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

     1  //go:build example
     2  // +build example
     3  
     4  //
     5  // Do not build by default.
     6  
     7  /*
     8   To run this example, pass the device ID as first param,
     9   and the access token as the second param:
    10  
    11  	go run examples/particle_led_brightness.go mydevice myaccesstoken
    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/particle"
    23  )
    24  
    25  func main() {
    26  	core := particle.NewAdaptor(os.Args[1], os.Args[2])
    27  	led := gpio.NewLedDriver(core, "A1")
    28  
    29  	work := func() {
    30  		brightness := uint8(0)
    31  		fadeAmount := uint8(25)
    32  
    33  		gobot.Every(500*time.Millisecond, func() {
    34  			led.Brightness(brightness)
    35  			brightness = brightness + fadeAmount
    36  			if brightness == 0 || brightness == 255 {
    37  				fadeAmount = -fadeAmount
    38  			}
    39  		})
    40  	}
    41  
    42  	robot := gobot.NewRobot("spark",
    43  		[]gobot.Connection{core},
    44  		[]gobot.Device{led},
    45  		work,
    46  	)
    47  
    48  	robot.Start()
    49  }