Add smart lighting and sound effects to models, dioramas, and creative builds with Tiny FX W. This RP2040-powered controller drives mono and RGB LEDs typically found in LEGO®-compatible lighting kits, with wireless connectivity for IoT integration.

Create dynamic effects like flickering flames, atmospheric pulses, brightness adjustments, and motion-triggered lighting—all accompanied by sound effects through the onboard amplifier.

Key Features

RP2040 Processor – Dual Cortex-M0+ at 133MHz with 264KB SRAM
Wireless Connectivity – Raspberry Pi RM2 module for 2.4GHz WiFi and Bluetooth
6× Mono LED Channels – 2-pin JST-SUR connectors with indicator LEDs
1× RGB LED Channel – 4-pin JST-SUR connector with RGB indicator
3.2W I2S Amplifier – Onboard audio for sound effects
Qw/ST Connector – Add Qwiic/STEMMA QT breakouts
Sensor Input – 3-pin JST-SH for buttons, PIR, or potentiometers
4MB Flash – Plenty of storage for effects and audio
Fully Assembled – No soldering required

Specifications

Processor – RP2040 (Dual Cortex-M0+, 133MHz)
RAM – 264KB SRAM
Flash – 4MB QSPI
Power Input – USB-C or 2-pin JST-SUR (1A max)
Dimensions – 31.2 × 23.2 × 6.7mm

Effect Ideas

Flickering fire and candle effects
Atmospheric pulsing for spooky scenes
Motion-triggered lighting with PIR sensors
Dynamic brightness adjustments
Synchronised sound effects

Ideal For

LEGO® and construction kit lighting upgrades
Dioramas and shadowboxes
Book nooks and miniature scenes
Dollhouses and model buildings
Papercraft and creative projects

Note: LEDs, speaker, and cables sold separately. Not designed for addressable/Neopixel LEDs—see Plasma 2040 for that.

Resources

Pinout Diagram (PDF)
Schematic
PicoFX Library & Examples

LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this product.

RP2040 Development Boards

RP2040-Zero, a Pico-like MCU Board Based on Raspberry Pi MCU RP2040, Mini ver.

RP2040 Stamp

Adafruit QT Py RP2040

Adafruit KB2040 - RP2040 Kee Boar Driver

Beetle RP2040 Mini Development Board

Seeed XIAO RP2040 - Supports Arduino, MicroPython and CircuitPython

Tiny FX W - Wireless LED Effects Controller