README.md

IS31FL3731 -- LED Matrix Display Driver

The IS31FL3731. It is a compact LED driver for 144 single LEDs. The device can be programmed via an I2C compatible interface.

This binding and samples are based on adafruit/Adafruit_CircuitPython_IS31FL3731.

Adafruit LED Charlieplexed Matrix - 16x9

Adafruit sells 16x9 Charlieplexed LED matrices (multiple colors) that are designed to match with the Adafruit 16x9 Charlieplexed PWM LED Matrix Driver - IS31FL3731.

You can write the following code to control them or checkout a larger sample.

using Backpack16x9 matrix = new(I2cDevice.Create(new I2cConnectionSettings(busId: 1, Is31Fl3731.DefaultI2cAddress)));

matrix.Initialize();
matrix.EnableBlinking(0);
matrix.Fill(0);

matrix.Clear();
// Set pixel in the top left
matrix[0, 0] = 1;
// Set pixel in the middle
matrix[7, 3] = 1;
matrix[8, 4] = 1;
// Set pixel in the bottom right
matrix[15, 8] = 1;

Adafruit Charlieplexed LED Matrix Bonnet - 16x8

You won't be able to look away from the mesmerizing patterns created by this Adafruit CharliePlex LED Matrix Display Bonnet. This 16x8 LED display can be placed atop any Raspberry Pi computer with a 2x20 connector, for a beautiful, bright grid of 128 charlieplexed LEDs. It even comes with a built-in charlieplex driver that is run over I2C.

You can write the following code to control them or checkout a larger sample.

using Bonnet16x8 matrix = new(I2cDevice.Create(new I2cConnectionSettings(busId: 1, Is31Fl3731.DefaultI2cAddress)));

matrix.Initialize();
matrix.EnableBlinking(0);
matrix.Fill(0);

matrix.Clear();
// Set pixel in the top left
matrix[0, 0] = 1;
// Set pixel in the middle
matrix[7, 3] = 1;
matrix[8, 4] = 1;
// Set pixel in the bottom right
matrix[15, 7] = 1;

Pimoroni Scroll pHAT HD -- 17x7

A whole heap of LED pixels with individual brightness control, for scrolling messages, animations, and more. Scroll pHAT HD packs 17x7 pixels (119 total) onto a single pHAT, and gives you full PWM brightness control over each pixel. Create beautiful animations and even anti-aliased text by taking advantage of the per-pixel brightness.

You can write the following code to control them or checkout a larger sample.

using ScrollHat17x7 matrix = new(I2cDevice.Create(new I2cConnectionSettings(busId: 1, 0x61)));;

matrix.Initialize();
matrix.EnableBlinking(0);
matrix.Fill(0);

matrix.Clear();
// Set pixel in the top left
matrix[0, 0] = 1;
// Set pixel in the middle
matrix[7, 3] = 1;
matrix[8, 4] = 1;
// Set pixel in the bottom right
matrix[16, 8] = 1;

The same code works for Scroll HAT Mini.

Pimori LED Shim

28 tiny RGB LED pixels in a single row that just slip right onto your Pi's pins, no soldering required! LED SHIM is ideal for status updates, notifications, a VU meter, or as a bar graph for sensor readings.

You can write the following code to control them or checkout a larger sample.

using LedShim28x1 shim = new(I2cDevice.Create(new I2cConnectionSettings(busId: 1, 0x75)));
shim.Initialize();
shim.EnableBlinking(0);
shim.Fill(0);

for (int y = 0; y < 3; y++)
{
    for (int x = 0; x < shim.Width; x++)
    {
        shim[x, y] = 0xff;
        Thread.Sleep(100);
        shim[x, y] = 0;
    }
}

Pimori Led Matrix Breakout - 11x7

A tiny, tightly-packed matrix of 77 individually-controllable bright white LEDs. Ideal for scrolling text, animations, bar graphs, or just general illumination, and it's Raspberry Pi and Arduino-compatible.

You can write the following code to control them or checkout a larger sample.

using Breakout11x7 matrix = new(I2cDevice.Create(new I2cConnectionSettings(busId: 1, 0x75)));

matrix.Initialize();
matrix.EnableBlinking(0);
matrix.Fill(0);

matrix.Clear();
// Set pixel in the top left
matrix[0, 0] = 1;
// Set pixel in the middle
matrix[4, 3] = 1;
matrix[5, 4] = 1;
// Set pixel in the bottom right
matrix[10, 6] = 1;