tinkerboard: add examples for ASUS Tinker Board

Signed-off-by: deadprogram <ron@hybridgroup.com>

examples/tinkerboard_blink.go

@@ -0,0 +1,32 @@
+// +build example
+//
+// Do not build by default.
+
+package main
+
+import (
+	"time"
+
+	"gobot.io/x/gobot"
+	"gobot.io/x/gobot/drivers/gpio"
+	"gobot.io/x/gobot/platforms/tinkerboard"
+)
+
+func main() {
+	r := tinkerboard.NewAdaptor()
+	led := gpio.NewLedDriver(r, "7")
+
+	work := func() {
+		gobot.Every(1*time.Second, func() {
+			led.Toggle()
+		})
+	}
+
+	robot := gobot.NewRobot("blinkBot",
+		[]gobot.Connection{r},
+		[]gobot.Device{led},
+		work,
+	)
+
+	robot.Start()
+}

examples/tinkerboard_grove_lcd.go

@@ -0,0 +1,49 @@
+// +build example
+//
+// Do not build by default.
+
+package main
+
+import (
+	"time"
+
+	"gobot.io/x/gobot"
+	"gobot.io/x/gobot/drivers/i2c"
+	"gobot.io/x/gobot/platforms/tinkerboard"
+)
+
+func main() {
+	board := tinkerboard.NewAdaptor()
+	screen := i2c.NewGroveLcdDriver(board)
+
+	work := func() {
+		screen.Write("Hello from")
+
+		screen.SetRGB(255, 0, 0)
+
+		gobot.After(5*time.Second, func() {
+			screen.Clear()
+			screen.Home()
+			screen.SetRGB(0, 255, 0)
+			// set a custom character in the first position
+			screen.SetCustomChar(0, i2c.CustomLCDChars["smiley"])
+			// add the custom character at the end of the string
+			screen.Write("\nTinker Board " + string(byte(0)))
+			gobot.Every(500*time.Millisecond, func() {
+				screen.Scroll(false)
+			})
+		})
+
+		screen.Home()
+		time.Sleep(1 * time.Second)
+		screen.SetRGB(0, 0, 255)
+	}
+
+	robot := gobot.NewRobot("screenBot",
+		[]gobot.Connection{board},
+		[]gobot.Device{screen},
+		work,
+	)
+
+	robot.Start()
+}