[Free] WLED - Control WLED LED strips via HTTP API.

Extensions
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1

🏃‍♂️ WLED

An extension for MIT App Inventor 2.

:memo: Specifications

:package: Package: io.th.wled
:floppy_disk: Size: 77.7 KB
:gear: Version: 1.0
:iphone: Minimum API Level: 7
:date: Updated On: 2025-07-13T18:30:00Z
:computer: Built & documented using: FAST v2.8.4

:arrow_down: Download aix file on BuyMeCoffee Page.
:placard: Download aia/apk on GitHub
aia
wled-v2.aia (85.5 KB)

:handshake: Multi-Components

  1. WLED
  2. WheelColorPicker

New Update - 21-10-2025
Summary - Scans for WLED devices on the local network using mDNS.
3. WledIPScanner

:jigsaw: WLED

This extension is developed by TechHamara using Fast.Extension to control WLED LED strips via HTTP API (Home · wled/WLED Wiki · GitHub) and WebSocket API (Home · wled/WLED Wiki · GitHub). It allows for seamless integration and control of WLED devices within the App Inventor environment, enabling users to create custom applications that interact with WLED LED strips.
Telegram | GitHub
BuyMeaCoffee | YouTube
Find More Extension
Terms & Conditions

Demo

IMG_20250720_120416.jpg

Screenshot_2025-07-15-19-47-08-899_appinventor.ai_Techhamara91.wled.jpg

Screenshot_2025-07-15-19-48-33-186_appinventor.ai_Techhamara91.wled.jpg

Screenshot_2025-07-15-19-47-35-082_appinventor.ai_Techhamara91.wled.jpg

Screenshot_2025-07-15-19-49-33-830_appinventor.ai_Techhamara91.wled.jpg

Screenshot_2025-07-15-19-49-45-589_appinventor.ai_Techhamara91.wled.jpg

YouTube Video

Blocks

SyncError_Event
Response_Event
Rebooted_Event
InfoReceived_Event
Error_Event
ConnectionStatus_Event
SyncResponse_Event

Color_Method
ClearSegments_Method
UsermodeGPIO_Method
Transition_Method
Toggle_Method
Time_Method
State_Method
ShowWLED_Method
ShowLivePreview_Method
SegmentColor_Method
Segment_Method
SavePreset_Method
Reboot_Method
Preferences_Method
Playlist_Method
I2CPins_Method
GetInfo_Method
GetEffectsList_Method
EnableAutoSync_Method
DefaultColor_Method
ColorAndEffect_Method

SyncInterval_Get_Property
Speed_Set_Property
SingleColor_Set_Property
Power_Set_Property
Palette_Set_Property
NumLEDs_Set_Property
IsConnected_Get_Property
IP_Set_Property
Intensity_Set_Property
Effect_Set_Property
DeletePreset_Set_Property
DefaultBrightness_Set_Property
CurrentIP_Get_Property
ConnectionMessage_Get_Property
Brightness_Set_Property
AutoSync_Set_Property
AutoSync_Get_Property
ARGBColor_Set_Property
ApplyPreset_Set_Property
White_Set_Property
TriggerMacro_Set_Property
Time_Set_Property
SyncInterval_Set_Property

WLED Documentation

Events:

WLED has total 7 events.

Response

Triggered when WLED returns a response.

Parameter Type
response text

Error

Triggered when an error occurs.

Parameter Type
error text

SyncResponse

Triggered when sync returns state.

Parameter Type
response text

SyncError

Triggered when sync fails.

Parameter Type
error text

InfoReceived

Triggered when WLED info JSON is received. Example: InfoReceived(info) receives WLED info JSON.

Parameter Type
info text

Rebooted

Triggered when WLED device has rebooted.

ConnectionStatus

Triggered when connection test to WLED device completes.

Parameter Type
connected boolean
message text

Methods:

WLED has total 21 methods.

Color

Set color. Provide R, G, B values (0-255).

Parameter Type
r number
g number
b number

State

Fetch the current WLED JSON state.

ColorAndEffect

Quickly set color + effect + brightness

Parameter Type
r number
g number
b number
fx number
bri number

SavePreset

Save current state to a preset. Example: SavePreset(1, 'MyPreset') saves current state to preset 1 with name 'MyPreset'.

Parameter Type
presetId number
name text

ClearSegments

Clear all segments. Example: ClearSegments() clears all segments.

Segment

Set a segment with effect and color. Example: Segment(1, 0, 100, 1, 100, 100, [255, 0, 0]) sets segment 1 with effect 1, speed 100, intensity 100, and color [255, 0, 0].

Parameter Type
id number
start number
stop number
fx number
speed number
intensity number
rgb list

Transition

Send transition effect with fade and segment JSON. Example: Transition(1000, '[{"id":1,"start":0,"stop":100,"col":[255,0,0]}]') sends a transition effect with fade of 1000ms and segment JSON.

Parameter Type
fadeMillis number
jsonSegmentArray text

EnableAutoSync

Enable auto state sync. Example: EnableAutoSync(true, 5000) enables auto state sync with interval of 5000ms.

Parameter Type
enable boolean
intervalMillis number

Toggle

Toggle WLED power state.

GetInfo

Fetch WLED info JSON. Fires OnInfoReceived event.

SegmentColor

Set color for a specific segment. Example: SegmentColor(1, 255, 0, 0) sets segment 1 to red.

Parameter Type
segmentId number
r number
g number
b number

Reboot

Reboot the WLED device. Fires OnRebooted event. Example: Reboot() reboots the WLED device.

DefaultColor

Set default color for WLED. Example: DefaultColor(255, 0, 0) sets the default color to red.

Parameter Type
r number
g number
b number

Preferences

Fetch current WLED preferences (state JSON).

Time

Get WLED device time.

UsermodeGPIO

Set usermode GPIO pin and mode. Example: UsermodeGPIO(1, 1) sets GPIO pin 1 to mode 1.

Parameter Type
pin number
mode number

Playlist

Set the active playlist by ID. Example: SetPlaylist(1) activates playlist 1.

Parameter Type
playlistId number

I2CPins

Set I2C SDA and SCL pins (requires WLED usermod that supports this API). Example: I2CPins(21, 22) sets SDA to GPIO 21 and SCL to GPIO 22.

Parameter Type
sdaPin number
sclPin number

GetEffectsList

Returns a list of WLED effects with their IDs and names.

  • Return type: list

ShowWLED

Loads the WLED web interface inside a given arrangement using WebView (WLED must be running on the same network as the device and the IP address must be correct and running, otherwise the setup will not work).

Parameter Type
arrangement component
wledIp text

ShowLivePreview

Show fast live WLED preview inside a given arrangement using optimized WebView (WLED must be running on the same network as the device and the IP address must be correct and running, otherwise the preview will not work).

Parameter Type
arrangement component
wledIp text

Setters:

WLED has total 18 setter properties.

IP

Set the WLED IP address.

  • Input type: text

Power

Turn WLED on or off.

  • Input type: boolean

Brightness

Set brightness 0-255.

  • Input type: number

Effect

Set effect ID.

  • Input type: number
  • Helper type: EffectType
  • Helper enums: Solid, Blink, Breathe, Wipe, WipeRandom, RandomColors, Sweep, Dynamic, Colorloop, Rainbow, Scan, DualScan, Fade, Chase, ChaseRainbow, Running, Saw, Twinkle, Dissolve, DissolveRnd, Sparkle, SparkleDark, SparklePlus, Strobe, StrobeRainbow, MultiStrobe, BlinkRainbow, ChaseWhite, ChaseColor, ChaseRandom, ChaseFlash, ChaseFlashRnd, RainbowRunner, Colorful, TrafficLight, SweepRandom, Running2, RedAndBlue, Stream, Scanner, Lighthouse, Fireworks, Rain, Meteors, FireFlicker, Paparazzi, FireworksStarburst, Fireworks1D, Colorful1D, FillNoise, NoisePal, SineWave, Plasma, Ripple, Heartbeat, Pacifica, Ctwinkle, SolidPattern, TwinkleUp, TwinkleFade, ScannerDual, Flow, RandomTwinkles, Sunset, Police, Fire2012, CandyCane, Blends, PoliceAll, TwoAreas, HalloweenEyes, SolidGlitch, TriChase, ICU, Lighthouse2, Stream2, Matrix, RippleRainbow, StreamMulti, WipeCenter, SparklePulse, Twinkle2, TwinkleCustom, ChaseGlow, TwinkleFadeFast

Speed

Set effect speed (0-255).

  • Input type: number

Intensity

Set effect intensity (0-255).

  • Input type: number

Palette

Set palette ID. Example: Palette(1) sets the palette ID to 1.

  • Input type: number

ApplyPreset

Apply a preset. Example: ApplyPreset(1) applies preset 1.

  • Input type: number

DeletePreset

Delete a preset by ID. Example: DeletePreset(1) deletes preset 1.

  • Input type: number

SingleColor

Set a single color using an integer (0xRRGGBB or 0xAARRGGBB). Alpha is ignored.

  • Input type: number

ARGBColor

Set ARGB color using integer (0xAARRGGBB). Alpha channel blends with existing colors.

  • Input type: number

AutoSync

Get or set auto sync state.

  • Input type: boolean

SyncInterval

Get or set sync interval in milliseconds (default 5000).

  • Input type: number

White

Set white channel value (0-255).

  • Input type: number

DefaultBrightness

Set default brightness for WLED. Example: DefaultBrightness(100) sets the default brightness to 100.

  • Input type: number

Time

Set WLED device time (ISO 8601 string).

  • Input type: text

TriggerMacro

Trigger a WLED macro by ID. Example: TriggerMacro(1) triggers macro 1.

  • Input type: number

NumLEDs

Set the total number of LEDs for the main segment (segment 0). Example: NumLEDs(150) sets the total number of LEDs to 150.

  • Input type: number

Getters:

WLED has total 5 getter properties.

AutoSync

Get or set auto sync state.

  • Return type: boolean

SyncInterval

Get or set sync interval in milliseconds (default 5000).

  • Return type: number

IsConnected

Get the current connection status.

  • Return type: boolean

ConnectionMessage

Get the last connection message.

  • Return type: text

CurrentIP

Get the current IP address.

  • Return type: text

:jigsaw: WheelColorPicker

A color picker component developed by TechHamara using Fast technology, offering a user-friendly interface for selecting colors with various options such as wheel type, density, and sliders for lightness and alpha.Telegram | GitHub
BuyMeaCoffee | YouTube
Find More Extension
Terms & Conditions

Blocks

ColorSelected_Event
ColorChanged_Event
WheelTypeChanged_Event

Blue_Method
AlphaValue_Method
WheelTypeString_Method
Value_Method
ShowDialogWithButtons_Method
ShowDialog_Method
SelectColor_Method
Saturation_Method
Red_Method
Hue_Method
Green_Method
FlowerWheel_Method
Create_Method
ColorRGBA_Method
ColorRGB_Method
ColorHSV_Method
ColorHex_Method
CircleWheel_Method

WheelType_Get_Property
ShowLightnessSlider_Set_Property
ShowLightnessSlider_Get_Property
ShowColorPreview_Set_Property
ShowColorPreview_Get_Property
ShowColorEdit_Set_Property
ShowColorEdit_Get_Property
ShowBorder_Set_Property
ShowBorder_Get_Property
ShowAlphaSlider_Set_Property
ShowAlphaSlider_Get_Property
ShowAlpha_Set_Property
ShowAlpha_Get_Property
PickerCount_Set_Property
PickerCount_Get_Property
Lightness_Set_Property
Lightness_Get_Property
Enabled_Set_Property
Enabled_Get_Property
DialogTitle_Set_Property
DialogTitle_Get_Property
Density_Set_Property
Density_Get_Property
Color_Set_Property
Color_Get_Property
Alpha_Set_Property
Alpha_Get_Property
WheelType_Set_Property

Wheel Color Picker Documentation

Events:

WheelColorPicker has total 4 events.

ColorChanged

Event raised when the color is changed

Parameter Type
newColor number

ColorSelected

Event raised when the color is selected

Parameter Type
selectedColor number

WheelTypeChanged

Event raised when the wheel type is changed

Parameter Type
newType text

ColorSelectedRGB

Event raised when the color is selected, returning separate R, G, B values

Parameter Type
red number
green number
blue number

Methods:

WheelColorPicker has total 18 methods.

Create

Initialize inside an arrangement.

Parameter Type
arrangement component

ColorHex

Get the color of the picker as a hex string

  • Return type: text

ColorRGB

Set the color from RGB values

Parameter Type
red number
green number
blue number

ColorRGBA

Set the color from RGBA values

Parameter Type
red number
green number
blue number
alpha number

Red

Get the red component of the current color

  • Return type: number

Green

Get the green component of the current color

  • Return type: number

Blue

Get the blue component of the current color

  • Return type: number

AlphaValue

Get the alpha component of the current color

  • Return type: number

ColorHSV

Set the color from HSV values

Parameter Type
hue number
saturation number
value number

Hue

Get the hue component of the current color

  • Return type: number

Saturation

Get the saturation component of the current color

  • Return type: number

Value

Get the value component of the current color

  • Return type: number

FlowerWheel

Set the wheel type to FLOWER

CircleWheel

Set the wheel type to CIRCLE

WheelTypeString

Get the current wheel type as string

  • Return type: text

SelectColor

Select the current color

ShowDialog

Show the color picker dialog

ShowDialogWithButtons

Show the color picker dialog with custom buttons

Parameter Type
positiveButtonText text
negativeButtonText text

Setters:

WheelColorPicker has total 14 setter properties.

Enabled

Get or set whether the color picker is enabled

  • Input type: boolean

Color

Get or set the current color

  • Input type: number

ShowAlpha

Get or set whether to show alpha channel

  • Input type: boolean

Lightness

Get or set the lightness value (0.0 to 1.0)

  • Input type: number

Alpha

Get or set the alpha value (0.0 to 1.0)

  • Input type: number

WheelType

Get or set the wheel type (0 for FLOWER, 1 for CIRCLE)

  • Input type: number
  • Helper type: Type
  • Helper enums: Flower, Circle

Density

Get or set the density of the color wheel (2-12)

  • Input type: number

DialogTitle

Get or set the dialog title

  • Input type: text

ShowLightnessSlider

Get or set whether to show lightness slider

  • Input type: boolean

ShowAlphaSlider

Get or set whether to show alpha slider

  • Input type: boolean

ShowBorder

Get or set whether to show border

  • Input type: boolean

ShowColorEdit

Get or set whether to show color edit

  • Input type: boolean

ShowColorPreview

Get or set whether to show color preview

  • Input type: boolean

PickerCount

Get or set the number of color pickers (1-5)

  • Input type: number

Getters:

WheelColorPicker has total 14 getter properties.

Enabled

Get or set whether the color picker is enabled

  • Return type: boolean

Color

Get or set the current color

  • Return type: number

ShowAlpha

Get or set whether to show alpha channel

  • Return type: boolean

Lightness

Get or set the lightness value (0.0 to 1.0)

  • Return type: number

Alpha

Get or set the alpha value (0.0 to 1.0)

  • Return type: number

WheelType

Get or set the wheel type (0 for FLOWER, 1 for CIRCLE)

  • Return type: number

Density

Get or set the density of the color wheel (2-12)

  • Return type: number

DialogTitle

Get or set the dialog title

  • Return type: text

ShowLightnessSlider

Get or set whether to show lightness slider

  • Return type: boolean

ShowAlphaSlider

Get or set whether to show alpha slider

  • Return type: boolean

ShowBorder

Get or set whether to show border

  • Return type: boolean

ShowColorEdit

Get or set whether to show color edit

  • Return type: boolean

ShowColorPreview

Get or set whether to show color preview

  • Return type: boolean

PickerCount

Get or set the number of color pickers (1-5)

  • Return type: number

:jigsaw: WledIPScanner in V2 Update-21-10-2025

Developed by TechHamara. Scans for WLED devices on the local network using mDNS.

Blocks

OnError_Event
OnDeviceFound_Event
ScanStoped_Event
OnScanCompleted_Event

StopScan_Method
StartScan_Method

Thanks

@TechHamara

Feel free to contact us any quarry or suggestions.

7 Likes
2
  • Check out WLED Demo on YouTube Video :point_down:
2 Likes
3

Wonderful :heart_eyes::heart_eyes:

4

Thank you🙏 @JEWEL

1 Like
5

:jigsaw: WledIPScanner in V2 Update-21-10-2025

Developed by TechHamara. Scans for WLED devices on the local network using mDNS.

Blocks

OnError_Event
OnDeviceFound_Event
ScanStoped_Event
OnScanCompleted_Event

StopScan_Method
StartScan_Method

Demo

In V2 Update
Wled-scan-v2.gif

wled-V2.jpg

Find Doc in github and Aix updated in first post.

2 Likes