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Advanced Flow Nodes

Nodes for scripting, wireless connections, and dynamic data structures.

Lua Script

The Lua Script node executes custom Lua code.

Category: Advanced Type: LuaNode

Functionality

Runs a Lua script when the Execute input is triggered. It provides a sandboxed environment to interact with inputs and write to outputs.

Inputs

  • Execute (Boolean): Trigger signal (Rising edge).
  • I.xx: Dynamic data inputs available in the script.

Outputs

  • O.01 (Error): Reserved for error messages.
  • O.xx: Dynamic outputs writable from the script.

Scripting API

The script has access to global inputs and outputs tables.

Variables

  • inputs["I.01"]: Read input value.
  • outputs["O.02"] = true: Write output value.

Standard Libraries

  • math (abs, max, min, sqrt, etc.)
  • string (len, sub, find, match, etc.)
  • table (insert, remove, sort, etc.)

Helpers

  • time(): Current Unix timestamp.
  • date(format): Formatted date string (default: %Y-%m-%d %H:%M:%S).
  • json_encode(val): Returns JSON string.
  • json_decode(str): Returns Lua table.

Note: OS and File System access is blocked for security.

Teleport

The Teleport node transfers a signal wirelessly to another location on the canvas.

Category: Advanced Type: TeleportNode

Functionality

Works as a "portal". You select a source node and its output, and the Teleport node mirrors that value. This eliminates long, messy connection wires.

Configuration

  1. Add the node.
  2. A dialog will prompt you to select the Source Node and the specific Output to teleport.

JSON To Node

The JSON To Node node splits a JSON object into individual outputs.

Category: Advanced Type: JsonToNodeNode

Functionality

Takes a JSON object and creates a dedicated output terminal for each top-level key found in the sample JSON.

Inputs

  • Process (Boolean): Triggers the parsing.
  • Reset (Boolean): Clears all outputs.
  • JSON (String): The JSON payload.

Outputs

  • Processed (Boolean): High after successful parse.
  • Error (String): Error message if parsing fails.
  • [Dynamic Keys]: One output per key (e.g., data, status).

Configuration

  • Sample JSON: Paste a sample JSON structure in the node properties to generate the corresponding output ports.