ssd1306: added example

Signed-off-by: Jordi Llonch <[email protected]>

examples/raspi_ssd1306.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"time"
+
+	"gobot.io/x/gobot"
+	"gobot.io/x/gobot/drivers/i2c"
+	"gobot.io/x/gobot/platforms/raspi"
+)
+
+func main() {
+
+	r := raspi.NewAdaptor()
+	oled := i2c.NewSSD1306Driver(r)
+
+	stage := false
+
+	work := func() {
+
+		gobot.Every(1*time.Second, func() {
+			oled.Clear()
+			if stage {
+				for x := 0; x < oled.Buffer.Width; x += 5 {
+					for y := 0; y < oled.Buffer.Height; y++ {
+						oled.Set(x, y, 1)
+					}
+				}
+			}
+			stage = !stage
+			oled.Display()
+		})
+	}
+
+	robot := gobot.NewRobot("ssd1306Robot",
+		[]gobot.Connection{r},
+		[]gobot.Device{oled},
+		work,
+	)
+
+	robot.Start()
+}