Input & Output Nodes

Nodes for manual data entry, constant values, and visual displays.

Input Nodes

Input nodes provide constant values or manual controls that you configure in the properties panel.

Input Bool

Outputs a configurable boolean value.

Category: Input

Outputs

Name	Type	Description
Value	Boolean	The configured true/false value

Properties

Value: Toggle between true and false

Use Cases

Permanent enable/disable signals
Test conditions without wiring
Default values for composites

Input Int

Outputs a configurable integer value.

Category: Input

Outputs

Name	Type	Description
Value	Integer	The configured number

Properties

Value: Enter any whole number

Use Cases

Threshold values for comparisons
Counter presets
Index values for multiplexers
Configuration constants

Input Float

Outputs a configurable floating-point value.

Category: Input

Outputs

Name	Type	Description
Value	Float	The configured decimal number

Properties

Value: Enter any decimal number (e.g., 3.14, -0.5, 100.0)

Use Cases

Temperature thresholds
Calibration values
Mathematical constants
Percentage values

Input String

Outputs a configurable text string.

Category: Input, String

Outputs

Name	Type	Description
Value	String	The configured text

Properties

Value: Enter any text

Use Cases

Static messages for notifications
Device identifiers
URL parts for HTTP requests
File paths for SD card operations
JSON templates

Enable Input

A special input that always outputs true. Simpler than Input Bool when you just need a permanent enable signal.

Category: Input

Outputs

Name	Type	Description
True	Boolean	Always true

Button

A momentary switch that outputs true while pressed.

Category: Action, Input

Outputs

Name	Type	Description
Active	Boolean	True while pressed, false when released

Use Cases

Manual trigger for testing
Operator controls
Reset buttons
Acknowledge alarms

Display Nodes

Seven Segment Display

Displays a numeric value in classic seven-segment style, like a digital clock or industrial display.

Category: Utility

Inputs

Name	Type	Description
Value	String	Number to display (as text)

Properties

Digits: Number of display digits
Color: Segment color
Background: Display background color

Display Format

The node shows digits 0-9 in the familiar seven-segment pattern:

 ▄▄▄     ▄▄▄   ▄▄▄         ▄▄▄   ▄▄▄   ▄▄▄   ▄▄▄   ▄▄▄
█   █      █      █  █   █  █      █      █      █  █   █  █   █
          ▄▄▄   ▄▄▄   ▄▄▄   ▄▄▄   ▄▄▄         ▄▄▄   ▄▄▄
█   █      █  █         █      █  █   █      █  █   █      █
 ▄▄▄     ▄▄▄   ▄▄▄         ▄▄▄   ▄▄▄         ▄▄▄   ▄▄▄
  0       1     2     3     4     5     6     7     8     9

Use Cases

Counter displays
Sensor readings
Status codes
Timer displays

Speedometer

Displays a numeric value as a gauge dial.

Category: Output, Utility

Inputs

Name	Type	Description
Value	Float	Number to display on gauge

Properties

Property	Description
Min	Minimum scale value
Max	Maximum scale value
Segments	Number of colored sections
Needle Color	Color of the pointer
Start Color	Color at minimum end
End Color	Color at maximum end
Value Format	Decimal places (`.0f`, `.1f`, `.2f`)

Use Cases

Speed displays
Temperature gauges
Load indicators
Percentage meters

Oscilloscope

Plots up to five signals on a scrolling chart over time.

Category: Output, Utility

Inputs

Name	Type	Description
Input 1-5	Bool/Int/Float	Signals to plot

Properties

Property	Description
Colors	Line color for each input
Min/Max	Y-axis range for each input
Data Type	Type of each input (bool/int/float)

Use Cases

Signal debugging
Timing analysis
Waveform monitoring
Comparing multiple values

Text

Displays static text on the canvas.

Category: Utility

Properties

Property	Description
Text	The message to display
Size	Font size
Color	Text color

Use Cases

Section labels
Instructions
Node group titles
Documentation notes

Debug Output Nodes

Bool Debug Output

Shows a boolean value with customizable appearance.

Category: Output, Debug

Inputs

Name	Type	Description
Value	Boolean	State to display

Properties

Property	Description
True Icon	Icon when true
False Icon	Icon when false
True Color	Color when true
False Color	Color when false
True Label	Text when true (e.g., "ON")
False Label	Text when false (e.g., "OFF")

String Debug Output

Shows the current string value.

Category: Output, Debug

Inputs

Name	Type	Description
Value	String	Text to display

Value Debug Output

Shows multiple input types in a table format.

Category: Output, Debug

Inputs

Name	Type	Description
Value - Bool	Boolean	Boolean value
Value - Int	Integer	Integer value
Value - Float	Float	Decimal value
Value - String	String	Text value

JSON Viewer

Displays formatted JSON with syntax highlighting.

Category: Output, Debug, JSON

Inputs

Name	Type	Description
JSON	String	JSON text to format

Properties

Property	Description
Indent	Spaces for indentation
Height	Display height
Theme	Color scheme

Logging

Shows runtime log messages from the Flow engine.

Category: Output, Debug

Automatically receives log messages including errors, warnings, and info. Each entry shows:

Log level (error/warning/info)
Timestamp
Node name/ID
Message content

Tip

Keep a Logging node in your flow to see backend messages while debugging.

HTTP Request (Detailed)

The HTTP Request node makes web requests and handles responses.

Category: Action

Inputs

Name	Type	Description
Execute	Boolean	Rising edge sends request
Reset	Boolean	Cancels pending request
Body	String	Request body (overrides configured body)

Outputs

Name	Type	Description
Success	Boolean	True if request succeeded (2xx status)
Status	Integer	HTTP status code (200, 404, 500, etc.)
Body	String	Response body text
Error	String	Error message if request failed
Executed	Boolean	Pulses true when request completes
Image ID	String	Reference if response is a JPEG image

Properties

Property	Description
URL	Full URL including protocol (https://...)
Method	GET, POST, PUT, DELETE, PATCH
Body Type	none, form, json, raw, xml
Body	Request body content
Headers	Custom HTTP headers
Params	URL query parameters
Timeout	Request timeout in seconds
Skip TLS Verify	Ignore certificate errors

Authentication

Type	Description
None	No authentication
Basic	Username/password (base64 encoded)
Digest	Challenge-response authentication

Examples

GET Request

URL: https://api.example.com/status
Method: GET

POST with JSON Body

URL: https://api.example.com/events
Method: POST
Body Type: json
Body: {"event": "motion", "camera": "entrance"}

POST with Dynamic Body

Wire a string to the Body input to override the configured body dynamically.

Custom Headers

Authorization: Bearer your-token-here
Content-Type: application/json
X-Custom-Header: value

Query Parameters

URL: https://api.example.com/search
Params:
  - q: searchterm
  - limit: 10

Results in: https://api.example.com/search?q=searchterm&limit=10

Handling Image Responses

When the response is a JPEG image, the node stores it in the image cache and outputs an Image ID. Connect this to a JPEG Viewer node to display the image.

[HTTP Request] ─→ Image ID ─→ [JPEG Viewer]

Error Handling

Status	Meaning
200-299	Success
400	Bad request (check your body/params)
401/403	Authentication failed
404	URL not found
500	Server error
0	Network error (check connectivity)

Tip

Connect the Error output to a Logging node to see detailed error messages.

Sending Camera Snapshots

To send a camera image via HTTP:

Add Image Snapshot node to capture from camera
Configure HTTP Request with your upload URL
Use the Image ID from the snapshot in your request

The HTTP node can reference cached images when sending to external services.