board I/O module

Multiplexed LED Matrix

The Multiplexed LED Matrix is a board I/O module in the LabWired part catalog. Its catalog type is led-matrix-mux. It connects to the MCU over GPIO. It has 10 pins. A registered peripheral model runs in the engine: the firmware talks to it over the real bus and gets device-accurate responses.

From the catalog: led_matrix. Canvas is the micro:bit v2 5×5 (R1–R5, C1–C5). Brightness is on-time per persistence window. Current sharing and light sensing are not modelled.

Key facts

Category	Board I/O modules
Catalog type	`led-matrix-mux`
Interface	GPIO
Pins	10

What LabWired simulates

What is simulated

Simulated device model

How it was validated

Built from the datasheet. Implemented from the part’s register documentation and exercised by automated tests. Nothing physical was ever placed next to it.

Multiplexed LED Matrix pinout

GPIO: R1, R2, R3, R4, R5, C1, C2, C3, C4, C5

Pin	Electrical type	Function
`R1`	Input	GPIO
`R2`	Input	GPIO
`R3`	Input	GPIO
`R4`	Input	GPIO
`R5`	Input	GPIO
`C1`	Input	GPIO
`C2`	Input	GPIO
`C3`	Input	GPIO
`C4`	Input	GPIO
`C5`	Input	GPIO

How to simulate the Multiplexed LED Matrix in LabWired

Open the Playground at app.labwired.com and place an MCU board.
Add the Multiplexed LED Matrix (catalog type led-matrix-mux).
Connect R1, R2, R3, R4, R5, C1, C2, C3, C4 and C5 to free GPIO pins.
Run the firmware. It drives and reads the pins of the part, and the device model responds on those pins.

Related Board I/O modules

All Board I/O modules · All parts

No manufacturer datasheet is indexed for this part yet, so none is linked here.

Wire it up in Playground → See the full validation matrix