Golang FromScale Examples

Example #1

File: firmata_cat_toy.go Project: hybridgroup/gobot

func main() {
	firmataAdaptor := firmata.NewAdaptor("/dev/ttyACM0")
	servo1 := gpio.NewServoDriver(firmataAdaptor, "5")
	servo2 := gpio.NewServoDriver(firmataAdaptor, "3")

	leapAdaptor := leap.NewAdaptor("127.0.0.1:6437")
	leapDriver := leap.NewDriver(leapAdaptor)

	work := func() {
		x := 90.0
		z := 90.0
		leapDriver.On(leap.MessageEvent, func(data interface{}) {
			if len(data.(leap.Frame).Hands) > 0 {
				hand := data.(leap.Frame).Hands[0]
				x = gobot.ToScale(gobot.FromScale(hand.X(), -300, 300), 30, 150)
				z = gobot.ToScale(gobot.FromScale(hand.Z(), -300, 300), 30, 150)
			}
		})
		gobot.Every(10*time.Millisecond, func() {
			servo1.Move(uint8(x))
			servo2.Move(uint8(z))
			fmt.Println("Current Angle: ", servo1.CurrentAngle, ",", servo2.CurrentAngle)
		})
	}

	robot := gobot.NewRobot("pwmBot",
		[]gobot.Connection{firmataAdaptor, leapAdaptor},
		[]gobot.Device{servo1, servo2, leapDriver},
		work,
	)

	robot.Start()
}

Example #2

File: raspi_adaptor.go Project: hybridgroup/gobot

// PwmWrite writes a PWM signal to the specified pin
func (r *Adaptor) PwmWrite(pin string, val byte) (err error) {
	sysfsPin, err := r.pwmPin(pin)
	if err != nil {
		return err
	}
	return r.piBlaster(fmt.Sprintf("%v=%v\n", sysfsPin, gobot.FromScale(float64(val), 0, 255)))
}

Example #3

File: joule_adaptor.go Project: hybridgroup/gobot

// PwmWrite writes the 0-254 value to the specified pin
func (e *Adaptor) PwmWrite(pin string, val byte) (err error) {
	sysPin := sysfsPinMap[pin]
	if sysPin.pwmPin != -1 {
		if e.pwmPins[sysPin.pwmPin] == nil {
			if err = e.DigitalWrite(pin, 1); err != nil {
				return
			}
			e.pwmPins[sysPin.pwmPin] = newPwmPin(sysPin.pwmPin)
			if err = e.pwmPins[sysPin.pwmPin].export(); err != nil {
				return
			}
			if err = e.pwmPins[sysPin.pwmPin].enable("1"); err != nil {
				return
			}
		}
		p, err := e.pwmPins[sysPin.pwmPin].period()
		if err != nil {
			return err
		}
		period, err := strconv.Atoi(p)
		if err != nil {
			return err
		}
		duty := gobot.FromScale(float64(val), 0, 255.0)
		return e.pwmPins[sysPin.pwmPin].writeDuty(strconv.Itoa(int(float64(period) * duty)))
	}
	return errors.New("Not a PWM pin")
}

Example #4

File: beaglebone_adaptor.go Project: hybridgroup/gobot

// pwmWrite writes pwm value to specified pin
func (b *Adaptor) pwmWrite(pin string, val byte) (err error) {
	i, err := b.pwmPin(pin)
	if err != nil {
		return
	}
	period := 500000.0
	duty := gobot.FromScale(float64(val), 0, 255.0)
	return b.pwmPins[i].pwmWrite(strconv.Itoa(int(period)), strconv.Itoa(int(period*duty)))
}

Example #5

File: beaglebone_adaptor.go Project: hybridgroup/gobot

// ServoWrite writes the 0-180 degree val to the specified pin.
func (b *Adaptor) ServoWrite(pin string, val byte) (err error) {
	i, err := b.pwmPin(pin)
	if err != nil {
		return err
	}
	period := 16666666.0
	duty := (gobot.FromScale(float64(val), 0, 180.0) * 0.115) + 0.05
	return b.pwmPins[i].pwmWrite(strconv.Itoa(int(period)), strconv.Itoa(int(period*duty)))
}

Example #6

File: raspi_adaptor.go Project: hybridgroup/gobot

// ServoWrite writes a servo signal to the specified pin
func (r *Adaptor) ServoWrite(pin string, angle byte) (err error) {
	sysfsPin, err := r.pwmPin(pin)
	if err != nil {
		return err
	}

	val := (gobot.ToScale(gobot.FromScale(float64(angle), 0, 180), 0, 200) / 1000.0) + 0.05

	return r.piBlaster(fmt.Sprintf("%v=%v\n", sysfsPin, val))
}

Example #7

File: beaglebone_led_brightness_with_analog_input.go Project: hybridgroup/gobot

func main() {
	beagleboneAdaptor := beaglebone.NewAdaptor()
	sensor := gpio.NewAnalogSensorDriver(beagleboneAdaptor, "P9_33")
	led := gpio.NewLedDriver(beagleboneAdaptor, "P9_14")

	work := func() {
		sensor.On(sensor.Event("data"), func(data interface{}) {
			brightness := uint8(
				gobot.ToScale(gobot.FromScale(float64(data.(int)), 0, 1024), 0, 255),
			)
			fmt.Println("sensor", data)
			fmt.Println("brightness", brightness)
			led.Brightness(brightness)
		})
	}

	robot := gobot.NewRobot("sensorBot",
		[]gobot.Connection{beagleboneAdaptor},
		[]gobot.Device{sensor, led},
		work,
	)

	robot.Start()
}

Example #8

File: edison_led_brightness_with_analog_input.go Project: hybridgroup/gobot

func main() {
	e := edison.NewAdaptor()
	sensor := aio.NewAnalogSensorDriver(e, "0")
	led := gpio.NewLedDriver(e, "3")

	work := func() {
		sensor.On(aio.Data, func(data interface{}) {
			brightness := uint8(
				gobot.ToScale(gobot.FromScale(float64(data.(int)), 0, 4096), 0, 255),
			)
			fmt.Println("sensor", data)
			fmt.Println("brightness", brightness)
			led.Brightness(brightness)
		})
	}

	robot := gobot.NewRobot("sensorBot",
		[]gobot.Connection{e},
		[]gobot.Device{sensor, led},
		work,
	)

	master.Start()
}

Example #9

File: firmata_led_brightness_with_analog_input.go Project: hybridgroup/gobot

func main() {
	firmataAdaptor := firmata.NewAdaptor("/dev/ttyACM0")
	sensor := gpio.NewAnalogSensorDriver(firmataAdaptor, "0")
	led := gpio.NewLedDriver(firmataAdaptor, "3")

	work := func() {
		sensor.On(gpio.Data, func(data interface{}) {
			brightness := uint8(
				gobot.ToScale(gobot.FromScale(float64(data.(int)), 0, 1024), 0, 255),
			)
			fmt.Println("sensor", data)
			fmt.Println("brightness", brightness)
			led.Brightness(brightness)
		})
	}

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

	robot.Start()
}

Example #10

File: examples_test.go Project: hybridgroup/gobot

func ExampleFromScale() {
	fmt.Println(gobot.FromScale(5, 0, 10))
	// Output:
	// 0.5
}

Example #11

File: leap_sphero.go Project: hybridgroup/gobot

func scale(position float64) uint8 {
	return uint8(gobot.ToScale(gobot.FromScale(position, 0, 1), 0, 255))
}