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LED Grab

Created by Alexei Dolgolyov • dolgolyov.alexei@gmail.com • Source Code

📐 LED Calibration

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⚙️ General Settings

Device Name:

WLED URL:

IP address or hostname of your WLED device

Health Check Interval (s):

How often to check the WLED device status (5-600 seconds)

🎯 Add Target

Target Name:

WLED Device:

Select the WLED device to stream to

Picture Source:

Select a source that defines what to capture

Border Width (px):

How many pixels from the screen edge to sample for LED colors (1-100)

Interpolation Mode:

How to calculate LED color from sampled pixels

Smoothing: 0.3

Temporal blending between frames (0=none, 1=full). Reduces flicker.

🔑 Login to WLED Controller

Please enter your API key to authenticate and access the LED Grab.

API Key:

Your API key will be stored securely in your browser's local storage.

Confirm Action

Add New Device

Device Name:

WLED URL:

Add Capture Template

Template Name:

Description (optional):

Capture Engine:

Select the screen capture technology to use

Configuration

Test Capture Template

Display:

Capture Duration (s): 5

Test Source

Capture Duration (s): 5

Test Processing Template

Source:

Capture Duration (s): 5

Add Source

Source Name:

Display:

Which screen to capture

Capture Template:

Engine template defining how the screen is captured

Target FPS:

Target frames per second for capture (10-90)

30

Source:

The source to apply processing filters to

Processing Template:

Filter template to apply to the source

Image Source:

Enter a URL (http/https) or local file path to an image

Preview

Description (optional):

Add Processing Template

Template Name:

Description (optional):

Full size preview

Select a Display