Double the color, in a square.
A 12×12 RGB matrix with dual AW20216S drivers: 144 constant-current pixels, THT pins for breadboards.
In detail
LMX2d is our 12×12 RGB matrix: like two LMX2 merged onto a single board, with 144 LEDs driven by two AW20216S drivers over SPI (one per 6×12 half, selected with CS1 and CS2). You get the same clean gradients, smooth dimming and zero on-camera flicker as the LMX2, but on a square canvas with double the resolution — ideal for icons, pixel art and more legible text. It ships with a THT header made for breadboards, so you prototype without soldering, and it shares the WuaDisplay-LMX library with the whole family: switch panels with a single build flag.
Use cases
Repositories
Open design: PCB, library and firmware on GitHub.
Gallery
Pinout
What each pin on the board maps to.
THT header on the front side (left → right). CS1 drives the first 6×12 half and CS2 the second.
- GND GND (ground)
- SK SYNC
- MO MOSI (SPI)
- MI MISO (SPI)
- CK SCK / Clock (SPI)
- CS2 Chip Select (SPI) — second 6×12 matrix
- CS1 Chip Select (SPI) — first 6×12 matrix
- EN Enable
- V+ Power (5 V)
- Pixel-art artists who want a square canvas with more resolution.
- Icon, effects, lamp and generative-art projects.
- Makers who prototype on a breadboard and want a quality SPI-driven RGB panel.
When 6×12 isn't enough
- At 6 pixels wide, text and icons feel cramped.
- Chaining two panels adds wires, solder joints and points of failure.
- Cheap addressable LEDs flicker on camera and dim with visible steps.
The LMX2d solution
- A square 12×12 format (144 pixels) on a single board: double the resolution of the LMX2.
- Two AW20216S constant-current drivers, one per half (CS1 / CS2): stable brightness and zero flicker.
- Breadboard-friendly THT pins: plug it in and prototype without soldering, with the WuaDisplay-LMX library.
What makes it special
Dual driver, flicker-free brightness
Two AW20216S constant-current drivers run all 144 LEDs: clean gradients and fine dimming across the whole panel, with no on-camera flicker.
Square 12×12 canvas
Like two LMX2 on a single board: double the resolution for icons, pixel art and more legible text in a square format.
Breadboard-friendly
THT pins in a single header: plug it into a breadboard and prototype without soldering. The same WuaDisplay-LMX library as the rest of the family.
Want it for your project?
Tell us what you want to build and we'll help you choose and quote.
