LED SHIM is the same IS31FL3731 as the other board, but on another I2C address.
The LED used are RGB LED, so what is 28 LED is addressed as 3 row of 28 RED, GREEN and BLUE LEDs.
While it can be addressed as a 28*3 matrix, it give best result with the pixelrgb function I added and that will let you address the 28 position with RGB value.
One specific example is provided that use this unique function.
LED SHIM is the same IS31FL3731 as the other board, but on another I2C address.
The LED used are RGB LED, so what is 28 LED is addressed as 3 row of 28 RED, GREEN and BLUE LEDs.
While it can be addressed as a 28*3 matrix, it give best result with the pixelrgb function I added and that will let you address the 28 position with RGB value.
One specific example is provided that use this unique function.