const Matrix = require('8x8matrix');
 
let matrix = new Matrix();
matrix.writeArray(matrix.smily);

let matrix = new Matrix({
    brightness: 15,
    slaveAddress: 0x70,
    bautrate: 10000
});

var smily = [
    0,0,1,1,1,1,0,0,
    0,1,0,0,0,0,1,0,
    1,0,1,0,1,0,0,1,
    1,0,1,0,1,0,0,1,
    1,0,0,0,0,1,0,1,
    1,0,1,1,1,0,0,1,
    0,1,0,0,0,0,1,0,
    0,0,1,1,1,1,0,0
];
 
matrix.writeArray(smily);
 
/**
  * Set brightness of all LED
  * Values: 1 (very low) to 15 (very bright)
  */
 
matrix.setBrightness(8);
 
/**
  * Set first top-left LED to on
  * matrix.setLED(x, y, true/false);
  */
 
matrix.setLED(0, 0, 1);