User Manual

fillScreen allows you to fill the entire screen with a single color:

Finally, we draw the text that is shown up top as the demonstration image. We can use the print function, which you'll

be familiar with from Serial. You can use print to print strings, numbers, variables, etc. However, we need to set up the

printing before just going off and doing it! First, we must set the cursor location with setCursor which is where the top

left pixel of the first character will go, this can be anywhere but note that text characters are 8 pixels high by default.

Next setTextSize lets you set the size to 1 (8 pixel high) or 2 (16 pixel high for really big text!), you probably want just to

stick with 1 for now. Lastly we can set the color of the text with setTextColor. Once this is all done, we can just

useprint('1') to print the character "1".

// draw a blue circle

matrix.drawCircle(7, 7, 7, matrix.Color333(0, 0, 7));

// fill a violet circle

matrix.fillCircle(23, 7, 7, matrix.Color333(7, 0, 7));

// fill the screen with 'black'

matrix.fillScreen(matrix.Color333(0, 0, 0));

// draw some text!

matrix.setCursor(1, 0); // start at top left, with one pixel of spacing

matrix.setTextSize(1); // size 1 == 8 pixels high

// print each letter with a rainbow color

matrix.setTextColor(matrix.Color333(7,0,0));

matrix.print('1');

matrix.setTextColor(matrix.Color333(7,4,0));

matrix.print('6');

matrix.setTextColor(matrix.Color333(7,7,0));

matrix.print('x');

matrix.setTextColor(matrix.Color333(4,7,0));

matrix.print('3');

matrix.setTextColor(matrix.Color333(0,7,0));

matrix.print('2');

matrix.setCursor(1, 9); // next line

matrix.setTextColor(matrix.Color333(0,7,7));

matrix.print('*');

matrix.setTextColor(matrix.Color333(0,4,7));

matrix.print('R');

matrix.setTextColor(matrix.Color333(0,0,7));

matrix.print('G');

matrix.setTextColor(matrix.Color333(4,0,7));

matrix.print("B");

matrix.setTextColor(matrix.Color333(7,0,4));

matrix.print("*");