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    node-red-contrib-combine

    1.8.1 • Public • Published

    node-red-contrib-combine

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    Node-RED Nodes that output combinations of consecutive incoming messages

    These nodes aim to solve typical use cases where multi-input nodes (something that doesn't exist in Node-RED's concept) would be convenient. Incoming messages are stored internally by the nodes so combinations of multiple messages can be provided. Distinction of these messages is based on their topic property.

    Prerequisites

    node-red-contrib-combine requires Node.js version 7.0.0 or higher.

    Nodes

    If

    Forwards messages to the first output when previously received a truthy payload on "Condition Topic", otherwise messages will be routed to the second output.

    Logic

    Logic combination of incoming messages (And, Or, Xor, Nand, Nor, Xnor).

    Delta

    Simple subtraction of the values received on two configured topics.

    Bangbang

    Bang-bang (2 step / on-off) Controller. Emits true when the the payload value exceeds the upper bound, emits false when the payload goes below the lower bound. You could e.g. use this as a simple thermostat for a climate control, feed in the actual temperature and use the output to control a cooling device. For a heating device you would have to use the "invert" option, so you receive false when exceeding the upper bound and true when going below the lower bound.

    Statistic

    Calculate statistic samples like e.g. min, max, mean, median, ... from incoming payloads. Message distinction can be configured to msg.topic or msg._id. A timeout can be configured that removes messages from the internal cache. The statistics are re-composed when a message times out.

    List

    Compose a table of consecutive incoming topics and payloads. Output as array, csv, html table or html list. Columns and sort order can be configured. Message distinction can be configured to msg.topic or msg._id. A timeout can be configured that removes messages from the internal cache. The tables are re-composed when a message times out.

    Defer

    Defer a message with truthy payload for given time. If another message arrives with falsy payload the timer is cancelled. Keeps track on each topics state, only one message per topic will be sent until reset by a falsy payload.

    License

    MIT (c) Sebastian Raff

    Install

    npm i node-red-contrib-combine

    DownloadsWeekly Downloads

    103

    Version

    1.8.1

    License

    MIT

    Unpacked Size

    45.8 kB

    Total Files

    20

    Last publish

    Collaborators

    • hobbyquaker