4-Channel Ethernet WLED Controller with ESP32, DMX Input/Output, 16A Relay, Fuse and PDM Microphone
 
Stable Wired Control for Addressable LED Projects
This all-in-one Ethernet WLED controller is powered by an ESP32-WROOM-32E module with 8MB flash memory. It combines four-channel LED control, DMX input and output, sound-reactive capability, power switching, circuit protection, and firmware flashing functions on one compact board.
It is ideal for addressable LED installations, stage lighting, architectural lighting, holiday displays, signs, and customized lighting automation projects.
 
Key Features
Ethernet WLED Control
The wired Ethernet connection provides stable network communication for permanent installations and locations where Wi-Fi coverage may be weak, congested, or unreliable.
 
Four Independent Output Channels
Four LED data channels allow multiple addressable LED strips, zones, or lighting sections to be controlled from a single controller.
The actual number of supported LEDs depends on the firmware configuration, selected effects, frame rate, power supply, and installation conditions.
 
Built-In Logic-Level Shifter
The integrated logic-level shifter improves compatibility between the ESP32 data signals and compatible addressable LED strips. It helps provide cleaner and more reliable data transmission, especially when compared with connecting LED data lines directly to the ESP32.
 
DMX Input and Output
Built-in DMX input and output allow the controller to receive DMX commands and connect with other compatible DMX equipment.
Suitable for:
Stage and event lighting
DJ installations
Architectural lighting
Entertainment systems
WLED and DMX integration projects
 
Built-In 16A Relay
The integrated 16A-rated relay can switch the connected power circuit, helping reduce standby power consumption and simplify system wiring.
 
Replaceable 16A Fuse
A replaceable 16A-rated fuse is installed on the board for convenient circuit protection and maintenance. If the fuse needs to be replaced, the complete controller does not need to be replaced.
 
Built-In PDM Microphone
The integrated digital PDM microphone supports sound-reactive WLED effects without requiring an external microphone module.
Create lighting effects that respond to:
Music
Voice
Beats
Ambient sound
 
Reserved Digital GPIO
One digital GPIO connection is reserved for external accessories and customized functions.
It can be used with compatible devices such as:
Push buttons
Switches
Motion sensors
Door sensors
Other digital sensor modules
Firmware configuration may be required.
 
Built-In CH340K
The onboard CH340K USB-to-serial chip makes firmware flashing, upgrading, and troubleshooting more convenient. It is suitable for users who want to update WLED or install compatible custom firmware.
 
Technical Specifications
Item
Specification
Product Type
Ethernet WLED Controller
Main Module
ESP32-WROOM-32E(8MB Flash)
Voltage
5～24V
Firmware Compatibility
WLED and compatible ESP32 firmware
Network Connection
Wired Ethernet
LED Output Channels
4
Signal Conditioning
Built-in logic-level shifter
DMX Interface
DMX input and DMX output
Relay
Built-in 16A-rated relay
Fuse
Replaceable 16A-rated fuse
Microphone
Built-in digital PDM microphone
Expansion Interface
1 reserved digital GPIO
Firmware Flashing Chip
CH340K USB-to-serial converter
Sound-Reactive Support
Yes, subject to firmware configuration
External Accessories
Compatible switches, buttons, and digital sensors
Application
Addressable LED lighting and DMX control projects
 
Typical Applications
Addressable LED strip projects
Home and commercial decorative lighting
Stage and DJ lighting
Music-reactive LED installations
Holiday and outdoor lighting displays
Architectural lighting
Shop signs and display lighting
Smart-home lighting projects
DIY WLED and DMX systems
 
Important Notes
Please confirm the controller input voltage and ensure it matches your power supply and LED strips before connection.
The relay and fuse are rated up to 16A. Actual safe operating current depends on the installation, voltage, wire size, connector capacity, ventilation, ambient temperature, and load type.
Use an appropriately rated power supply and wiring for the total LED load.
Disconnect all power before wiring, replacing the fuse, or connecting accessories.
DMX, GPIO, sound-reactive functions, and output channel assignments may require configuration in WLED or compatible firmware.
Firmware features may vary depending on the installed WLED version.
For high-current installations, installation by a qualified professional is recommended.
 
GPIO:
V2  Version
Button(GPIO0)
Relay(GPIO2)
DAT1(GPIO5)
DAT2(GPIO16)
DAT3(GPIO4)
DAT4(GPIO12)
DMX+(GPIO13)
DMX-(GPIO34)
DMX EN(GPIO33)
I2S_SDPIN(GPIO35)
I2S_WSPIN(GPIO15 )
I2S_CKPIN(-1)
 
GPIO:
Button(GPIO0)
Relay(GPIO2)
DAT1(GPIO5)
DAT2(GPIO16)
DAT3(GPIO4)
DAT4(GPIO12)
DMX+(GPIO13)
DMX-(GPIO33)
I2S_SDPIN(GPIO32 )
I2S_WSPIN(GPIO15 )
I2S_CKPIN(-1)
 
The first rule of upgrading: If it ain't broke, don't fix it!
In other words, ensure that there is a good reason to mess with a working installation (e.g., a need to use a new feature or address a found problem fixed in the current version).
 
Custom DMX Version firmware
Custom General Version firmware
 
The device WLED firmware uses DAT1 (GPIO5) as the DATA of the WS281X type light strip by default. If you have other types of light strips, please set it on the setting page according to your actual situation