gpio

package
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 Go to latest Published: Dec 21, 2017 License: Apache-2.0, Apache-2.0 Imports: 7 Imported by: 0

README

GPIO

This package provides drivers for General Purpose Input/Output (GPIO) devices. It is normally used by connecting an adaptor such as firmata that supports the needed interfaces for GPIO devices.

Getting Started

Installing

go get -d -u gobot.io/x/gobot/...

Hardware Support

Gobot has a extensible system for connecting to hardware devices. The following GPIO devices are currently supported:

  • Button
  • Buzzer
  • Direct Pin
  • Grove Button
  • Grove Buzzer
  • Grove LED
  • Grove Magnetic Switch
  • Grove Relay
  • Grove Touch Sensor
  • LED
  • Makey Button
  • Motor
  • Proximity Infra Red (PIR) Motion Sensor
  • Relay
  • RGB LED
  • Servo

More drivers are coming soon...

Documentation

Overview

Package gpio provides Gobot drivers for General Purpose Input/Output devices.

Installing: 

go get -d -u gobot.io/x/gobot

For further information refer to gpio README: https://github.com/hybridgroup/gobot/blob/master/platforms/gpio/README.md

Index

Constants

View Source 
const (
	Whole   = 4
	Half    = 2
	Quarter = 1
	Eighth  = 0.500
)
View Source 
const (
	Rest = 0
	C0   = 16.35
	Db0  = 17.32
	D0   = 18.35
	Eb0  = 19.45
	E0   = 20.60
	F0   = 21.83
	Gb0  = 23.12
	G0   = 24.50
	Ab0  = 25.96
	A0   = 27.50
	Bb0  = 29.14
	B0   = 30.87
	C1   = 32.70
	Db1  = 34.65
	D1   = 36.71
	Eb1  = 38.89
	E1   = 41.20
	F1   = 43.65
	Gb1  = 46.25
	G1   = 49.00
	Ab1  = 51.91
	A1   = 55.00
	Bb1  = 58.27
	B1   = 61.74
	C2   = 65.41
	Db2  = 69.30
	D2   = 73.42
	Eb2  = 77.78
	E2   = 82.41
	F2   = 87.31
	Gb2  = 92.50
	G2   = 98.00
	Ab2  = 103.83
	A2   = 110.00
	Bb2  = 116.54
	B2   = 123.47
	C3   = 130.81
	Db3  = 138.59
	D3   = 146.83
	Eb3  = 155.56
	E3   = 164.81
	F3   = 174.61
	Gb3  = 185.00
	G3   = 196.00
	Ab3  = 207.65
	A3   = 220.00
	Bb3  = 233.08
	B3   = 246.94
	C4   = 261.63
	Db4  = 277.18
	D4   = 293.66
	Eb4  = 311.13
	E4   = 329.63
	F4   = 349.23
	Gb4  = 369.99
	G4   = 392.00
	Ab4  = 415.30
	A4   = 440.00
	Bb4  = 466.16
	B4   = 493.88
	C5   = 523.25
	Db5  = 554.37
	D5   = 587.33
	Eb5  = 622.25
	E5   = 659.25
	F5   = 698.46
	Gb5  = 739.99
	G5   = 783.99
	Ab5  = 830.61
	A5   = 880.00
	Bb5  = 932.33
	B5   = 987.77
	C6   = 1046.50
	Db6  = 1108.73
	D6   = 1174.66
	Eb6  = 1244.51
	E6   = 1318.51
	F6   = 1396.91
	Gb6  = 1479.98
	G6   = 1567.98
	Ab6  = 1661.22
	A6   = 1760.00
	Bb6  = 1864.66
	B6   = 1975.53
	C7   = 2093.00
	Db7  = 2217.46
	D7   = 2349.32
	Eb7  = 2489.02
	E7   = 2637.02
	F7   = 2793.83
	Gb7  = 2959.96
	G7   = 3135.96
	Ab7  = 3322.44
	A7   = 3520.00
	Bb7  = 3729.31
	B7   = 3951.07
	C8   = 4186.01
	Db8  = 4434.92
	D8   = 4698.63
	Eb8  = 4978.03
	E8   = 5274.04
	F8   = 5587.65
	Gb8  = 5919.91
	G8   = 6271.93
	Ab8  = 6644.88
	A8   = 7040.00
	Bb8  = 7458.62
	B8   = 7902.13
)
View Source 
const (
	// Error event
	Error = "error"
	// ButtonRelease event
	ButtonRelease = "release"
	// ButtonPush event
	ButtonPush = "push"
	// Data event
	Data = "data"
	// Vibration event
	Vibration = "vibration"
	// MotionDetected event
	MotionDetected = "motion-detected"
	// MotionStopped event
	MotionStopped = "motion-stopped"
)

Variables

View Source 
var (
	// ErrServoWriteUnsupported is the error resulting when a driver attempts to use
	// hardware capabilities which a connection does not support
	ErrServoWriteUnsupported = errors.New("ServoWrite is not supported by this platform")
	// ErrPwmWriteUnsupported is the error resulting when a driver attempts to use
	// hardware capabilities which a connection does not support
	ErrPwmWriteUnsupported = errors.New("PwmWrite is not supported by this platform")
	// ErrAnalogReadUnsupported is error resulting when a driver attempts to use
	// hardware capabilities which a connection does not support
	ErrAnalogReadUnsupported = errors.New("AnalogRead is not supported by this platform")
	// ErrDigitalWriteUnsupported is the error resulting when a driver attempts to use
	// hardware capabilities which a connection does not support
	ErrDigitalWriteUnsupported = errors.New("DigitalWrite is not supported by this platform")
	// ErrDigitalReadUnsupported is the error resulting when a driver attempts to use
	// hardware capabilities which a connection does not support
	ErrDigitalReadUnsupported = errors.New("DigitalRead is not supported by this platform")
	// ErrServoOutOfRange is the error resulting when a driver attempts to use
	// hardware capabilities which a connection does not support
	ErrServoOutOfRange = errors.New("servo angle must be between 0-180")
)
View Source 
var StepperModes = struct {
	SinglePhaseStepping [][4]byte
	DualPhaseStepping   [][4]byte
	HalfStepping        [][4]byte
}{

	SinglePhaseStepping: [][4]byte{
		{1, 0, 0, 0},
		{0, 1, 0, 0},
		{0, 0, 1, 0},
		{0, 0, 0, 1},
	},

	DualPhaseStepping: [][4]byte{
		{1, 0, 0, 1},
		{1, 1, 0, 0},
		{0, 1, 1, 0},
		{0, 0, 1, 1},
	},

	HalfStepping: [][4]byte{
		{1, 0, 0, 1},
		{1, 0, 0, 0},
		{1, 1, 0, 0},
		{0, 1, 0, 0},
		{0, 1, 1, 0},
		{0, 0, 1, 0},
		{0, 0, 1, 1},
		{0, 0, 0, 1},
	},
}

StepperModes to decide on Phase and Stepping

Functions

This section is empty.

Types

type ButtonDriver 

type ButtonDriver struct {
	Active       bool
	DefaultState int

	gobot.Eventer
	// contains filtered or unexported fields
}

ButtonDriver Represents a digital Button

func NewButtonDriver 

func NewButtonDriver(a DigitalReader, pin string, v ...time.Duration) *ButtonDriver

NewButtonDriver returns a new ButtonDriver with a polling interval of 10 Milliseconds given a DigitalReader and pin.

Optionally accepts: 

time.Duration: Interval at which the ButtonDriver is polled for new information

func (*ButtonDriver) Connection 

func (b *ButtonDriver) Connection() gobot.Connection

Connection returns the ButtonDrivers Connection

func (*ButtonDriver) Halt 

func (b *ButtonDriver) Halt() (err error)

Halt stops polling the button for new information

func (*ButtonDriver) Name 

func (b *ButtonDriver) Name() string

Name returns the ButtonDrivers name

func (*ButtonDriver) Pin 

func (b *ButtonDriver) Pin() string

Pin returns the ButtonDrivers pin

func (*ButtonDriver) SetName 

func (b *ButtonDriver) SetName(n string)

SetName sets the ButtonDrivers name

func (*ButtonDriver) Start 

func (b *ButtonDriver) Start() (err error)

Start starts the ButtonDriver and polls the state of the button at the given interval.

Emits the Events: 

Push int - On button push
Release int - On button release
Error error - On button error

type BuzzerDriver 

type BuzzerDriver struct {
	BPM float64
	// contains filtered or unexported fields
}

BuzzerDriver represents a digital buzzer

func NewBuzzerDriver 

func NewBuzzerDriver(a DigitalWriter, pin string) *BuzzerDriver

NewBuzzerDriver return a new BuzzerDriver given a DigitalWriter and pin.

func (*BuzzerDriver) Connection 

func (l *BuzzerDriver) Connection() gobot.Connection

Connection returns the BuzzerDrivers Connection

func (*BuzzerDriver) Halt 

func (l *BuzzerDriver) Halt() (err error)

Halt implements the Driver interface

func (*BuzzerDriver) Name 

func (l *BuzzerDriver) Name() string

Name returns the BuzzerDrivers name

func (*BuzzerDriver) Off 

func (l *BuzzerDriver) Off() (err error)

Off sets the buzzer to a low state.

func (*BuzzerDriver) On 

func (l *BuzzerDriver) On() (err error)

On sets the buzzer to a high state.

func (*BuzzerDriver) Pin 

func (l *BuzzerDriver) Pin() string

Pin returns the BuzzerDrivers name

func (*BuzzerDriver) SetName 

func (l *BuzzerDriver) SetName(n string)

SetName sets the BuzzerDrivers name

func (*BuzzerDriver) Start 

func (l *BuzzerDriver) Start() (err error)

Start implements the Driver interface

func (*BuzzerDriver) State 

func (l *BuzzerDriver) State() bool

State return true if the buzzer is On and false if the led is Off

func (*BuzzerDriver) Toggle 

func (l *BuzzerDriver) Toggle() (err error)

Toggle sets the buzzer to the opposite of it's current state

func (*BuzzerDriver) Tone 

func (l *BuzzerDriver) Tone(hz, duration float64) (err error)

type DigitalReader 

type DigitalReader interface {
	DigitalRead(string) (val int, err error)
}

DigitalReader interface represents an Adaptor which has DigitalRead capabilities

type DigitalWriter 

type DigitalWriter interface {
	DigitalWrite(string, byte) (err error)
}

DigitalWriter interface represents an Adaptor which has DigitalWrite capabilities

type DirectPinDriver 

type DirectPinDriver struct {
	gobot.Commander
	// contains filtered or unexported fields
}

DirectPinDriver represents a GPIO pin

func NewDirectPinDriver 

func NewDirectPinDriver(a gobot.Connection, pin string) *DirectPinDriver

NewDirectPinDriver return a new DirectPinDriver given a Connection and pin.

Adds the following API Commands: 

"DigitalRead" - See DirectPinDriver.DigitalRead
"DigitalWrite" - See DirectPinDriver.DigitalWrite
"AnalogWrite" - See DirectPinDriver.AnalogWrite
"PwmWrite" - See DirectPinDriver.PwmWrite
"ServoWrite" - See DirectPinDriver.ServoWrite

func (*DirectPinDriver) Connection 

func (d *DirectPinDriver) Connection() gobot.Connection

Connection returns the DirectPinDrivers Connection

func (*DirectPinDriver) DigitalRead 

func (d *DirectPinDriver) DigitalRead() (val int, err error)

DigitalRead returns the current digital state of the pin

func (*DirectPinDriver) DigitalWrite 

func (d *DirectPinDriver) DigitalWrite(level byte) (err error)

DigitalWrite writes to the pin. Acceptable values are 1 or 0

func (*DirectPinDriver) Halt 

func (d *DirectPinDriver) Halt() (err error)

Halt implements the Driver interface

func (*DirectPinDriver) Name 

func (d *DirectPinDriver) Name() string

Name returns the DirectPinDrivers name

func (*DirectPinDriver) Off 

func (d *DirectPinDriver) Off() (err error)

Turn Off pin

func (*DirectPinDriver) On 

func (d *DirectPinDriver) On() (err error)

Turn On pin

func (*DirectPinDriver) Pin 

func (d *DirectPinDriver) Pin() string

Pin returns the DirectPinDrivers pin

func (*DirectPinDriver) PwmWrite 

func (d *DirectPinDriver) PwmWrite(level byte) (err error)

PwmWrite writes the 0-254 value to the specified pin

func (*DirectPinDriver) ServoWrite 

func (d *DirectPinDriver) ServoWrite(level byte) (err error)

ServoWrite writes value to the specified pin

func (*DirectPinDriver) SetName 

func (d *DirectPinDriver) SetName(n string)

SetName sets the DirectPinDrivers name

func (*DirectPinDriver) Start 

func (d *DirectPinDriver) Start() (err error)

Start implements the Driver interface

type GroveButtonDriver 

type GroveButtonDriver struct {
	*ButtonDriver
}

GroveButtonDriver represents a button sensor with a Grove connector

func NewGroveButtonDriver 

func NewGroveButtonDriver(a DigitalReader, pin string, v ...time.Duration) *GroveButtonDriver

NewGroveButtonDriver returns a new GroveButtonDriver with a polling interval of 10 Milliseconds given a DigitalReader and pin.

Optionally accepts: 

time.Duration: Interval at which the ButtonDriver is polled for new information

type GroveBuzzerDriver 

type GroveBuzzerDriver struct {
	*BuzzerDriver
}

GroveBuzzerDriver represents a buzzer with a Grove connector

func NewGroveBuzzerDriver 

func NewGroveBuzzerDriver(a DigitalWriter, pin string) *GroveBuzzerDriver

NewGroveBuzzerDriver return a new GroveBuzzerDriver given a DigitalWriter and pin.

type GroveLedDriver 

type GroveLedDriver struct {
	*LedDriver
}

GroveLedDriver represents an LED with a Grove connector

func NewGroveLedDriver 

func NewGroveLedDriver(a DigitalWriter, pin string) *GroveLedDriver

NewGroveLedDriver return a new GroveLedDriver given a DigitalWriter and pin.

Adds the following API Commands: 

"Brightness" - See LedDriver.Brightness
"Toggle" - See LedDriver.Toggle
"On" - See LedDriver.On
"Off" - See LedDriver.Off

type GroveMagneticSwitchDriver 

type GroveMagneticSwitchDriver struct {
	*ButtonDriver
}

GroveMagneticSwitchDriver represent a magnetic switch sensor with a Grove connector

func NewGroveMagneticSwitchDriver 

func NewGroveMagneticSwitchDriver(a DigitalReader, pin string, v ...time.Duration) *GroveMagneticSwitchDriver

NewGroveMagneticSwitchDriver returns a new GroveMagneticSwitchDriver with a polling interval of 10 Milliseconds given a DigitalReader, name and pin.

Optionally accepts: 

time.Duration: Interval at which the ButtonDriver is polled for new information

type GroveRelayDriver 

type GroveRelayDriver struct {
	*RelayDriver
}

GroveRelayDriver represents a Relay with a Grove connector

func NewGroveRelayDriver 

func NewGroveRelayDriver(a DigitalWriter, pin string) *GroveRelayDriver

NewGroveRelayDriver return a new GroveRelayDriver given a DigitalWriter and pin.

Adds the following API Commands: 

"Toggle" - See RelayDriver.Toggle
"On" - See RelayDriver.On
"Off" - See RelayDriver.Off

type GroveTouchDriver 

type GroveTouchDriver struct {
	*ButtonDriver
}

GroveTouchDriver represents a touch button sensor with a Grove connector

func NewGroveTouchDriver 

func NewGroveTouchDriver(a DigitalReader, pin string, v ...time.Duration) *GroveTouchDriver

NewGroveTouchDriver returns a new GroveTouchDriver with a polling interval of 10 Milliseconds given a DigitalReader and pin.

Optionally accepts: 

time.Duration: Interval at which the ButtonDriver is polled for new information

type LedDriver 

type LedDriver struct {
	gobot.Commander
	// contains filtered or unexported fields
}

LedDriver represents a digital Led

func NewLedDriver 

func NewLedDriver(a DigitalWriter, pin string) *LedDriver

NewLedDriver return a new LedDriver given a DigitalWriter and pin.

Adds the following API Commands: 

"Brightness" - See LedDriver.Brightness
"Toggle" - See LedDriver.Toggle
"On" - See LedDriver.On
"Off" - See LedDriver.Off

func (*LedDriver) Brightness 

func (l *LedDriver) Brightness(level byte) (err error)

Brightness sets the led to the specified level of brightness

func (*LedDriver) Connection 

func (l *LedDriver) Connection() gobot.Connection

Connection returns the LedDrivers Connection

func (*LedDriver) Halt 

func (l *LedDriver) Halt() (err error)

Halt implements the Driver interface

func (*LedDriver) Name 

func (l *LedDriver) Name() string

Name returns the LedDrivers name

func (*LedDriver) Off 

func (l *LedDriver) Off() (err error)

Off sets the led to a low state.

func (*LedDriver) On 

func (l *LedDriver) On() (err error)

On sets the led to a high state.

func (*LedDriver) Pin 

func (l *LedDriver) Pin() string

Pin returns the LedDrivers name

func (*LedDriver) SetName 

func (l *LedDriver) SetName(n string)

SetName sets the LedDrivers name

func (*LedDriver) Start 

func (l *LedDriver) Start() (err error)

Start implements the Driver interface

func (*LedDriver) State 

func (l *LedDriver) State() bool

State return true if the led is On and false if the led is Off

func (*LedDriver) Toggle 

func (l *LedDriver) Toggle() (err error)

Toggle sets the led to the opposite of it's current state

type MakeyButtonDriver 

type MakeyButtonDriver struct {
	Active bool

	gobot.Eventer
	// contains filtered or unexported fields
}

MakeyButtonDriver Represents a Makey Button

func NewMakeyButtonDriver 

func NewMakeyButtonDriver(a DigitalReader, pin string, v ...time.Duration) *MakeyButtonDriver

NewMakeyButtonDriver returns a new MakeyButtonDriver with a polling interval of 10 Milliseconds given a DigitalReader and pin.

Optionally accepts: 

time.Duration: Interval at which the ButtonDriver is polled for new information

func (*MakeyButtonDriver) Connection 

func (b *MakeyButtonDriver) Connection() gobot.Connection

Connection returns the MakeyButtonDrivers Connection

func (*MakeyButtonDriver) Halt 

func (b *MakeyButtonDriver) Halt() (err error)

Halt stops polling the makey button for new information

func (*MakeyButtonDriver) Name 

func (b *MakeyButtonDriver) Name() string

Name returns the MakeyButtonDrivers name

func (*MakeyButtonDriver) Pin 

func (b *MakeyButtonDriver) Pin() string

Pin returns the MakeyButtonDrivers pin

func (*MakeyButtonDriver) SetName 

func (b *MakeyButtonDriver) SetName(n string)

SetName sets the MakeyButtonDrivers name

func (*MakeyButtonDriver) Start 

func (b *MakeyButtonDriver) Start() (err error)

Start starts the MakeyButtonDriver and polls the state of the button at the given interval.

Emits the Events: 

Push int - On button push
Release int - On button release
Error error - On button error

type MotorDriver 

type MotorDriver struct {
	SpeedPin         string
	SwitchPin        string
	DirectionPin     string
	ForwardPin       string
	BackwardPin      string
	CurrentState     byte
	CurrentSpeed     byte
	CurrentMode      string
	CurrentDirection string
	// contains filtered or unexported fields
}

MotorDriver Represents a Motor

func NewMotorDriver 

func NewMotorDriver(a DigitalWriter, speedPin string) *MotorDriver

NewMotorDriver return a new MotorDriver given a DigitalWriter and pin

func (*MotorDriver) Backward 

func (m *MotorDriver) Backward(speed byte) (err error)

Backward sets the backward pin to the specified speed

func (*MotorDriver) Connection 

func (m *MotorDriver) Connection() gobot.Connection

Connection returns the MotorDrivers Connection

func (*MotorDriver) Direction 

func (m *MotorDriver) Direction(direction string) (err error)

Direction sets the direction pin to the specified speed

func (*MotorDriver) Forward 

func (m *MotorDriver) Forward(speed byte) (err error)

Forward sets the forward pin to the specified speed

func (*MotorDriver) Halt 

func (m *MotorDriver) Halt() (err error)

Halt implements the Driver interface

func (*MotorDriver) IsOff 

func (m *MotorDriver) IsOff() bool

IsOff returns true if the motor is off

func (*MotorDriver) IsOn 

func (m *MotorDriver) IsOn() bool

IsOn returns true if the motor is on

func (*MotorDriver) Max 

func (m *MotorDriver) Max() (err error)

Max sets the motor to the maximum speed

func (*MotorDriver) Min 

func (m *MotorDriver) Min() (err error)

Min sets the motor to the minimum speed

func (*MotorDriver) Name 

func (m *MotorDriver) Name() string

Name returns the MotorDrivers name

func (*MotorDriver) Off 

func (m *MotorDriver) Off() (err error)

Off turns the motor off or sets the motor to a 0 speed

func (*MotorDriver) On 

func (m *MotorDriver) On() (err error)

On turns the motor on or sets the motor to a maximum speed

func (*MotorDriver) SetName 

func (m *MotorDriver) SetName(n string)

SetName sets the MotorDrivers name

func (*MotorDriver) Speed 

func (m *MotorDriver) Speed(value byte) (err error)

Speed sets the speed of the motor

func (*MotorDriver) Start 

func (m *MotorDriver) Start() (err error)

Start implements the Driver interface

func (*MotorDriver) Toggle 

func (m *MotorDriver) Toggle() (err error)

Toggle sets the motor to the opposite of it's current state

type PIRMotionDriver 

type PIRMotionDriver struct {
	Active bool

	gobot.Eventer
	// contains filtered or unexported fields
}

PIRMotionDriver represents a digital Proximity Infra Red (PIR) motion detecter

func NewPIRMotionDriver 

func NewPIRMotionDriver(a DigitalReader, pin string, v ...time.Duration) *PIRMotionDriver

NewPIRMotionDriver returns a new PIRMotionDriver with a polling interval of 10 Milliseconds given a DigitalReader and pin.

Optionally accepts: 

time.Duration: Interval at which the PIRMotionDriver is polled for new information

func (*PIRMotionDriver) Connection 

func (p *PIRMotionDriver) Connection() gobot.Connection

Connection returns the PIRMotionDriver Connection

func (*PIRMotionDriver) Halt 

func (p *PIRMotionDriver) Halt() (err error)

Halt stops polling the button for new information

func (*PIRMotionDriver) Name 

func (p *PIRMotionDriver) Name() string

Name returns the PIRMotionDriver name

func (*PIRMotionDriver) Pin 

func (p *PIRMotionDriver) Pin() string

Pin returns the PIRMotionDriver pin

func (*PIRMotionDriver) SetName 

func (p *PIRMotionDriver) SetName(n string)

SetName sets the PIRMotionDriver name

func (*PIRMotionDriver) Start 

func (p *PIRMotionDriver) Start() (err error)

Start starts the PIRMotionDriver and polls the state of the sensor at the given interval.

Emits the Events: 

MotionDetected - On motion detected
MotionStopped int - On motion stopped
Error error - On button error

The PIRMotionDriver will send the MotionDetected event over and over, just as long as motion is still being detected. It will only send the MotionStopped event once, however, until motion starts being detected again

type PwmWriter 

type PwmWriter interface {
	PwmWrite(string, byte) (err error)
}

PwmWriter interface represents an Adaptor which has Pwm capabilities

type RelayDriver 

type RelayDriver struct {
	gobot.Commander
	// contains filtered or unexported fields
}

RelayDriver represents a digital relay

func NewRelayDriver 

func NewRelayDriver(a DigitalWriter, pin string) *RelayDriver

NewRelayDriver return a new RelayDriver given a DigitalWriter and pin.

Adds the following API Commands: 

"Toggle" - See RelayDriver.Toggle
"On" - See RelayDriver.On
"Off" - See RelayDriver.Off

func (*RelayDriver) Connection 

func (l *RelayDriver) Connection() gobot.Connection

Connection returns the RelayDrivers Connection

func (*RelayDriver) Halt 

func (l *RelayDriver) Halt() (err error)

Halt implements the Driver interface

func (*RelayDriver) Name 

func (l *RelayDriver) Name() string

Name returns the RelayDrivers name

func (*RelayDriver) Off 

func (l *RelayDriver) Off() (err error)

Off sets the relay to a low state.

func (*RelayDriver) On 

func (l *RelayDriver) On() (err error)

On sets the relay to a high state.

func (*RelayDriver) Pin 

func (l *RelayDriver) Pin() string

Pin returns the RelayDrivers name

func (*RelayDriver) SetName 

func (l *RelayDriver) SetName(n string)

SetName sets the RelayDrivers name

func (*RelayDriver) Start 

func (l *RelayDriver) Start() (err error)

Start implements the Driver interface

func (*RelayDriver) State 

func (l *RelayDriver) State() bool

State return true if the relay is On and false if the relay is Off

func (*RelayDriver) Toggle 

func (l *RelayDriver) Toggle() (err error)

Toggle sets the relay to the opposite of it's current state

type RgbLedDriver 

type RgbLedDriver struct {
	gobot.Commander
	// contains filtered or unexported fields
}

RgbLedDriver represents a digital RGB Led

func NewRgbLedDriver 

func NewRgbLedDriver(a DigitalWriter, redPin string, greenPin string, bluePin string) *RgbLedDriver

NewRgbLedDriver return a new RgbLedDriver given a DigitalWriter and 3 pins: redPin, greenPin, and bluePin

Adds the following API Commands: 

"SetRGB" - See RgbLedDriver.SetRGB
"Toggle" - See RgbLedDriver.Toggle
"On" - See RgbLedDriver.On
"Off" - See RgbLedDriver.Off

func (*RgbLedDriver) BluePin 

func (l *RgbLedDriver) BluePin() string

BluePin returns the RgbLedDrivers bluePin

func (*RgbLedDriver) Connection 

func (l *RgbLedDriver) Connection() gobot.Connection

Connection returns the RgbLedDriver Connection

func (*RgbLedDriver) GreenPin 

func (l *RgbLedDriver) GreenPin() string

GreenPin returns the RgbLedDrivers redPin

func (*RgbLedDriver) Halt 

func (l *RgbLedDriver) Halt() (err error)

Halt implements the Driver interface

func (*RgbLedDriver) Name 

func (l *RgbLedDriver) Name() string

Name returns the RGBLEDDrivers name

func (*RgbLedDriver) Off 

func (l *RgbLedDriver) Off() (err error)

Off sets the led to black.

func (*RgbLedDriver) On 

func (l *RgbLedDriver) On() (err error)

On sets the led's pins to their various states

func (*RgbLedDriver) Pin 

func (l *RgbLedDriver) Pin() string

Pin returns the RgbLedDrivers pins

func (*RgbLedDriver) RedPin 

func (l *RgbLedDriver) RedPin() string

RedPin returns the RgbLedDrivers redPin

func (*RgbLedDriver) SetLevel 

func (l *RgbLedDriver) SetLevel(pin string, level byte) (err error)

SetLevel sets the led to the specified color level

func (*RgbLedDriver) SetName 

func (l *RgbLedDriver) SetName(n string)

SetName sets the RGBLEDDrivers name

func (*RgbLedDriver) SetRGB 

func (l *RgbLedDriver) SetRGB(r, g, b byte) error

SetRGB sets the Red Green Blue value of the LED.

func (*RgbLedDriver) Start 

func (l *RgbLedDriver) Start() (err error)

Start implements the Driver interface

func (*RgbLedDriver) State 

func (l *RgbLedDriver) State() bool

State return true if the led is On and false if the led is Off

func (*RgbLedDriver) Toggle 

func (l *RgbLedDriver) Toggle() (err error)

Toggle sets the led to the opposite of it's current state

type ServoDriver 

type ServoDriver struct {
	gobot.Commander
	CurrentAngle byte
	// contains filtered or unexported fields
}

ServoDriver Represents a Servo

func NewServoDriver 

func NewServoDriver(a ServoWriter, pin string) *ServoDriver

NewServoDriver returns a new ServoDriver given a ServoWriter and pin.

Adds the following API Commands: 

"Move" - See ServoDriver.Move
	"Min" - See ServoDriver.Min
	"Center" - See ServoDriver.Center
	"Max" - See ServoDriver.Max

func (*ServoDriver) Center 

func (s *ServoDriver) Center() (err error)

Center sets the servo to it's center position

func (*ServoDriver) Connection 

func (s *ServoDriver) Connection() gobot.Connection

Connection returns the ServoDrivers connection

func (*ServoDriver) Halt 

func (s *ServoDriver) Halt() (err error)

Halt implements the Driver interface

func (*ServoDriver) Max 

func (s *ServoDriver) Max() (err error)

Max sets the servo to its maximum position

func (*ServoDriver) Min 

func (s *ServoDriver) Min() (err error)

Min sets the servo to it's minimum position

func (*ServoDriver) Move 

func (s *ServoDriver) Move(angle uint8) (err error)

Move sets the servo to the specified angle. Acceptable angles are 0-180

func (*ServoDriver) Name 

func (s *ServoDriver) Name() string

Name returns the ServoDrivers name

func (*ServoDriver) Pin 

func (s *ServoDriver) Pin() string

Pin returns the ServoDrivers pin

func (*ServoDriver) SetName 

func (s *ServoDriver) SetName(n string)

SetName sets the ServoDrivers name

func (*ServoDriver) Start 

func (s *ServoDriver) Start() (err error)

Start implements the Driver interface

type ServoWriter 

type ServoWriter interface {
	ServoWrite(string, byte) (err error)
}

ServoWriter interface represents an Adaptor which has Servo capabilities

type StepperDriver added in v1.8.0 

type StepperDriver struct {
	// contains filtered or unexported fields
}

StepperDriver object

func NewStepperDriver added in v1.8.0 

func NewStepperDriver(a DigitalWriter, pins [4]string, phase phase, stepsPerRev uint) *StepperDriver

NewStepperDriver returns a new StepperDriver given a DigitalWriter Pins - To which the stepper is connected Phase - Defined by StepperModes {SinglePhaseStepping, DualPhaseStepping, HalfStepping} Steps - No of steps per revolution of Stepper motor

func (*StepperDriver) Connection added in v1.8.0 

func (s *StepperDriver) Connection() gobot.Connection

Connection returns StepperDriver's connection

func (*StepperDriver) GetCurrentStep added in v1.8.0 

func (s *StepperDriver) GetCurrentStep() int

GetCurrentStep gives the current step of motor

func (*StepperDriver) GetMaxSpeed added in v1.8.0 

func (s *StepperDriver) GetMaxSpeed() uint

GetMaxSpeed gives the max RPM of motor

func (*StepperDriver) Halt added in v1.8.0 

func (s *StepperDriver) Halt() (err error)

Halt implements the Driver interface and halts the motion of the Stepper

func (*StepperDriver) IsMoving added in v1.8.0 

func (s *StepperDriver) IsMoving() bool

IsMoving returns a bool stating whether motor is currently in motion

func (*StepperDriver) Move added in v1.8.0 

func (s *StepperDriver) Move(stepsToMove int) error

Move moves the motor for given number of steps

func (*StepperDriver) Name added in v1.8.0 

func (s *StepperDriver) Name() string

Name of StepperDriver

func (*StepperDriver) Run added in v1.8.0 

func (s *StepperDriver) Run() (err error)

Run continuously runs the stepper

func (*StepperDriver) SetDirection added in v1.8.0 

func (s *StepperDriver) SetDirection(direction string) error

SetDirection sets the direction in which motor should be moving, Default is forward

func (*StepperDriver) SetName added in v1.8.0 

func (s *StepperDriver) SetName(n string)

SetName sets name for StepperDriver

func (*StepperDriver) SetSpeed added in v1.8.0 

func (s *StepperDriver) SetSpeed(rpm uint) error

SetSpeed sets the rpm

func (*StepperDriver) Start added in v1.8.0 

func (s *StepperDriver) Start() (err error)

Start implements the Driver interface and keeps running the stepper till halt is called

Source Files

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