gobot.io/x/gobot@v1.16.0/platforms/firmata/client/examples/blink.go (about)

     1  // +build example
     2  //
     3  // Do not build by default.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"time"
    10  
    11  	"go.bug.st/serial"
    12  	"gobot.io/x/gobot/platforms/firmata/client"
    13  )
    14  
    15  func main() {
    16  	sp, err := serial.Open("/dev/ttyACM0", &serial.Mode{BaudRate: 57600})
    17  	if err != nil {
    18  		panic(err)
    19  	}
    20  
    21  	board := client.New()
    22  
    23  	fmt.Println("connecting.....")
    24  	err = board.Connect(sp)
    25  	defer board.Disconnect()
    26  
    27  	if err != nil {
    28  		panic(err)
    29  	}
    30  
    31  	fmt.Println("firmware name:", board.FirmwareName)
    32  	fmt.Println("firmata version:", board.ProtocolVersion)
    33  
    34  	pin := 13
    35  	if err = board.SetPinMode(pin, client.Output); err != nil {
    36  		panic(err)
    37  	}
    38  
    39  	level := 0
    40  
    41  	for {
    42  		level ^= 1
    43  		if err := board.DigitalWrite(pin, level); err != nil {
    44  			panic(err)
    45  		}
    46  		fmt.Println("level:", level)
    47  		time.Sleep(500 * time.Millisecond)
    48  	}
    49  }