. Please clarify. Do you mean
- "How do I extract bits from a number"?
Or do you mean - "how do I pack bits into a number?
Either way, the buffer-parser can help here.
demo flow
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