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Gobot (https://gobot.io/) is a framework using the Go programming language (https://golang.org/) for robotics, physical computing, and the Internet of Things.

It provides a simple, yet powerful way to create solutions that incorporate multiple, different hardware devices at the same time.

Want to run Go directly on microcontrollers? Check out our sister project TinyGo (https://tinygo.org/)

Getting Started

Get the Gobot source with: go get -d -u gobot.io/x/gobot/...

Examples

Gobot with Arduino

package main

import (
	"time"

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

func main() {
	firmataAdaptor := firmata.NewAdaptor("/dev/ttyACM0")
	led := gpio.NewLedDriver(firmataAdaptor, "13")

	work := func() {
		gobot.Every(1*time.Second, func() {
			led.Toggle()
		})
	}

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

	robot.Start()
}

Gobot with Sphero

package main

import (
	"fmt"
	"time"

	"gobot.io/x/gobot"
	"gobot.io/x/gobot/platforms/sphero"
)

func main() {
	adaptor := sphero.NewAdaptor("/dev/rfcomm0")
	driver := sphero.NewSpheroDriver(adaptor)

	work := func() {
		gobot.Every(3*time.Second, func() {
			driver.Roll(30, uint16(gobot.Rand(360)))
		})
	}

	robot := gobot.NewRobot("sphero",
		[]gobot.Connection{adaptor},
		[]gobot.Device{driver},
		work,
	)

	robot.Start()
}

"Metal" Gobot

You can use the entire Gobot framework as shown in the examples above ("Classic" Gobot), or you can pick and choose from the various Gobot packages to control hardware with nothing but pure idiomatic Golang code ("Metal" Gobot). For example:

package main

import (
	"gobot.io/x/gobot/drivers/gpio"
	"gobot.io/x/gobot/platforms/intel-iot/edison"
	"time"
)

func main() {
	e := edison.NewAdaptor()
	e.Connect()

	led := gpio.NewLedDriver(e, "13")
	led.Start()

	for {
		led.Toggle()
		time.Sleep(1000 * time.Millisecond)
	}
}

"Master" Gobot

You can also use the full capabilities of the framework aka "Master Gobot" to control swarms of robots or other features such as the built-in API server. For example:

package main

import (
	"fmt"
	"time"

	"gobot.io/x/gobot"
	"gobot.io/x/gobot/api"
	"gobot.io/x/gobot/platforms/sphero"
)

func NewSwarmBot(port string) *gobot.Robot {
	spheroAdaptor := sphero.NewAdaptor(port)
	spheroDriver := sphero.NewSpheroDriver(spheroAdaptor)
	spheroDriver.SetName("Sphero" + port)

	work := func() {
		spheroDriver.Stop()

		spheroDriver.On(sphero.Collision, func(data interface{}) {
			fmt.Println("Collision Detected!")
		})

		gobot.Every(1*time.Second, func() {
			spheroDriver.Roll(100, uint16(gobot.Rand(360)))
		})
		gobot.Every(3*time.Second, func() {
			spheroDriver.SetRGB(uint8(gobot.Rand(255)),
				uint8(gobot.Rand(255)),
				uint8(gobot.Rand(255)),
			)
		})
	}

	robot := gobot.NewRobot("sphero",
		[]gobot.Connection{spheroAdaptor},
		[]gobot.Device{spheroDriver},
		work,
	)

	return robot
}

func main() {
	master := gobot.NewMaster()
	api.NewAPI(master).Start()

	spheros := []string{
		"/dev/rfcomm0",
		"/dev/rfcomm1",
		"/dev/rfcomm2",
		"/dev/rfcomm3",
	}

	for _, port := range spheros {
		master.AddRobot(NewSwarmBot(port))
	}

	master.Start()
}

Hardware Support

Gobot has a extensible system for connecting to hardware devices. The following robotics and physical computing platforms are currently supported:

Support for many devices that use General Purpose Input/Output (GPIO) have a shared set of drivers provided using the gobot/drivers/gpio package:

Support for many devices that use Analog Input/Output (AIO) have a shared set of drivers provided using the gobot/drivers/aio package:

Support for devices that use Inter-Integrated Circuit (I2C) have a shared set of drivers provided using the gobot/drivers/i2c package:

Support for devices that use Serial Peripheral Interface (SPI) have a shared set of drivers provided using the gobot/drivers/spi package:

More platforms and drivers are coming soon...

API:

Gobot includes a RESTful API to query the status of any robot running within a group, including the connection and device status, and execute device commands.

To activate the API, import the gobot.io/x/gobot/api package and instantiate the API like this:

  master := gobot.NewMaster()
  api.NewAPI(master).Start()

You can also specify the api host and port, and turn on authentication:

  master := gobot.NewMaster()
  server := api.NewAPI(master)
  server.Port = "4000"
  server.AddHandler(api.BasicAuth("gort", "klatuu"))
  server.Start()

You may access the robeaux React.js interface with Gobot by navigating to http://localhost:3000/index.html.

CLI

Gobot uses the Gort http://gort.io Command Line Interface (CLI) so you can access important features right from the command line. We call it "RobotOps", aka "DevOps For Robotics". You can scan, connect, update device firmware, and more!

Gobot also has its own CLI to generate new platforms, adaptors, and drivers. You can check it out in the /cli directory.

Documentation

We're always adding documentation to our web site at https://gobot.io/ please check there as we continue to work on Gobot

Thank you!

Need help?

Contributing

For our contribution guidelines, please go to https://github.com/hybridgroup/gobot/blob/master/CONTRIBUTING.md .

Gobot is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. You can read about it here.

License

Copyright (c) 2013-2019 The Hybrid Group. Licensed under the Apache 2.0 license.

The Contributor Covenant is released under the Creative Commons Attribution 4.0 International Public License, which requires that attribution be included.