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@cymplecy/node-red-counter

v1.0.0

Published

A Node-RED node to create a counter with messages.

Downloads

1

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Links

Git

Maintainers

cymplecycymplecy

Keywords

node-redcountercount

Readme

@cymplecy/node-red-counter

Forked from node-red-contrib-counter to fix small bug and alter behaviour of a msg.reset command Original node by Daniel Kern https://github.com/dkern/node-red-counter

A Node-RED node to create a counter with messages.

Table of Contents

Install

Run the following command in your Node-RED user directory - typically ~/.node-red:

npm install @cymplecy/node-red-counter

Usage

By default the counter will be incremented for every inbound message and append the current count to msg.count.

Configuration

  • Initial Count: The initial count can be set in the configuration. By default it will be zero at start.
  • Default Step: Default amount that will be incremented or decremented on every incoming message.
  • Lower Limit: Optional limitation of the lower count limit. Will add countLowerLimitReached to msg if reached.
  • Upper Limit: Optional limitation of the upper count limit. Will add countUpperLimitReached to msg if reached.
  • Mode: Determine if count value should be incremented or decremented on every incoming message.
  • Outputs: Selects the output format of the counter. For more info read below.

Output

There are two output options for the counter value:

  • single: The actual count will be appended to msg.count of the original msg.
  • split: The node will become two outputs, first will return the count as msg.payload and possible limitation info, the second returns the untouched original msg.

Control

It's possible to control the counter with incoming msg properties:

  • msg.increment: counter will be incremented by the given value.
  • msg.decrement: counter will be decremented by the given value.
  • msg.reset: resets the counter to it's initial count, or to the given value, when it's a number. If no msg.payload in the same message, then node will not output anything

Bugs / Feature request

Please report bugs and feel free to ask for new features directly on GitHub or contact me on the forum.

License

This project is licensed under Apache 2.0 license.