A1-SLWF-03U

A1-SLWF-03U

The A1-SLWF-03U is an ESP32 addressable-LED controller pre-flashed with sound-reactive WLED. It features a built-in I2S microphone (ICS-43434), IR receiver, capacitive touch button, and 2–8 LED channels, all on a compact 57 × 30 × 23 mm board. USB-C powered with support for 5/12/24V DC input via screw terminal or barrel jack. Plug-and-flash with no BOOT-button dance. Compatible with WS2812B, WS2811, WS2813, WS2815, SK6812, APA102, and more. Supports WLED-SR, ESPHome (with BT Proxy), Home Assistant native integration, MQTT, and OTA updates.

Key Features

• ESP32 dual-core, 16 MB flash
• Built-in I2S microphone (ICS-43434) for sound-reactive effects
• 38 kHz IR receiver and capacitive touch button
• 2 screw-terminal + 6 DIY-pinout LED channels
• USB-C, DC barrel, and screw terminal power (5/12/24V)
• Reverse-polarity and over-voltage protected
• Pre-flashed WLED-SR, ESPHome compatible
• Drives up to ~2000 LEDs at 30 FPS