Node-RED is a graphical, flow-based tool for connecting devices and automating workflows. With RevPi Nodes Runtime, specific nodes in the Node-RED editor can be used for the inputs and outputs of the RevPi.
Installing Packages for Node-RED #
▷ Open the Cockpit menu Revolution Pi.
▷ Select Install next to the RevPi App Node-RED to install packages revpi-nodered and noderedrevpinodes-server.
▷ Select Configure to switch to Node-RED menu.
Starting Node-RED #
The Cockpit menu Node-RED includes an integrated user management for authenticated access to the Node-RED editor.
▷ Open the Cockpit menu Node-RED.
The colored dot indicates the status of the RevPi Node-RED service:
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red: service inactive
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yellow: service initializing
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green: service active
▷ Add one or more Node-RED users with a secure password and a role (Read or All access rights).
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All Node-RED users have access to the same Node-RED work environment for this RevPi.
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Node-RED users are independent from the user accounts for your Revolution Pi system.
▷ Select Apply Settings.
▷ Enable the main toggle at the top right to initialize RevPi Node-RED service.
▷ Select Open Node-RED or use App URL to access Node-RED editor.
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Important
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You can use Node-RED without authentification, but in this case, anyone with network access to your RevPi can access the Node-RED editor. |
Expert Mode #
Expert Mode for experienced users enables direct editing of the Node-RED settings.js using the integrated code editor.
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Important
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Use Load Node-RED defaults to restore the default version of the settings.js file if needed.
Changes made in the code editor are preserved when leaving Expert Mode.
RevPi Nodes Runtime #
With the RevPi Nodes runtime environment, specific nodes in the Node-RED editor can be used for the inputs and outputs of the RevPi. This feature is enabled automatically because it is required for using RevPi nodes in Node-RED.