Datasheet

There are also a few small routines that are special to the matrix:

setBrightness(

brighness

)- will let you change the overall brightness of the entire display. 0 is least bright, 15 is

brightest and is what is initialized by the display when you start. You can call this function at any time to change

the brightness of the -entire- display

blinkRate(

rate

) - You can blink the entire display. 0 is no blinking. 1, 2 or 3 is for display blinking.You can call this

function at any time to change the blink rate of the -entire- display

The default orientation for graphics commands on this

display places pixel (0,0) at the top-left when the header

is at the left and Adafruit logo at the right. To use the

matrix as shown above (header at top, logo at bottom),

call matrix.setRotation(3) before issuing graphics

commands.