User Manual

Should be changed to:

(Any of digital pins 10-13 and 50-53 can be used for this function on the Mega, with the corresponding wiring change.

The examples all reference pin 11.)

If using an Adafruit Metro M4 (

not

M0 or 328), the CLK change would instead be:

After uploading, with the 16x32 panel you should see the following:

This is a test pattern that shows 512 colors (out of 4096) on the 512 pixels. Since there's no really elegant way to show

a 3-dimensional color space (R/G/B) in two dimensions, there's just repeating grids of red/green with increasing blue.

Anyways, this shows you the range of colors you can achieve!

or, with the 32x32 panel:

#define CLK 8 // MUST be on PORTB! (Use pin 11 on Mega)

#define CLK 11

#define CLK A4