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README.md

WLED Driver Board (ESP32-C3 / D1 Mini Compatible)

A compact LED controller board designed to simplify running WLED using either an ESP32-C3 module or a Wemos D1 Mini.

This board integrates power regulation and signal routing to reduce wiring and external components.

Features

  • Supports ESP32-C3 (recommended)
  • Compatible with Wemos D1 Mini (ESP8266)
  • Designed for WLED firmware
  • Input voltage up to 28V DC
  • On-board 3.3V step-down regulator
  • Works with addressable LED strips (WS281x, etc.)
  • Compact and easy to integrate

Power

  • Input Voltage: up to 28V DC
  • On-board regulator provides ~4.8V for the controller

NOTE:

  • LED strips are powered directly from the input voltage
  • The board does NOT regulate LED voltage

Make sure your LED strip matches your supply voltage (5V, 12V, 24V, etc.)

Supported Controllers

ESP32-C3 (Recommended)

  • Lower power consumption
  • Better performance than ESP8266
  • Often includes native USB

Wemos D1 Mini (ESP8266)

  • Drop-in compatible
  • Fully supported by WLED
  • Good for simple or low-cost builds

WLED Setup

  1. Solder your controller (ESP32-C3 or D1 Mini)
  2. Connect power supply (max 28V)
  3. Connect LED strip:
    • V+
    • GND
    • DATA
  4. Flash WLED firmware
  5. Configure GPIO in WLED web interface

Typical GPIO

ESP32-C3:

  • LED Data: configurable (example GPIO2)

D1 Mini:

  • LED Data: D4 (GPIO2)

GPIO can be changed in WLED settings.

Connections

Power Input

  • VIN
  • GND

LED Output

  • V+ (same as input)
  • GND
  • DATA

Controller Headers

  • ESP32-C3 or Wemos D1 Mini

Design Notes

  • 3.3V regulator only powers the controller
  • LED power is passed directly from input
  • Keep data wire short for stability
  • Level shifting may be needed for long runs

Safety

  • Do NOT exceed 28V input
  • Check polarity before powering
  • Use proper wiring for high current loads
  • Ensure adequate cooling if running large LED setups

Use Cases

  • LED strips (WS2812B, WS2815, SK6812)
  • Ambient lighting
  • Home automation
  • 12V / 24V LED installations

License

MIT / Open Hardware (modify as needed)