added examples

[kd8bxp]

Added 3 examples:

Alphabet - which displays "hello world" on the 8x8 LED shield - font need some work, some letters are better than others. (Other improvements could be scrolling display).

Animation 1 - which makes a small box "grow" to a large box, and then shrink back to small. Also uses intensity to produce a fade effect. Timings can be changed to produce slightly different effects with the same animation pattern. Recommended wait times between 50 millisecs (very fast) and 250 millisecs.

Animation 2 - makes a circular pattern grow from the center of the matrix, appear to spin a few times, and shrink back to the center. Timings can be changed to produce slightly different effects with the same animation pattern. Recommended wait times between 50 millisecs (very fast) and 250 millisecs.

The three sketches show one way to create simple animations using the disBuffer

intensity_updated - simple change to also have the fade go the opposite direction, so you get a fade up and fade down effect.

[joeybab3]

Thanks for these! They should have put these in on their own...

[kd8bxp]

thank you, glad to help out a little bit. Yes I wondered why some "useful" examples where not included. Not that mine are "useful" :-)

[thomasfredericks]

Hi, I made a version compatible with the Adafruit GFX Library : https://github.com/thomasfredericks/wemos_matrix_gfx