gobot.io/x/gobot/v2@v2.1.0/examples/firmata_grove_lcd.go (about)

     1  //go:build example
     2  // +build example
     3  
     4  //
     5  // Do not build by default.
     6  
     7  package main
     8  
     9  import (
    10  	"os"
    11  	"time"
    12  
    13  	"gobot.io/x/gobot/v2"
    14  	"gobot.io/x/gobot/v2/drivers/i2c"
    15  	"gobot.io/x/gobot/v2/platforms/firmata"
    16  )
    17  
    18  func main() {
    19  	board := firmata.NewAdaptor(os.Args[1])
    20  	screen := i2c.NewGroveLcdDriver(board)
    21  
    22  	work := func() {
    23  		screen.Write("hello")
    24  
    25  		screen.SetRGB(255, 0, 0)
    26  
    27  		gobot.After(5*time.Second, func() {
    28  			screen.Clear()
    29  			screen.Home()
    30  			screen.SetRGB(0, 255, 0)
    31  			// set a custom character in the first position
    32  			screen.SetCustomChar(0, i2c.CustomLCDChars["smiley"])
    33  			// add the custom character at the end of the string
    34  			screen.Write("goodbye\nhave a nice day " + string(byte(0)))
    35  			gobot.Every(500*time.Millisecond, func() {
    36  				screen.Scroll(false)
    37  			})
    38  		})
    39  
    40  		screen.Home()
    41  		time.Sleep(1 * time.Second)
    42  		screen.SetRGB(0, 0, 255)
    43  	}
    44  
    45  	robot := gobot.NewRobot("screenBot",
    46  		[]gobot.Connection{board},
    47  		[]gobot.Device{screen},
    48  		work,
    49  	)
    50  
    51  	robot.Start()
    52  }