hybridgroup.gobot/examples/firmata_motor.go

package main

import (
	"github.com/hybridgroup/gobot"
	"github.com/hybridgroup/gobot/firmata"
	"github.com/hybridgroup/gobot/gpio"
)

func main() {
	firmataAdaptor := firmata.NewFirmataAdaptor()
	firmataAdaptor.Name = "firmata"
	firmataAdaptor.Port = "/dev/ttyACM0"

	motor := gpio.NewMotorDriver(firmataAdaptor)
	motor.Name = "motor"
	motor.SpeedPin = "3"

	work := func() {
		speed := byte(0)
		fade_amount := byte(15)

		gobot.Every("0.1s", func() {
			motor.Speed(speed)
			speed = speed + fade_amount
			if speed == 0 || speed == 255 {
				fade_amount = -fade_amount
			}
		})
	}

	robot := gobot.Robot{
		Connections: []gobot.Connection{firmataAdaptor},
		Devices:     []gobot.Device{motor},
		Work:        work,
	}

	robot.Start()
}