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node-red-nodes/time/timeswitch/README.md

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node-red-node-timeswitch
========================
A <a href="http://nodered.org" target="_new">Node-RED</a> node to provide a
simple timeswitch node to schedule daily on/off events.
Install
-------
Run the following command in the root directory of your Node-RED install.
Usually this is `~/.node-red`
npm install node-red-node-timeswitch
Usage
-----
Sets `msg.payload` to *1* during on times, and *0* during off times.
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Also uses the suncalc module to allow use of dawn and dusk.
Dawn and dusk times can be offset both positively (+ve) for minutes after dawn
or dusk, and negatively (-ve) for minutes before dawn or dusk..
The output emits a `msg.payload` of *1* or *0* every minute depending on
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whether the current time is during the selected on time or off time.
If you just need the transitions from 0->1 or 1->0 then follow this node with an RBE node.
You may also optionally specify a `msg.topic` if required.
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**Note**: For a more complex version with more built-in options see Pete Scargill's
[node-red-contrib-bigtimer](http://flows.nodered.org/node/node-red-contrib-bigtimer) node.