// create a new canvas with the given width and height, and the config, in this
// case the configuration is for a Unicorn pHAT (8x4 pixels matrix) with the
// default configuration
c, _ := ws281x.NewCanvas(8, 4, &ws281x.DefaultConfig)


// initialize the canvas and the matrix
c.Initialize()

// since ws281x implements image.Image any function like draw.Draw from the std
// library may be used with it.
// 
// now we copy a white image into the ws281x.Canvas, this turn on all the leds
// to white
draw.Draw(c, c.Bounds(), image.NewUniform(color.White), image.ZP, draw.Over)

// render and sleep to see the leds on
c.Render()
time.Sleep(time.Second * 5)

// don't forget close the canvas, if not you leds may remain on
c.Close()