Wizard!OTG

GUIDE
Wizard OTG Front
Wizard OTG Back
Attach JST connector. Press down on the circular indents on the terminal to slide in each wire. Release indent to lock wire in place.
Connect your 5V LEDs
List of compatible varieties
Power with 5V USB-C
Up to 3A/ 15W
Attach a 3.7V LiPo battery to make your LEDs portable and rechargeable!
For full 3A output, use min 3Ah battery
Read Battery Power before use.
Select the WizardOTG WiFi from your device
The password is wled1234

To add to your WiFi, select Wifi Settings
Scan for/ select your network, enter password, click save & connect

After downloading the WLED app, you will see the device when connected to Wifi
To configure your LEDs, click Config, LED Preferences, then choose type and set length
From the Colors tab, select the palettes or colors that will be applied to the current effect

From the effects tab, set the current effect
The default effect is solid and color is orange
To save current effect/color as a preset, click the presets tab and + Preset.

The flash, strobe, fade, and smooth buttons on the IR remote are mapped to preset IDs 1-4
To turn off indicator LED, open the BQ25895 usermod and set brightness to 0
If you are using or have made a matrix/ panel, configure in 2D Configuration

This will unlock 50+ new 2D effects
To use the scrolling text 2D effect, go to the segments tab, rename Segment 0 to your text, and then select the scrolling text effect
DOCUMENTATION

Turn your device WiFi on and off until WizardOTG appears in network list.

Password is wled1234

Press reset button and try again if still no-show

ONLY use protected 3.7V lithium polymer batteries.

To use for full 3A output, you must use a minimum 3Ah battery.

DO NOT use unprotected, raw, multi-cell, mixed chemistry, or damaged batteries.

Controller has standard JST-PH 2.0 connector used by commonly available types.

More Info

The Wizard OTG comes pre-installed and pre-configured with WLED-MM-14.5 firmware.

To access settings and control your LEDs, connect via the web access portal or app.

To change LED type and length use the Led Preferences menu under Config.

Saved presets 1-4 are mapped to the flash, strobe, fade, and smooth buttons on the IR remote.

NO. The Wizard OTG is designed for 5V input and output only.

Yes! When LEDs are powered via USB-C with a battery attached, the battery will charge with whatever current is left from the LED load, up to the set charge current (default 1A). The controller intelligently manages power distribution.

If LED power consumption is near or at the total available power, ie RGB max brightness white, the battery may charge slowly or not at all.

Compatible LEDs include most 5V addressable RGB and RGBW IC strips, panels, rings, etc

WS2812B, WS2811, SK6812, SK9822, APA102, many brand names

List of compatible varieties

To turn off the indicator LED, access the BQ25895 usermod in the Config menu and set the indicator brightness to 0.

SPECIFICATIONS

Power Supply

5V USB-C up to 3A/15W and/or 3.7V lithium polymer battery for 5V output up to 3A

Controller size

55 x 46 x 7.45mm w/ M3 mounting holes

ESP32

ESP32-WROOM-32E module w/ CH340K UART

GPIOs

GPIO Use
0WLED Button 0 Pushbutton ("self-destruct") / Boot
4TSOP4838 IR
13Relay (invert)
165V Level Shifted (LED Data)
18BQ25895 - SDA
19BQ25895 - SCL
21General Use
22General Use
23General Use
25SPM1423 PDM mic - DATA
26SPM1423 PDM mic - CLK
32WS2812B Status Indicator LED (configurable in BQ25895 usermod)
33BQ25895 - INT

BATTERY POWER

The Wizard OTG is compatible with protected 3.7v lithium polymer batteries ONLY, these are readily available from major retailers like amazon and are standard in millions of consumer products. Many of these batteries come with the JST-PH 2.0 connector, which is compatible with the Wizard OTG.


Please choose a battery between 1500mAh and 10000mAh and follow the safety guidelines provided by the manufacturer of your selected battery.


For 3A output use minimum 3000mAh cell, the output can be increased in Led Preferences


Discharge current limit is equivalent to the battery's C-rating multiplied by its capacity (in Ah).


Safety guidelines generally include but are not limited to:

  • DO NOT use battery if swollen, punctured, or damaged in any other way
  • DO NOT store in direct sunlight
  • DO NOT expose to water
  • DO NOT charge batteries at temperatures outside of 0°C to 45°C (32°F to 113°F)

DO NOT USE WITH UNPROTECTED/ RAW, MULTI-CELL, MIXED CHEMISTRY, OR DAMAGED BATTERIES.

BATTERY CHARGING

TI BQ25895 Switch-Mode IC w/ Coilcraft Inductor

Input Limit: 3A

Boost max output: 5V 3A

Max charge voltage: 4.2V

Default charge current: 1A

  • This value can be configured in the "BQ25895" usermod
  • Follow the manufacturer guidelines for specific batteries.
  • When LEDs are on USB-C power with a battery attached, the battery will charge with whatever current is left from the LED load up to the set charge current.
  • 1A is generally suitable for lipo batteries with a capacity of 1000mAh and greater
  • For larger cells the rate can be increased per manufacturer guidelines.
  • DO NOT use batteries with a capacity below 1000mAh

When LEDs are on USB-C power with a battery attached, the battery will charge with the current difference from the supplied power and LED load up the set charge current

Battery voltage/ status reading may vary under load, temp, etc

DO NOT charge the battery at temperatures outside of 0°C to 45°C (32°F to 113°F)

Please ensure polarity is correct before connecting the battery.

FIRMWARE

Pre-installed WLED-MM-14.5

IR REMOTE + RECEIVER

Includes pre-configured 24-key remote

Flash, strobe, fade, and smooth buttons are set to user-presets 1 thru 4

(configure presets in app or web)

MICROPHONE

SPM1423 PDM mic (top-port)

LED OUTPUT

5V, GPIO16, and GND terminal

Level-shifted data to 5V using SN74AHCT125

249ohm resistor for signal conditioning

Load switch relay on 5V output

WAGO CONNECTORS

WAGO 2060 compatible w/ 18-24 gauge wire

For attaching LED connector and other accessories

5V, IO16, GND | IO21, IO22, IO23 | 3V3, GND

Strip leads back around 7mm, press down on circle indent on top tab to insert

JST CONNECTORS

2-pin JST-PH for battery

Includes 3-pin JST-SM w/ wires for LEDs (Connect to LED output WAGO)

ESD PROTECTION

on all connections

AUTO-RESET FUSE

for safe 3A operation

PCB

4-Layer Design

ENIG Finish

2oz Outer Copper

1oz Inner Copper

FR4 TG155 Material

Low EMI

Optimized Thermals

AVAILABLE ON AMAZON →
© 2026