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

     1  //go:build example
     2  // +build example
     3  
     4  //
     5  // Do not build by default.
     6  
     7  /*
     8   How to run
     9   Pass serial port to use as the first param:
    10  
    11  	go run examples/firmata_buzzer.go /dev/ttyACM0
    12  */
    13  
    14  package main
    15  
    16  import (
    17  	"os"
    18  	"time"
    19  
    20  	"gobot.io/x/gobot/v2"
    21  	"gobot.io/x/gobot/v2/drivers/gpio"
    22  	"gobot.io/x/gobot/v2/platforms/firmata"
    23  )
    24  
    25  func main() {
    26  	firmataAdaptor := firmata.NewAdaptor(os.Args[1])
    27  	buzzer := gpio.NewBuzzerDriver(firmataAdaptor, "3")
    28  
    29  	work := func() {
    30  		type note struct {
    31  			tone     float64
    32  			duration float64
    33  		}
    34  
    35  		song := []note{
    36  			{gpio.C4, gpio.Quarter},
    37  			{gpio.C4, gpio.Quarter},
    38  			{gpio.G4, gpio.Quarter},
    39  			{gpio.G4, gpio.Quarter},
    40  			{gpio.A4, gpio.Quarter},
    41  			{gpio.A4, gpio.Quarter},
    42  			{gpio.G4, gpio.Half},
    43  			{gpio.F4, gpio.Quarter},
    44  			{gpio.F4, gpio.Quarter},
    45  			{gpio.E4, gpio.Quarter},
    46  			{gpio.E4, gpio.Quarter},
    47  			{gpio.D4, gpio.Quarter},
    48  			{gpio.D4, gpio.Quarter},
    49  			{gpio.C4, gpio.Half},
    50  		}
    51  
    52  		for _, val := range song {
    53  			buzzer.Tone(val.tone, val.duration)
    54  			time.Sleep(10 * time.Millisecond)
    55  		}
    56  	}
    57  
    58  	robot := gobot.NewRobot("bot",
    59  		[]gobot.Connection{firmataAdaptor},
    60  		[]gobot.Device{buzzer},
    61  		work,
    62  	)
    63  
    64  	robot.Start()
    65  }