Index

/*
 How to run
 Pass serial port to use as the first param:

        go run examples/firmata_led_brightness.go /dev/ttyACM0
*/

package main

import (
        "os"
        "time"

        "gobot.io/x/gobot"
        "gobot.io/x/gobot/drivers/gpio"
        "gobot.io/x/gobot/platforms/firmata"
)

func main() {
        firmataAdaptor := firmata.NewAdaptor(os.Args[1])
        led := gpio.NewLedDriver(firmataAdaptor, "3")

        work := func() {
                brightness := uint8(0)
                fadeAmount := uint8(15)

                gobot.Every(100*time.Millisecond, func() {
                        led.Brightness(brightness)
                        brightness = brightness + fadeAmount
                        if brightness == 0 || brightness == 255 {
                                fadeAmount = -fadeAmount
                        }
                })
        }

        robot := gobot.NewRobot("pwmBot",
                []gobot.Connection{firmataAdaptor},
                []gobot.Device{led},
                work,
        )

        robot.Start()
}