1. Introducció
This manual provides detailed instructions for setting up, operating, and maintaining your DOMRAEM DOM-WLE-18P 4-Channel ESP32 WLED Controller. This advanced controller features a built-in microphone for audio-reactive lighting, a UART port for easy programming, and flexible power options including Type-C PD and wide-voltage DC input. It is designed to control addressable LED strips with a wide range of dynamic effects and smart control capabilities.

The DOMRAEM ESP32 WLED controller features USB-C download capability, 16A fuse, 4-channel output, push button support, low power mode, DIY dynamic lighting, and remote control.
This video demonstrates the features and operation of the DOMRAEM ESP32 WLED controller, including power input options, app configuration, LED strip configuration, microphone mode, and remote control functionality.
2. Contingut del paquet
Si us plau, verifiqueu que tots els elements siguin presents al vostre paquet:
- Caixa d'embalatge *1
- ESP32 WLED Digital LED Controller *1
- Manual d'usuari *1
- Cable de connexió *1
- 4-Port Terminal Block *1
- 3cm Sticker *1

Package Contents: 1. Packaging Box *1, 2. ESP32 WLED Digital LED Controller *1, 3. User Manual *1, 4. Connection Cable *1, 5. 4-Port Terminal Block *1, 6. 3cm Sticker *1.
3. Especificacions
| Atribut | Valor |
|---|---|
| Número de model | DOM-WLE-18P |
| Nom del producte | ESP32 WLED Strip Controller With Mic/UART |
| Característiques | Addressable/DIY programmable |
| Power Input (Type-C PD) | 5 V/3 A, 12 V/3 A, 20 V/3 A (màx. 60 W) |
| Entrada d'alimentació (DC) | 5-24V |
| Corrent total de sortida | 16 A màx |
| Corrent de sortida/Canal | 12 A màx |
| Canals de sortida | 4-Channel Output |
| 4-ch IC Qty | 3200 Màx |
| 1-ch IC Qty | 800 Màx |
| Applicable Lights | WS2811 WS2812 WS2812B WS2813 SK6812 TM1814 WS2814 WS2805 Strip Light |
| Controled Method | WLED WIFI APP / WLED remote control |
| Mode de connexió | WIFI |
| Micròfon integrat | Sí |
| Descarrega UART | Sí |
| Material | ABS plastic, Fireproof PC |
| Mida | 109.5X46X17.5mm |
| Pes net (NW) | 55.1 g |
| Pes brut (GW) | 64.7 g |
| Temperatura de treball | -20~45°C |
| Suggested Wire Type | 0.34-4mm² (22-12AWG) |
| Longitud de ratllat | 10 mm |
| Treballa amb | MQTT, Home Assistant, Alexa |
| Certificació | CE, EMC, FCC, LVD, ROHS |

Product Parameters: Model No: DOM-WLE-18P, Input Voltage: DC 5V-12V-24V, Total Current: 16A Max, Output Current/Channel: 12A Max, 1-ch IC Qty: 800 Max, 4-ch IC Qty: 3200 Max, Remote Control: Yes, UART Download: Yes, Communication Protocol: WiFi, Stripping Length: 10mm, Suggested Wire Type: 0.34-4mm² (22-12AWG), Size: 109.5X46X17.5mm, N.W.: 55.1g, G.W.: 64.7g, Chip Type: ESP32, Built-in Mic: Yes, Working Temperature: -20~45°C, Material: Fireproof PC. Attention: Powered by USB-C 5V=3A / 12V=3A / 20V=3A Max. Maximum current 3A. Do Not Exceed these limits!

The DOMRAEM ESP32 WLED controller measures 109.5mm in length, 46mm in width, and 17.5mm in height.
4. Configuració
4.1. Power Input Options
The controller supports two main power input methods:
- **Type-C PD Input**: Connect a USB-C PD charger or power bank. The controller supports 5V/3A (15W), 12V/3A (36W), and 20V/3A (60W Max).
- **Dual DC 5-24V Input**: Use the quick-connect terminals for a wide-voltage DC input (5-24V). This method supports up to 16A total output.
⚠️ Voltage Warning: Always ensure the PD output voltage matches the requirements of your LED strip before connecting. For example, 5V strips must be used with a 5V PD setting. Using 12V/20V with a 5V strip will cause permanent damage to the LEDs.

The controller supports USB-C PD input up to 60W, compatible with 5V/3A, 12V/3A, and 20V/3A protocols. This ensures broad compatibility with most USB-C PD chargers and power banks.
4.2. Wiring the LED Strips
Connect your addressable LED strips to the controller's output terminals. The controller has 4 independent channels. Ensure correct polarity (V+, GND, Data) and match the voltage of your LED strips to the power input.

This diagram illustrates how to connect one, two, three, or four LED light strips to the DOMRAEM ESP32 WLED controller. Select the correct wiring method based on the number of light strips you are using.

Product Feature Introduction and Pinout: GND, GPIO2, GPIO16, GPIO17, GPIO18, V+, IO33, 16A Fuse, 4 Outputs, Microphone, UART, Opt, Restart, Indicator Light(IL). Powered by USB-C 5V=3A/12V=3A/20V=3A Max. Easy wiring DC 5V-12V-24V. Barrel Jack DC 5V-12V-24V/Ø5.5mm x 2.1mm.
4.3. App Download Methods
The WLED app is essential for full control and customization. You can download it as follows:
- **iOS**: Cerca 'WLED' or 'WLED Native' in the Apple App Store.
- **Android**: Cerca 'WLED Native' in the Google Play Store, or download the APK from the official GitHub releases page: https://github.com/Aircoookie/WLED-App/releases.

To download the WLED app: For iOS, search 'WLED' or 'WLED Native' in the App Store. For Android, procure 'WLED Native' from Google Play Store or download from the web: https://github.com/Aircoookie/WLED-App/releases.
5. Instruccions de funcionament
5.1. Funcions del botó
The controller features 'Restart' and 'Opt' buttons for various functions:
| Botó | Acció | Temps | Estat/Funció | Llum indicadora |
|---|---|---|---|---|
| Reinicieu | Premsa llarga | 8s | Switch to 5V/3A Max | Verd |
| Premsa llarga | 8s | Switch to 12V/3A Max | groc | |
| Premsa llarga | 8s | Switch to 20V/3A Max | Vermell | |
| Premsa breu | 1s | Switch to Download Mode | Blau | |
| Opt (GPIO0) | Aguanta | 10 s | Restableix la configuració de fàbrica | N/A |
| Premeu breument | Encendre/apagar | N/A | ||
| Manteniu premut | 2s | Canvia els colors | N/A |

Button Functions: Restart button (Long Press 8s: Switch to 5V/3A Max (Green), 12V/3A Max (Yellow), 20V/3A Max (Red); Short Press 1s: Switch to Download Mode (Blue)). Opt button (Hold 10s to reset; configure relay GPIO12 before use. Briefly press to turn on/off, press and hold for 2 seconds to switch colors). Attention: Connect LED strip only after voltages match; incorrect voltage will damage the LED strip.
5.2. App Configuration Steps (Initial Setup)
To connect your controller to your home WiFi network and control it via the WLED app:
- **Power on** the WLED controller.
- On your phone, go to **Settings** and enter **WiFi settings**.
- Find the WiFi network named **"WLED-Ap"** and connect to it using the password **"wled1234"**.
- After successful connection, your phone will automatically redirect to the WLED page (or you can open a browser and navigate to it).
- On the WLED page, click on **"WIFI SETTINGS"**.
- Click **"Scan"** to display available WiFi networks.
- **Select your 2.4GHz WiFi network** (5GHz networks are not supported). Enter your network password.
- Click **"Save"** at the top of the screen. The controller will restart and connect to your home WiFi.
- Connect your phone to the **same WiFi network** as the WLED controller.
- Open the **WLED app**. Click on the **"Blank space"** or the discovered device to enter the WLED control page.

APP Configuration Steps: 1. Power on the WLED controller. 2. Open phone settings, enter WiFi settings, find 'WLED-Ap', and connect with password 'wled1234'. 3. After successful connection, it redirects to the WLED page (or open browser). Click 'WIFI SETTINGS'. 4. Click 'Scan' to display accounts. 5. Enter password, click 'save'. 6. Connect phone and WLED controller to the same WiFi. 7. Open WLED app. 8. Click 'Blank space' to enter WLED page.
5.3. Direct WiFi Control (No App Required)
You can also control the WLED controller directly via its own WiFi hotspot without downloading the app:
- **Power on** the WLED controller.
- On your mobile phone, go to **Settings** and enter **WiFi settings**.
- Find the WiFi network named **"WLED-Ap"** and connect to it using the password **"wled1234"**.
- After successful connection, your phone will automatically redirect to the WLED page (or you can open a browser and navigate to it). This is the control interface.

You can access the control interface by connecting to the controller's WiFi hotspot ('WLED-Ap') with your mobile phone using the password 'wled1234'. This allows direct control without needing to download an additional app.
5.4. LED Strip Configuration
To ensure proper display, configure your LED strips within the WLED interface:
- Enter the WLED page (via app or direct WiFi).
- Click on **"config"**.
- Under **"Hardware setup"**, configure the following for each output channel (1-4):
- **LED outputs**: Select WS281x (or appropriate type for your strip).
- **Length**: Enter the number of IC chips (pixels) on your strip.
- **GPIO**: Assign the correct GPIO pin (e.g., GPIO2, GPIO16, GPIO17, GPIO18 as per the pinout diagram).
- **Note**: The "Length" is the number of IC chips, which can be set according to the actual situation.
- **Note**: The maximum current can be set according to the actual specifications of your LED strip (e.g., 5000mA).

The WLED app allows for segmented color control, enabling personalization of every strip segment to show different colors.
5.5. Microphone Function Configuration
To enable audio-reactive lighting, configure the microphone:
- Enter the WLED page and click on **"config"**.
- Click on **"Usermods"** to configure.
- First, check **"Enabled"**.
- Then, scroll down to find **"Digitalmic"**.
- Estableix els paràmetres següents:
- **Type**: Generic I2S PDM
- **Pin I2S SD**: 26
- **Pin I2S Ws**: 21
- After configuration, click **"save"**.
- **Restart** the controller for changes to take effect.

To configure the microphone function after resetting, enter the WLED page, click 'config', then 'Usermods'. Check 'Enabled', scroll down to 'Digitalmic'. Set Type: Generic I2S PDM, Pin I2S SD: 26, Pin I2S Ws: 21. Click 'save' after configuration and restart the device.
5.6. Operació de control remot
The controller supports a dedicated WLED remote control for convenient operation.
- **Power On/Off**: Use the ON/OFF buttons.
- **Mode Selection**: Buttons 1-4 can be configured to select favorite modes.
- **Brightness/Effects**: Adjust brightness and cycle through effects.

The remote control allows you to choose your preferred lighting modes and effects.

The WLED remote control offers long-range transmission, robust interference resistance, and low power consumption. Features include Preset Scene, Sleep Mode, Brightness Changeable, 50 meters control distance, WiFi Control, and ESP-NOW Zero-Delay.

The remote control allows users to set and select up to four favorite lighting modes for quick access.
5.7. Dynamic Effects and Synchronization
- **Dynamic Effects**: The WLED firmware comes pre-installed with over 100 dynamic lighting effects, including Rainbow, Breathing, Music Sync, and more. These can be selected and customized via the app.
- **Music Dynamic Mode**: With the built-in microphone, the controller can synchronize LED effects with ambient sound or music, creating an immersive experience.
- **Sync Effects**: If multiple WLED controllers are on the same WiFi network, their lighting effects can be synchronized using the 'Sync' feature in the app.

The WLED app offers over 100 dynamic lighting effects, including Solid, Blurs, Blink, Rainbow, Breathe, Candle, and more, allowing for diverse lighting customization.

The ESP32 WLED light strip controller can operate in Music Dynamic Mode, allowing the lights to synchronize and react to music.

On the same WiFi network, the lighting effects of LED strips connected to the WLED controller can be synchronized using the 'Sync' feature in the app.
6. Manteniment
- **Cleaning**: Use a dry, soft cloth to clean the controller. Do not use liquid cleaners or aerosols.
- **Storage**: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- **Firmware Updates**: Periodically check the WLED community or official sources for firmware updates to ensure optimal performance and access to new features. Updates can typically be performed via the UART port or over-the-air (OTA) through the WLED interface.
7. Solució De Problemes
7.1. LED Strip Not Lighting Up After Update/Reset
If your LED strip does not light up after a firmware update (OTA) or a factory reset, it might be due to the relay configuration:
- Enter the WLED page and click on **"config"**.
- Navigate to the **"Defaults"** section.
- Set the relay to **GPIO12**.
- Click the **"Save"** button.
- **Restart** the controller.
This design aims to reduce standby power consumption. Once the configuration takes effect, the standby power consumption of the device will drop to approximately 0.5 watts.

This image shows the WLED app's relay configuration. If the LED strip does not light up after a reset or OTA update, configure the relay to GPIO12, click 'Save', and restart the controller. This design aims to reduce standby power consumption to approximately 0.5W.
7.2. Problemes de connectivitat
- **Incorrect WiFi Band**: Ensure your home WiFi network is 2.4GHz. The controller does not support 5GHz networks.
- **Incorrect Password**: Double-check the WiFi password entered during configuration.
- **Controller Not Visible**: If the controller's 'WLED-Ap' hotspot is not visible, try a short press of the Restart button to enter download mode (blue indicator) and then restart normally.
7.3. LED Strip Damage
Always ensure the power input voltage coincideix amb el voltage requirements of your LED strip. Connecting a strip to an incorrect voltage (e.g., 5V strip to 12V/20V output) will cause permanent damage.
8. Consells d'usuari
- For advanced DIY projects, the IO33 interface can be used to connect external push switches, sensors, or other peripherals. Refer to the pinout diagram for GPIO assignments.
- Utilize the USB-C PD input for convenient power, especially when testing or using with portable power banks.
- Experiment with the numerous dynamic effects and segment control features in the WLED app to create unique lighting displays.

The IO33 interface is for DIY use and can be connected to push switches, sensors, and more. Button 0 (GPIO 33) functions: Short press (On/Off), Long press 1s (Adjust color), Long press 10s (Enter WiFi-AP mode, pop-up hotspot 'WLED-AP'). Button 1 functions: Short press (Adjust mode), Double-tap (Adjust color in mode), Long press (Adjust brightness). *Opt button is GPIO0.
9. Garantia i Suport
This product comes with a 2-year warranty. For technical support or warranty claims, please contact DOMRAEM Official Store directly through your purchase platform. Ensure you retain your proof of purchase.



