Adafruit 16x9 Charlieplexed PWM LED Matrix Driver - IS31FL3731

The IS31FL3731 transforms your LED projects with its PWM control of each LED in a 16x9 grid, offering vivid lighting effects without complex handling. Directly instruct the chip on which LED to illuminate and at what intensity for seamless operation.

The chip operates from 2.7 to 5.5 volts, ensuring adaptability with any microcontroller. Impressively, it allows address configuration such that up to four matrices can coexist on a single I2C bus, making it adept for intricate displays.

Among its features, the chip boasts sufficient RAM for up to eight distinct frames of display memory, enabling smooth animation playback and effortless transitions with a simple command. It's engineered for compactness when paired with matching breakout boards for LED grids in diverse colors like red, yellow, green, blue, and white.

For quick connectivity, the custom PCB adopts the STEMMA QT form, seamlessly integrating with SparkFun Qwiic I2C connectors. This promotes solderless connections, linking your development board to the IS31FL3731 or other accessories effortlessly. Although LED matrices are not included, matching LED grids are available, or you can craft your own following the datasheet.

Basic soldering is necessary to attach the driver backpack and matrix, connecting it all to a microcontroller. The device is compatible with Arduino or CircuitPython, allowing LED activation immediately via Adafruit_GFX-compliant libraries for drawing graphics. Explore detailed tutorials to maximize its potential using Arduino and CircuitPython.