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27 lines
841 B
Markdown
27 lines
841 B
Markdown
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node-red-node-pidcontrol
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========================
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A <a href="http://nodered.org" target="_new">Node-RED</a> node that provides a simple PID controller.
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Install
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-------
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Run the following command in the root directory of your Node-RED install - usually ~/.node-red
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npm install node-red-node-pidcontrol
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Usage
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-----
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PID controller node.
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This node ONLY expects a numeric **msg.payload** containing the current reading.
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It will output the correction that needs to be applied in order to move to the preset **set point** value.
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The damping factors are typically in the range 0 - 1.
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See <a href="https://en.wikipedia.org/wiki/PID_controller" target="_new">Wikipedia</a> for more details on PID controllers.
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The **set point** may be overridden by **msg.setpoint**. If you do so the edit box value can be used as the initial value.
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